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Diffstat (limited to 'docs')
79 files changed, 998 insertions, 1346 deletions
diff --git a/docs/.templates/.page-level/_concept-page-template.md b/docs/.templates/.page-level/_concept-page-template.md index 685dd2ff..d6c4babb 100644 --- a/docs/.templates/.page-level/_concept-page-template.md +++ b/docs/.templates/.page-level/_concept-page-template.md @@ -1,10 +1,3 @@ -<!-- -title: Noun that describes the concept -description: Short summary (will be displayed in search engines) -custom_edit_url: Edit URL of the source file -keywords: [keywords, describing, the main topics] ---> - # Title Why should the reader care: “What’s in it for me?” diff --git a/docs/Demo-Sites.md b/docs/Demo-Sites.md index 291e3a5e..91b9c514 100644 --- a/docs/Demo-Sites.md +++ b/docs/Demo-Sites.md @@ -1,44 +1,34 @@ -<!-- -title: "Live demos" -date: 2020-03-26 -custom_edit_url: https://github.com/netdata/netdata/edit/master/docs/Demo-Sites.md -sidebar_label: "Live demos" -learn_status: "Published" -learn_topic_type: "Getting started" -learn_rel_path: "Getting started" -sidebar_position: "90" ---> # Live demos -See the live Netdata Cloud demo with Rooms (listed below) for specific use cases at **https://app.netdata.cloud/spaces/netdata-demo** +See the live Netdata Cloud demo with Rooms (listed below) for specific use cases at `https://app.netdata.cloud/spaces/netdata-demo` -| Location | Netdata Demo URL | 60 mins reqs | VM donated by | -| :------------------ | :-------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| :------------------------------------------------- | -| Netdata Cloud | **[Netdata Demo - All nodes](https://app.netdata.cloud/spaces/netdata-demo/rooms/all-nodes/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Active Directory](https://app.netdata.cloud/spaces/netdata-demo/rooms/active-directory/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Apache](https://app.netdata.cloud/spaces/netdata-demo/rooms/apache/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Cassandra](https://app.netdata.cloud/spaces/netdata-demo/rooms/cassandra/overview)** ||| -| Netdata Cloud | **[Netdata Demo - CoreDNS](https://app.netdata.cloud/spaces/netdata-demo/rooms/coredns/overview)** ||| -| Netdata Cloud | **[Netdata Demo - DNS Query](https://app.netdata.cloud/spaces/netdata-demo/rooms/dns-query/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Docker](https://app.netdata.cloud/spaces/netdata-demo/rooms/docker/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Host Reachability](https://app.netdata.cloud/spaces/netdata-demo/rooms/host-reachability/overview)** ||| -| Netdata Cloud | **[Netdata Demo - HTTP Endpoints](https://app.netdata.cloud/spaces/netdata-demo/rooms/http-endpoints/overview)** ||| -| Netdata Cloud | **[Netdata Demo - IIS](https://app.netdata.cloud/spaces/netdata-demo/rooms/iis/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Kubernetes](https://app.netdata.cloud/spaces/netdata-demo/rooms/kubernetes/kubernetes)** ||| -| Netdata Cloud | **[Netdata Demo - Machine Learning](https://app.netdata.cloud/spaces/netdata-demo/rooms/machine-learning/overview)** ||| -| Netdata Cloud | **[Netdata Demo - MS Exchange](https://app.netdata.cloud/spaces/netdata-demo/rooms/ms-exchange/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Nginx](https://app.netdata.cloud/spaces/netdata-demo/rooms/nginx/overview)** ||| -| Netdata Cloud | **[Netdata Demo - PostgreSQL](https://app.netdata.cloud/spaces/netdata-demo/rooms/postgresql/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Redis](https://app.netdata.cloud/spaces/netdata-demo/rooms/redis/overview)** ||| -| Netdata Cloud | **[Netdata Demo - Windows](https://app.netdata.cloud/spaces/netdata-demo/rooms/windows/overview)** ||| -| London (UK) | **[london3.my-netdata.io](https://london3.my-netdata.io)**<br/>(this is the global Netdata **registry** and has **named** and **mysql** charts) | [](https://london3.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | -| Atlanta (USA) | **[cdn77.my-netdata.io](https://cdn77.my-netdata.io)**<br/>(with **named** and **mysql** charts) | [](https://cdn77.my-netdata.io) | [CDN77.com](https://www.cdn77.com/) | -| Bangalore (India) | **[bangalore.my-netdata.io](https://bangalore.my-netdata.io)** | [](https://bangalore.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | -| Frankfurt (Germany) | **[frankfurt.my-netdata.io](https://frankfurt.my-netdata.io)** | [](https://frankfurt.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | -| New York (USA) | **[newyork.my-netdata.io](https://newyork.my-netdata.io)** | [](https://newyork.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | -| San Francisco (USA) | **[sanfrancisco.my-netdata.io](https://sanfrancisco.my-netdata.io)** | [](https://sanfrancisco.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | -| Singapore | **[singapore.my-netdata.io](https://singapore.my-netdata.io)** | [](https://singapore.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | -| Toronto (Canada) | **[toronto.my-netdata.io](https://toronto.my-netdata.io)** | [](https://toronto.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | +| Location | Netdata Demo URL | 60 mins reqs | VM donated by | +|:--------------------|:------------------------------------------------------------------------------------------------------------------------------------------------|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:---------------------------------------------------| +| Netdata Cloud | **[Netdata Demo - All nodes](https://app.netdata.cloud/spaces/netdata-demo/rooms/all-nodes/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Active Directory](https://app.netdata.cloud/spaces/netdata-demo/rooms/active-directory/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Apache](https://app.netdata.cloud/spaces/netdata-demo/rooms/apache/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Cassandra](https://app.netdata.cloud/spaces/netdata-demo/rooms/cassandra/overview)** | | | +| Netdata Cloud | **[Netdata Demo - CoreDNS](https://app.netdata.cloud/spaces/netdata-demo/rooms/coredns/overview)** | | | +| Netdata Cloud | **[Netdata Demo - DNS Query](https://app.netdata.cloud/spaces/netdata-demo/rooms/dns-query/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Docker](https://app.netdata.cloud/spaces/netdata-demo/rooms/docker/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Host Reachability](https://app.netdata.cloud/spaces/netdata-demo/rooms/host-reachability/overview)** | | | +| Netdata Cloud | **[Netdata Demo - HTTP Endpoints](https://app.netdata.cloud/spaces/netdata-demo/rooms/http-endpoints/overview)** | | | +| Netdata Cloud | **[Netdata Demo - IIS](https://app.netdata.cloud/spaces/netdata-demo/rooms/iis/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Kubernetes](https://app.netdata.cloud/spaces/netdata-demo/rooms/kubernetes/kubernetes)** | | | +| Netdata Cloud | **[Netdata Demo - Machine Learning](https://app.netdata.cloud/spaces/netdata-demo/rooms/machine-learning/overview)** | | | +| Netdata Cloud | **[Netdata Demo - MS Exchange](https://app.netdata.cloud/spaces/netdata-demo/rooms/ms-exchange/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Nginx](https://app.netdata.cloud/spaces/netdata-demo/rooms/nginx/overview)** | | | +| Netdata Cloud | **[Netdata Demo - PostgreSQL](https://app.netdata.cloud/spaces/netdata-demo/rooms/postgresql/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Redis](https://app.netdata.cloud/spaces/netdata-demo/rooms/redis/overview)** | | | +| Netdata Cloud | **[Netdata Demo - Windows](https://app.netdata.cloud/spaces/netdata-demo/rooms/windows/overview)** | | | +| London (UK) | **[london3.my-netdata.io](https://london3.my-netdata.io)**<br/>(this is the global Netdata **registry** and has **named** and **mysql** charts) | [](https://london3.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | +| Atlanta (USA) | **[cdn77.my-netdata.io](https://cdn77.my-netdata.io)**<br/>(with **named** and **mysql** charts) | [](https://cdn77.my-netdata.io) | [CDN77.com](https://www.cdn77.com/) | +| Bangalore (India) | **[bangalore.my-netdata.io](https://bangalore.my-netdata.io)** | [](https://bangalore.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | +| Frankfurt (Germany) | **[frankfurt.my-netdata.io](https://frankfurt.my-netdata.io)** | [](https://frankfurt.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | +| New York (USA) | **[newyork.my-netdata.io](https://newyork.my-netdata.io)** | [](https://newyork.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | +| San Francisco (USA) | **[sanfrancisco.my-netdata.io](https://sanfrancisco.my-netdata.io)** | [](https://sanfrancisco.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | +| Singapore | **[singapore.my-netdata.io](https://singapore.my-netdata.io)** | [](https://singapore.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | +| Toronto (Canada) | **[toronto.my-netdata.io](https://toronto.my-netdata.io)** | [](https://toronto.my-netdata.io) | [DigitalOcean.com](https://m.do.co/c/83dc9f941745) | Netdata dashboards are mobile- and touch-friendly. diff --git a/docs/alerts-and-notifications/notifications/README.md b/docs/alerts-and-notifications/notifications/README.md index 3368b4e1..870076b9 100644 --- a/docs/alerts-and-notifications/notifications/README.md +++ b/docs/alerts-and-notifications/notifications/README.md @@ -2,6 +2,8 @@ This section includes the documentation of the integrations for both of Netdata's notification methods. +<!-- following links are virtual links to a generated page, should not lead somewhere upon click from GitHub --> + - Netdata Cloud provides centralized alert notifications, utilizing the health status data already sent to Netdata Cloud from connected nodes to send alerts to configured integrations. [Supported integrations](/docs/alerts-&-notifications/notifications/centralized-cloud-notifications) include Amazon SNS, Discord, Slack, Splunk, and others. - The Netdata Agent offers a [wider range of notification options](/docs/alerts-&-notifications/notifications/agent-dispatched-notifications) directly from the agent itself. You can choose from over a dozen services, including email, Slack, PagerDuty, Twilio, and others, for more granular control over notifications on each node. diff --git a/docs/category-overview-pages/maintenance-operations-on-netdata-agents.md b/docs/category-overview-pages/maintenance-operations-on-netdata-agents.md index 1867d863..e989abc8 100644 --- a/docs/category-overview-pages/maintenance-operations-on-netdata-agents.md +++ b/docs/category-overview-pages/maintenance-operations-on-netdata-agents.md @@ -1,8 +1,7 @@ -# Maintenance operations on Netdata Agents Overview +# Netdata Agent Maintenance Operations Overview -This section provides information on various actions you can take while maintaining a Netdata Agent. +This section provides information on various actions to maintain a Netdata Agent: -- [Starting and Stopping Netdata Agents](/docs/netdata-agent/start-stop-restart.md) -- [Update Netdata Agents](/packaging/installer/UPDATE.md) -- [Reinstall Netdata Agents](/packaging/installer/REINSTALL.md) -- [Uninstall Netdata Agents](/packaging/installer/UNINSTALL.md) +- [Service Control](/docs/netdata-agent/start-stop-restart.md) +- [Update](/packaging/installer/UPDATE.md) +- [Uninstall](/packaging/installer/UNINSTALL.md) diff --git a/docs/category-overview-pages/working-with-logs.md b/docs/category-overview-pages/working-with-logs.md index e1f02752..d28074d2 100644 --- a/docs/category-overview-pages/working-with-logs.md +++ b/docs/category-overview-pages/working-with-logs.md @@ -6,4 +6,4 @@ The [systemd journal plugin](/src/collectors/systemd-journal.plugin/) is the cor For structured logs, Netdata provides tools like [log2journal](/src/collectors/log2journal/README.md) and [systemd-cat-native](/src/libnetdata/log/systemd-cat-native.md) to convert them into compatible systemd journal entries. -You can also find useful guides on how to set up log centralization points in the [Observability Cetralization Points](/docs/observability-centralization-points/README.md) section of our docs. +You can also find useful guides on how to set up log centralization points in the [Observability Centralization Points](/docs/observability-centralization-points/README.md) section of our docs. diff --git a/docs/dashboards-and-charts/README.md b/docs/dashboards-and-charts/README.md index 372f2030..f94d776a 100644 --- a/docs/dashboards-and-charts/README.md +++ b/docs/dashboards-and-charts/README.md @@ -35,6 +35,6 @@ You can access the dashboard at <https://app.netdata.cloud/> and [sign-in with a ### Netdata Agent -To view your Netdata dashboard, open a web browser and enter the address `http://NODE:19999` - replace `NODE` with your Agent's IP address or hostname. If the Agent is on the same machine, use http://localhost:19999. +To view your Netdata dashboard, open a web browser and enter the address `http://NODE:19999` - replace `NODE` with your Agent's IP address or hostname. If the Agent is on the same machine, use `http://localhost:19999`. Documentation for previous Agent dashboard can still be found [here](/src/web/gui/README.md). diff --git a/docs/dashboards-and-charts/alerts-tab.md b/docs/dashboards-and-charts/alerts-tab.md index 00d3efcb..66c019ec 100644 --- a/docs/dashboards-and-charts/alerts-tab.md +++ b/docs/dashboards-and-charts/alerts-tab.md @@ -45,7 +45,7 @@ At the bottom of the panel you can click the green button "View alert page" to o ### Silence an alert -From this tab, the "Silencing" column shows if there is any rule present for each alert, and from the "Actions" column you can create a new [silencing rule](/docs/alerts-and-notifications/notifications/centralized-cloud-notifications/centralized-cloud-notifications-reference.md#alert-notifications-silencing-rules) for this alert, or get help and information about this alert from the [Netdata Assistant](/docs/netdata-assistant.md). +From this tab, the "Silencing" column shows if there is any rule present for each alert, and from the "Actions" column you can create a new [silencing rule](/docs/alerts-and-notifications/notifications/centralized-cloud-notifications/centralized-cloud-notifications-reference.md#alert-notification-silencing-rules) for this alert, or get help and information about this alert from the [Netdata Assistant](/docs/netdata-assistant.md). ## Alert Configurations tab diff --git a/docs/dashboards-and-charts/anomaly-advisor-tab.md b/docs/dashboards-and-charts/anomaly-advisor-tab.md index 51b58b23..bf3243ef 100644 --- a/docs/dashboards-and-charts/anomaly-advisor-tab.md +++ b/docs/dashboards-and-charts/anomaly-advisor-tab.md @@ -1,11 +1,10 @@ # Anomaly Advisor tab -The Anomaly Advisor tab lets you focus on potentially anomalous metrics and charts related to a particular highlighted window of interest. In addition to this tab, each chart in the [Metrics tab](/docs/dashboards-and-charts/metrics-tab-and-single-node-tabs.md) also has an [Anomaly Rate ribbon](/docs/dashboards-and-charts/netdata-charts.md#anomaly-rate-ribbon). +The Anomaly Advisor tab lets you focus on potentially anomalous metrics and charts related to a particular highlighted window of interest. In addition to this tab, each chart in the [Metrics tab](/docs/dashboards-and-charts/metrics-tab-and-single-node-tabs.md) also has an [Anomaly Rate ribbon](/docs/dashboards-and-charts/netdata-charts.md#anomaly-rate-ribbon). +More details about configuration can be found in the [ML documentation](/src/ml/README.md). -More details about configuration can be found in the [ML documentation](/src/ml/README.md#configuration). - -This tab uses our [Anomaly Rate ML feature](/src/ml/README.md#anomaly-rate---averageanomaly-bit) to score metrics in terms of anomalous behavior. +This tab uses our [Anomaly Rate ML feature](/src/ml/README.md#anomaly-bit) to score metrics in terms of anomalous behavior. - The "Anomaly Rate" chart shows the percentage of anomalous metrics over time per node. diff --git a/docs/dashboards-and-charts/events-feed.md b/docs/dashboards-and-charts/events-feed.md index a5386e80..34d6ee0e 100644 --- a/docs/dashboards-and-charts/events-feed.md +++ b/docs/dashboards-and-charts/events-feed.md @@ -66,8 +66,8 @@ All users will be able to see events from the Topology and Alerts domain but Aud ## How to use the events feed 1. Click on the **Events** tab (located near the top of your screen) -1. You will be presented with a table listing the events that occurred from the timeframe defined on the [date time picker](/docs/dashboards-and-charts/visualization-date-and-time-controls.md#date-and-time-selector) -1. You can use the filtering capabilities available on right-hand bar to slice through the results provided. See more details on [event types and filters](#event-types-and-filters) +2. You will be presented with a table listing the events that occurred from the timeframe defined on the [date time picker](/docs/dashboards-and-charts/visualization-date-and-time-controls.md#date-and-time-selector) +3. You can use the filtering capabilities available on right-hand bar to slice through the results provided > **Note** > diff --git a/docs/dashboards-and-charts/import-export-print-snapshot.md b/docs/dashboards-and-charts/import-export-print-snapshot.md index 80bf514a..f2df15da 100644 --- a/docs/dashboards-and-charts/import-export-print-snapshot.md +++ b/docs/dashboards-and-charts/import-export-print-snapshot.md @@ -1,22 +1,7 @@ -<!-- -title: "Import, export, and print a snapshot" -description: >- - "Snapshots can be incredibly useful for diagnosing anomalies after - they've already happened, and are interoperable with any other node - running Netdata." -type: "how-to" -custom_edit_url: "/docs/dashboards-and-charts/import-export-print-snapshot.md" -sidebar_label: "Import, export, and print a snapshot" -learn_status: "Published" -learn_topic_type: "Tasks" -learn_rel_path: "Operations" ---> - # Import, export, and print a snapshot >❗This feature is only available on v1 dashboards, it hasn't been port-forwarded to v2. -> For more information on accessing dashboards check [this documentation](/docs/dashboards-and-charts/README.md). - +> For more information on accessing dashboards check [this documentation](/docs/dashboards-and-charts/README.md). Netdata can export snapshots of the contents of your dashboard at a given time, which you can then import into any other node running Netdata. Or, you can create a print-ready version of your dashboard to save to PDF or actually print to @@ -44,7 +29,7 @@ Select the Netdata snapshot file to import. Once the file is loaded, the modal u snapshot and the system from which it was taken. Click **Import** to begin to process. Netdata takes the data embedded inside the snapshot and re-creates a static replica on your dashboard. When the import -finishes, you're free to move around and examine the charts. +finishes, you're free to move around and examine the charts. Some caveats and tips to keep in mind: diff --git a/docs/dashboards-and-charts/kubernetes-tab.md b/docs/dashboards-and-charts/kubernetes-tab.md index 9b5df87d..3289615f 100644 --- a/docs/dashboards-and-charts/kubernetes-tab.md +++ b/docs/dashboards-and-charts/kubernetes-tab.md @@ -27,7 +27,6 @@ Netdata Cloud organizes and visualizes the following metrics from your Kubernete | `k8s.cgroup.net_net` | Sum of `received` and `sent` bandwidth per second. | | `k8s.cgroup.net_packets` | Sum of `multicast`, `received`, and `sent` packets. | - When viewing the [overview of this dashboard](#kubernetes-containers-overview), Netdata presents the above metrics per container, or aggregated based on their associated pods. diff --git a/docs/dashboards-and-charts/netdata-charts.md b/docs/dashboards-and-charts/netdata-charts.md index 5536f83b..c7563aa2 100644 --- a/docs/dashboards-and-charts/netdata-charts.md +++ b/docs/dashboards-and-charts/netdata-charts.md @@ -19,14 +19,14 @@ These charts provide a lot of useful information, so that you can: - View individual metric collection status about a chart These charts are available on Netdata Cloud's -[Metrics tab](/docs/dashboards-and-charts/metrics-tab-and-single-node-tabs.md), [single sode tabs](/docs/dashboards-and-charts/metrics-tab-and-single-node-tabs.md) and +[Metrics tab](/docs/dashboards-and-charts/metrics-tab-and-single-node-tabs.md), [single node tabs](/docs/dashboards-and-charts/metrics-tab-and-single-node-tabs.md) and on your [Custom Dashboards](/docs/dashboards-and-charts/dashboards-tab.md). ## Overview A Netdata chart looks like this: -<img src="https://user-images.githubusercontent.com/70198089/236133212-353c102f-a6ed-45b7-9251-34e004c7a10a.png" width="900"/> +<img src="https://user-images.githubusercontent.com/70198089/236133212-353c102f-a6ed-45b7-9251-34e004c7a10a.png" width="900" alt="A Netdata Chart"/> With a quick glance you have immediate information available at your disposal: @@ -37,7 +37,7 @@ With a quick glance you have immediate information available at your disposal: - [Chart area](#hover-over-the-chart) - [Legend with dimensions](#dimensions-bar) -## Fundemental elements +## Fundamental elements While Netdata's charts require no configuration and are easy to interact with, they have a lot of underlying complexity. To meaningfully organize charts out of the box based on what's happening in your nodes, Netdata uses the concepts of [dimensions](#dimensions), [contexts](#contexts), and [families](#families). @@ -100,7 +100,7 @@ names: When you start interacting with a chart, you'll notice valuable information on the Title bar: -<img src="https://github.com/netdata/netdata/assets/70198089/75d700de-bc7d-4b96-b73d-7b248b83afea" width="900"/> +<img src="https://github.com/netdata/netdata/assets/70198089/75d700de-bc7d-4b96-b73d-7b248b83afea" width="900" alt="Netdata Chart Title bar"/> Title bar elements: @@ -110,8 +110,7 @@ Title bar elements: Along with viewing chart type, context and units, on this bar you have access to immediate actions over the chart: - -<img src="https://github.com/netdata/netdata/assets/70198089/d21f326e-065c-4a08-bee9-69ad23736e38" width="200" /> +<img src="https://github.com/netdata/netdata/assets/70198089/d21f326e-065c-4a08-bee9-69ad23736e38" width="200" alt="Netdata Chart Title bar immediate actions"/> - **Manage Alerts**: manage [Alert configurations](/docs/dashboards-and-charts/alerts-tab.md#alert-configurations-tab) for this chart. - **Chart info**: get more information relevant to the chart you are interacting with. @@ -119,14 +118,14 @@ Along with viewing chart type, context and units, on this bar you have access to - **Enter fullscreen mode**: expand the current chart to the full size of your screen. - **User settings**: save your settings for the chart at hand, so it persists across dashboard reloads. - Personal has the top priority. - - Room and Space settings for a chart are shared across all users who don't have personal settings for it. + - Room and Space settings for a chart are shared across all users who don't have personal settings for it. - **Drag and Drop the chart to a Dashboard**: add the chart to an existing custom [Dashboard](/docs/dashboards-and-charts/dashboards-tab.md) or directly create a new one that includes the chart. ## Definition bar Each composite chart has a definition bar to provide information and options about the following: -<img src="https://user-images.githubusercontent.com/70198089/236134615-e53a1d68-8a0f-466b-b2ef-1974085f0e8d.png" width="900"/> +<img src="https://user-images.githubusercontent.com/70198089/236134615-e53a1d68-8a0f-466b-b2ef-1974085f0e8d.png" width="900" alt="Netdata Chart Definition bar"/> - Group by option - Aggregate function to be applied in case multiple data sources exist @@ -145,14 +144,14 @@ To help users instantly understand and validate the data they see on charts, we > allowing you to zoom in to the different parts of it. > > <a href="https://user-images.githubusercontent.com/2662304/235475061-44628011-3b1f-4c44-9528-34452018eb89.png" target="_blank"> -> <img src="https://user-images.githubusercontent.com/2662304/235475061-44628011-3b1f-4c44-9528-34452018eb89.png" width="400" border="0" align="center"/> +> <img src="https://user-images.githubusercontent.com/2662304/235475061-44628011-3b1f-4c44-9528-34452018eb89.png" width="400" border="0" align="center" alt="Netdata NIDL Framework"/> > </a> You can rapidly access condensed information for collected metrics, grouped by node, monitored instances, dimension, or any key/value label pair. At the Definition bar of each chart, there are a few dropdown menus: -<img src="https://user-images.githubusercontent.com/43294513/235470150-62a3b9ac-51ca-4c0d-81de-8804e3d733eb.png" width="900"/> +<img src="https://user-images.githubusercontent.com/43294513/235470150-62a3b9ac-51ca-4c0d-81de-8804e3d733eb.png" width="900" alt="Netdata Chart NIDL Dropdown menus"/> These dropdown menus have 2 functions: @@ -171,7 +170,7 @@ All of these dropdown menus can be used for instantly filtering the information The "Group by" dropdown menu allows selecting 1 or more groupings to be applied at once on the same dataset. -<img src="https://user-images.githubusercontent.com/43294513/235468819-3af5a1d3-8619-48fb-a8b7-8e8b4cf6a8ff.png" width="900"/> +<img src="https://user-images.githubusercontent.com/43294513/235468819-3af5a1d3-8619-48fb-a8b7-8e8b4cf6a8ff.png" width="900" alt="Netdata Chart Group by dropdown"/> It supports: @@ -188,7 +187,7 @@ Using this menu, you can slice and dice the data in any possible way, to quickly > You have the means to change the default group by or apply filtering to get a better view into what data your are trying to analyze. > For example, if you change the group by to _instance_ you get a view with the data of all the instances (cgroups) that contribute to that chart. > Then you can use further filtering tools to focus the data that is important to you and even save the result to your own dashboards. - +> > ### Tip > > Group by instance, dimension to see the time series of every individual collected metric participating in the chart. @@ -197,7 +196,7 @@ Using this menu, you can slice and dice the data in any possible way, to quickly Each chart uses an opinionated-but-valuable default aggregate function over the data sources. -<img src="https://user-images.githubusercontent.com/70198089/236136725-778670b4-7e81-44a8-8d3d-f38ded823c94.png" width="500"/> +<img src="https://user-images.githubusercontent.com/70198089/236136725-778670b4-7e81-44a8-8d3d-f38ded823c94.png" width="500" alt="Netdata Chart Aggregate functions over data"/> For example, the `system.cpu` chart shows the average for each dimension from every contributing chart, while the `net.net` chart shows the sum for each dimension from every contributing chart, which can also come from multiple networking interfaces. @@ -218,7 +217,7 @@ The following aggregate functions are available for each selected dimension: In this dropdown, you can view or filter the nodes contributing time-series metrics to the chart. This menu also provides the contribution of each node to the volume of the chart, and a break down of the anomaly rate of the queried data per node. -<img src="https://user-images.githubusercontent.com/70198089/236137765-b57d5443-3d4b-42f4-9e3d-db1eb606626f.png" width="900"/> +<img src="https://user-images.githubusercontent.com/70198089/236137765-b57d5443-3d4b-42f4-9e3d-db1eb606626f.png" width="900" alt="Netdata Chart Nodes dropdown"/> If one or more nodes can't contribute to a given chart, the definition bar shows a warning symbol plus the number of affected nodes, then lists them in the dropdown along with the associated error. Nodes might return errors because of @@ -229,38 +228,38 @@ networking issues, a stopped `netdata` service, or because that node does not ha In this dropdown, you can view or filter the instances contributing time-series metrics to the chart. This menu also provides the contribution of each instance to the volume of the chart, and a break down of the anomaly rate of the queried data per instance. -<img src="https://user-images.githubusercontent.com/70198089/236138302-4dd4072e-3a0d-43bb-a9d8-4dde79c65e92.png" width="900"/> +<img src="https://user-images.githubusercontent.com/70198089/236138302-4dd4072e-3a0d-43bb-a9d8-4dde79c65e92.png" width="900" alt="Netdata Chart Instances dropdown"/> ### Dimensions dropdown In this dropdown, you can view or filter the original dimensions contributing time-series metrics to the chart. This menu also presents the contribution of each original dimensions on the chart, and a break down of the anomaly rate of the data per dimension. -<img src="https://user-images.githubusercontent.com/70198089/236138796-08dc6ac6-9a50-4913-a46d-d9bbcedd48f6.png" width="900"/> +<img src="https://user-images.githubusercontent.com/70198089/236138796-08dc6ac6-9a50-4913-a46d-d9bbcedd48f6.png" width="900" alt="Netdata Chart Dimensions Dropdown"/> ### Labels dropdown In this dropdown, you can view or filter the contributing time-series labels of the chart. This menu also presents the contribution of each label on the chart,and a break down of the anomaly rate of the data per label. -<img src="https://user-images.githubusercontent.com/70198089/236139027-8a51a958-2074-4675-a41b-efff30d8f51a.png" width="900"/> +<img src="https://user-images.githubusercontent.com/70198089/236139027-8a51a958-2074-4675-a41b-efff30d8f51a.png" width="900" alt="Netdata Chart Labels Dropdown"/> ### Aggregate functions over time When the granularity of the data collected is higher than the plotted points on the chart an aggregation function over time is applied. -<img src="https://user-images.githubusercontent.com/70198089/236411297-e123db06-0117-4e24-a5ac-955b980a8f55.png" width="400"/> +<img src="https://user-images.githubusercontent.com/70198089/236411297-e123db06-0117-4e24-a5ac-955b980a8f55.png" width="400" alt="Netdata Chart Aggregate functions over time"/> By default the aggregation applied is _average_ but the user can choose different options from the following: - Min, Max, Average or Sum - Percentile - you can specify the percentile you want to focus on: 25th, 50th, 75th, 80th, 90th, 95th, 97th, 98th and 99th. - <img src="https://user-images.githubusercontent.com/70198089/236410299-de5f3367-f3b0-4beb-a73f-a49007c543d4.png" width="250"/> + <img src="https://user-images.githubusercontent.com/70198089/236410299-de5f3367-f3b0-4beb-a73f-a49007c543d4.png" width="250" alt="Netdata Chart Aggregate functions over time Percentile selection"/> - Trimmed Mean or Trimmed Median - you can choose the percentage of data tha you want to focus on: 1%, 2%, 3%, 5%, 10%, 15%, 20% and 25%. - <img src="https://user-images.githubusercontent.com/70198089/236410858-74b46af9-280a-4ab2-ad26-5a6aa9403aa8.png" width="250"/> + <img src="https://user-images.githubusercontent.com/70198089/236410858-74b46af9-280a-4ab2-ad26-5a6aa9403aa8.png" width="250" alt="Netdata Chart Aggregate functions over time Trimmed Mean or Median selection"/> - Median - Standard deviation - Coefficient of variation @@ -280,7 +279,7 @@ It then uses these unique models during data collection to predict the value tha If the value collected is an outlier, it is marked as anomalous. -<img src="https://user-images.githubusercontent.com/70198089/236139886-79d63cf6-61ed-4aa7-842c-b5a1728c870d.png" width="900"/> +<img src="https://user-images.githubusercontent.com/70198089/236139886-79d63cf6-61ed-4aa7-842c-b5a1728c870d.png" width="900" alt="Netdata Chart Anomaly Rate Ribbon"/> This unmatched capability of real-time predictions as data is collected allows you to **detect anomalies for potentially millions of metrics across your entire infrastructure within a second of occurrence**. @@ -297,29 +296,29 @@ It includes a bar indicating the volume percentage of each time series compared This overlay sorts all dimensions by value, makes bold the closest dimension to the mouse and presents a histogram based on the values of the dimensions. -<img src="https://user-images.githubusercontent.com/70198089/236141460-bfa66b99-d63c-4a2c-84b1-2509ed94857f.png" width="500"/> +<img src="https://user-images.githubusercontent.com/70198089/236141460-bfa66b99-d63c-4a2c-84b1-2509ed94857f.png" width="500" alt="Netdata Chart Hover over Chart"/> When hovering the anomaly ribbon, the overlay sorts all dimensions by anomaly rate, and presents a histogram of these anomaly rates. -#### Info column +### Info column Additionally, when hovering over the chart, the overlay may display an indication in the "Info" column. Currently, this column is used to inform users of any data collection issues that might affect the chart. Below each chart, there is an information ribbon. This ribbon currently shows 3 states related to the points presented in the chart: -1. **[P]: Partial Data** +1. **Partial Data** At least one of the dimensions in the chart has partial data, meaning that not all instances available contributed data to this point. This can happen when a container is stopped, or when a node is restarted. This indicator helps to gain confidence of the dataset, in situations when unusual spikes or dives appear due to infrastructure maintenance, or due to failures to part of the infrastructure. -2. **[O]: Overflown** +2. **Overflown** At least one of the data sources included in the chart has a counter that has overflowed at this point. -3. **[E]: Empty Data** +3. **Empty Data** At least one of the dimensions included in the chart has no data at all for the given points. All these indicators are also visualized per dimension, in the pop-over that appears when hovering the chart. -<img src="https://user-images.githubusercontent.com/70198089/236145768-8ffadd02-93a4-4e9e-b4ae-c1367f614a7e.png" width="700"/> +<img src="https://user-images.githubusercontent.com/70198089/236145768-8ffadd02-93a4-4e9e-b4ae-c1367f614a7e.png" width="700" alt="Netdata Chart Hover over the chart Info Column"/> ## Play, Pause and Reset @@ -346,7 +345,7 @@ Note: These interactions are available when the default "Pan" action is used fro While exploring the chart, a tool bar will appear. This tool bar is there to support you on this task. The available manipulation tools you can select are: -<img src="https://user-images.githubusercontent.com/70198089/236143292-c1d75528-263d-4ddd-9db8-b8d6a31cb83e.png" width="400" /> +<img src="https://user-images.githubusercontent.com/70198089/236143292-c1d75528-263d-4ddd-9db8-b8d6a31cb83e.png" width="400" alt="Netdata Chart Tool bar"/> - Pan - Highlight @@ -382,10 +381,10 @@ Selecting timeframes is useful when you see an interesting spike or change in a You can zoom to a specific timeframe, either horizontally of vertically, by selecting a timeframe. -| Interaction | Keyboard/mouse | Touchpad/touchscreen | -|:-------------------------------------------|:-------------------------------------|:-----------------------------------------------------| -| **Zoom** to a specific timeframe | `Shift + mouse vertical selection` | `n/a` | -| **Horizontal Zoom** a specific Y-axis area | `Shift + mouse horizontal selection` | `n/a` | +| Interaction | Keyboard/mouse | Touchpad/touchscreen | +|:-------------------------------------------|:-------------------------------------|:---------------------| +| **Zoom** to a specific timeframe | `Shift + mouse vertical selection` | `n/a` | +| **Horizontal Zoom** a specific Y-axis area | `Shift + mouse horizontal selection` | `n/a` | ### Chart zoom @@ -394,9 +393,9 @@ of an anomaly or outage. Zooming out lets you see metrics within the larger context, such as the last hour, day, or week, which is useful in understanding what "normal" looks like, or to identify long-term trends, like a slow creep in memory usage. -| Interaction | Keyboard/mouse | Touchpad/touchscreen | -|:-------------------------------------------|:-------------------------------------|:-----------------------------------------------------| -| **Zoom** in or out | `Shift + mouse scrollwheel` | `two-finger pinch` <br />`Shift + two-finger scroll` | +| Interaction | Keyboard/mouse | Touchpad/touchscreen | +|:-------------------|:----------------------------|:-----------------------------------------------------| +| **Zoom** in or out | `Shift + mouse scrollwheel` | `two-finger pinch` <br />`Shift + two-finger scroll` | ## Dimensions bar @@ -404,7 +403,7 @@ Zooming out lets you see metrics within the larger context, such as the last hou The bottom legend where you can see the dimensions of the chart can be ordered by: -<img src="https://user-images.githubusercontent.com/70198089/236144658-6c3d0e31-9bcb-45f3-bb95-4eafdcbb0a58.png" width="300" /> +<img src="https://user-images.githubusercontent.com/70198089/236144658-6c3d0e31-9bcb-45f3-bb95-4eafdcbb0a58.png" width="300" alt="Netdata Chart order dimensions legend"/> - Dimension name (Ascending or Descending) - Dimension value (Ascending or Descending) diff --git a/docs/dashboards-and-charts/themes.md b/docs/dashboards-and-charts/themes.md index 0ca7425a..bdce5db6 100644 --- a/docs/dashboards-and-charts/themes.md +++ b/docs/dashboards-and-charts/themes.md @@ -12,4 +12,3 @@ tab, and then choose your preferred theme: **Light** or **Dark**. **Light**:  - diff --git a/docs/dashboards-and-charts/top-tab.md b/docs/dashboards-and-charts/top-tab.md index 4edaf32f..6b96010a 100644 --- a/docs/dashboards-and-charts/top-tab.md +++ b/docs/dashboards-and-charts/top-tab.md @@ -6,7 +6,7 @@ They can be used to retrieve additional information to help you troubleshoot or > **Tip** > > You can also execute a Function from the [Nodes tab](/docs/dashboards-and-charts/nodes-tab.md), by pressing the `f(x)` button. - +> > **Note** > > If you get an error saying that your node can't execute Functions please check the [prerequisites](/docs/top-monitoring-netdata-functions.md#prerequisites). diff --git a/docs/deployment-guides/deployment-strategies.md b/docs/deployment-guides/deployment-strategies.md index 1a3c6716..5c7afda2 100644 --- a/docs/deployment-guides/deployment-strategies.md +++ b/docs/deployment-guides/deployment-strategies.md @@ -32,7 +32,7 @@ In this example, Machine Learning and Alerting are disabled for the Child, so th ##### netdata.conf -On the child node, edit `netdata.conf` by using the [edit-config](/docs/netdata-agent/configuration/README.md#edit-netdataconf) script and set the following parameters: +On the child node, edit `netdata.conf` by using the [edit-config](/docs/netdata-agent/configuration/README.md#edit-a-configuration-file-using-edit-config) script and set the following parameters: ```yaml [db] @@ -63,7 +63,7 @@ On the child node, edit `netdata.conf` by using the [edit-config](/docs/netdata- ##### stream.conf -To edit `stream.conf`, use again the [edit-config](/docs/netdata-agent/configuration/README.md#edit-netdataconf) script and set the following parameters: +To edit `stream.conf`, use again the [edit-config](/docs/netdata-agent/configuration/README.md#edit-a-configuration-file-using-edit-config) script and set the following parameters: ```yaml [stream] @@ -77,7 +77,7 @@ To edit `stream.conf`, use again the [edit-config](/docs/netdata-agent/configura #### Parent config -For the Parent, besides setting up streaming, this example also provides configuration for multiple [tiers of metrics storage](/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md#calculate-the-system-resources-ram-disk-space-needed-to-store-metrics), for 10 Children, with about 2k metrics each. This allows for: +For the Parent, besides setting up streaming, this example also provides configuration for multiple [tiers of metrics storage](/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md), for 10 Children, with about 2k metrics each. This allows for: - 1s granularity at tier 0 for 1 week - 1m granularity at tier 1 for 1 month @@ -90,28 +90,23 @@ Requiring: ##### netdata.conf -On the Parent, edit `netdata.conf` by using the [edit-config](/docs/netdata-agent/configuration/README.md#edit-netdataconf) script and set the following parameters: +On the Parent, edit `netdata.conf` by using the [edit-config](/docs/netdata-agent/configuration/README.md#edit-a-configuration-file-using-edit-config) script and set the following parameters: ```yaml [db] mode = dbengine + dbengine tier backfill = new storage tiers = 3 - # To allow memory pressure to offload index from ram - dbengine page descriptors in file mapped memory = yes + dbengine page cache size = 1.4GiB # storage tier 0 update every = 1 - dbengine multihost disk space MB = 12000 - dbengine page cache size MB = 1400 + dbengine tier 0 retention space = 12GiB # storage tier 1 - dbengine tier 1 page cache size MB = 512 - dbengine tier 1 multihost disk space MB = 4096 dbengine tier 1 update every iterations = 60 - dbengine tier 1 backfill = new + dbengine tier 1 retention space = 4GiB # storage tier 2 - dbengine tier 2 page cache size MB = 128 - dbengine tier 2 multihost disk space MB = 2048 dbengine tier 2 update every iterations = 60 - dbengine tier 2 backfill = new + dbengine tier 2 retention space = 2GiB [ml] # Enabled by default # enabled = yes @@ -125,7 +120,7 @@ On the Parent, edit `netdata.conf` by using the [edit-config](/docs/netdata-agen ##### stream.conf -On the Parent node, edit `stream.conf` by using the [edit-config](/docs/netdata-agent/configuration/README.md#edit-netdataconf) script and set the following parameters: +On the Parent node, edit `stream.conf` by using the [edit-config](/docs/netdata-agent/configuration/README.md#edit-a-configuration-file-using-edit-config) script and set the following parameters: ```yaml [API_KEY] @@ -137,7 +132,7 @@ On the Parent node, edit `stream.conf` by using the [edit-config](/docs/netdata- In order to setup active–active streaming between Parent 1 and Parent 2, Parent 1 needs to be instructed to stream data to Parent 2 and Parent 2 to stream data to Parent 1. The Child Agents need to be configured with the addresses of both Parent Agents. An Agent will only connect to one Parent at a time, falling back to the next upon failure. These examples use the same API key between Parent Agents and for connections for Child Agents. -On both Netdata Parent and all Child Agents, edit `stream.conf` by using the [edit-config](/docs/netdata-agent/configuration/README.md#edit-netdataconf) script: +On both Netdata Parent and all Child Agents, edit `stream.conf` by using the [edit-config](/docs/netdata-agent/configuration/README.md#edit-a-configuration-file-using-edit-config) script: #### stream.conf on Parent 1 diff --git a/docs/developer-and-contributor-corner/README.md b/docs/developer-and-contributor-corner/README.md index d4d86382..81793812 100644 --- a/docs/developer-and-contributor-corner/README.md +++ b/docs/developer-and-contributor-corner/README.md @@ -1,3 +1,3 @@ # Developer and Contributor Corner -In this section of our Documentation you will find more advanced information, suited for developers and contributors alike.
\ No newline at end of file +In this section of our Documentation you will find more advanced information, suited for developers and contributors alike. diff --git a/docs/developer-and-contributor-corner/build-the-netdata-agent-yourself.md b/docs/developer-and-contributor-corner/build-the-netdata-agent-yourself.md index 99166ad9..d98784cc 100644 --- a/docs/developer-and-contributor-corner/build-the-netdata-agent-yourself.md +++ b/docs/developer-and-contributor-corner/build-the-netdata-agent-yourself.md @@ -1,3 +1,3 @@ # Build the Netdata Agent yourself -This section contains documentation on all the ways that you can build the Netdata Agent.
\ No newline at end of file +This section contains documentation on all the ways that you can build the Netdata Agent. diff --git a/docs/developer-and-contributor-corner/collect-apache-nginx-web-logs.md b/docs/developer-and-contributor-corner/collect-apache-nginx-web-logs.md index 55af82fb..9a307b0b 100644 --- a/docs/developer-and-contributor-corner/collect-apache-nginx-web-logs.md +++ b/docs/developer-and-contributor-corner/collect-apache-nginx-web-logs.md @@ -81,18 +81,13 @@ jobs: log_type: auto ``` -Restart Netdata with `sudo systemctl restart netdata`, or the [appropriate -method](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) for your system. Netdata should pick up your web server's access log and -begin showing real-time charts! +Restart Netdata with `sudo systemctl restart netdata`, or the [appropriate method](/docs/netdata-agent/start-stop-restart.md) for your system. Netdata should pick up your web server's access log and begin showing real-time charts! ### Custom log formats and fields -The web log collector is capable of parsing custom Nginx and Apache log formats and presenting them as charts, but we'll -leave that topic for a separate guide. +The web log collector is capable of parsing custom Nginx and Apache log formats and presenting them as charts, but we'll leave that topic for a separate guide. -We do have [extensive -documentation](/src/go/plugin/go.d/modules/weblog/README.md#custom-log-format) on how -to build custom parsing for Nginx and Apache logs. +We do have [extensive documentation](/src/go/plugin/go.d/modules/weblog/README.md) on how to build custom parsing for Nginx and Apache logs. ## Tweak web log collector alerts @@ -100,7 +95,7 @@ Over time, we've created some default alerts for web log monitoring. These alert web server is receiving more than 120 requests per minute. Otherwise, there's simply not enough data to make conclusions about what is "too few" or "too many." -- [web log alerts](https://raw.githubusercontent.com/netdata/netdata/master/src/health/health.d/web_log.conf). +- [web log alerts](https://raw.githubusercontent.com/netdata/netdata/master/src/health/health.d/web_log.conf). You can also edit this file directly with `edit-config`: @@ -108,5 +103,5 @@ You can also edit this file directly with `edit-config`: ./edit-config health.d/weblog.conf ``` -For more information about editing the defaults or writing new alert entities, see our +For more information about editing the defaults or writing new alert entities, see our [health monitoring documentation](/src/health/README.md). diff --git a/docs/developer-and-contributor-corner/collect-unbound-metrics.md b/docs/developer-and-contributor-corner/collect-unbound-metrics.md index ac997b7f..abfaca72 100644 --- a/docs/developer-and-contributor-corner/collect-unbound-metrics.md +++ b/docs/developer-and-contributor-corner/collect-unbound-metrics.md @@ -1,13 +1,3 @@ -<!-- -title: "Monitor Unbound DNS servers with Netdata" -sidebar_label: "Monitor Unbound DNS servers with Netdata" -date: 2020-03-31 -custom_edit_url: https://github.com/netdata/netdata/edit/master/docs/guides/collect-unbound-metrics.md -learn_status: "Published" -learn_topic_type: "Tasks" -learn_rel_path: "Miscellaneous" ---> - # Monitor Unbound DNS servers with Netdata [Unbound](https://nlnetlabs.nl/projects/unbound/about/) is a "validating, recursive, caching DNS resolver" from NLNet @@ -35,7 +25,7 @@ the TLS key files that will encrypt connections to the remote interface. Then ad documentation](https://nlnetlabs.nl/documentation/unbound/howto-setup/#setup-remote-control) for more details on using `unbound-control`, such as how to handle situations when Unbound is run under a unique user. -```conf +```text # enable remote-control remote-control: control-enable: yes @@ -137,5 +127,3 @@ Now that you're collecting metrics from your Unbound servers, let us know how it for improvement or refinement based on real-world use cases. Feel free to [file an issue](https://github.com/netdata/netdata/issues/new?assignees=&labels=bug%2Cneeds+triage&template=BUG_REPORT.yml) with your thoughts. - - diff --git a/docs/developer-and-contributor-corner/customize.md b/docs/developer-and-contributor-corner/customize.md index 03a6a842..7d9895dc 100644 --- a/docs/developer-and-contributor-corner/customize.md +++ b/docs/developer-and-contributor-corner/customize.md @@ -1,15 +1,15 @@ # Customize the standard dashboard -> ### Disclaimer +> **Disclaimer** > > This document is only applicable to the v1 version of the dashboard and doesn't affect the [Netdata Dashboard](/docs/dashboards-and-charts/README.md). -While the [Netdata dashboard](/src/web/gui/README.md) comes preconfigured with hundreds of charts and +While the [Netdata dashboard](/src/web/gui/README.md) comes pre-configured with hundreds of charts and thousands of metrics, you may want to alter your experience based on a particular use case or preferences. ## Dashboard settings -To change dashboard settings, click the on the **settings** icon +To change dashboard settings, click the on the **settings** icon  in the top panel. @@ -21,10 +21,9 @@ Here are a few popular settings: ### Change chart legend position -Find this setting under the **Visual** tab. By default, Netdata places the legend of dimensions _below_ charts. +Find this setting under the **Visual** tab. By default, Netdata places the legend of dimensions _below_ charts. Click this toggle to move the legend to the _right_ of charts. - ### Change theme Find this setting under the **Visual** tab. Choose between Dark (the default) and White. @@ -67,9 +66,9 @@ dashboard. Save the file, then navigate to your [Netdata config directory](/docs/netdata-agent/configuration/README.md) to edit `netdata.conf`. Add the following line to the `[web]` section to tell Netdata where to find your custom configuration. -```conf +```text [web] custom dashboard_info.js = your_dashboard_info_file.js ``` -Reload your browser tab to see your custom configuration.
\ No newline at end of file +Reload your browser tab to see your custom configuration. diff --git a/docs/developer-and-contributor-corner/kubernetes-k8s-netdata.md b/docs/developer-and-contributor-corner/kubernetes-k8s-netdata.txt index 011aac8d..5ebb963c 100644 --- a/docs/developer-and-contributor-corner/kubernetes-k8s-netdata.md +++ b/docs/developer-and-contributor-corner/kubernetes-k8s-netdata.txt @@ -19,7 +19,7 @@ troubleshoot issues with your cluster. Some k8s providers, like GKE (Google Kubernetes Engine), do deploy clusters bundled with monitoring capabilities, such as Google Stackdriver Monitoring. However, these pre-configured solutions might not offer the depth of metrics, -customization, or integration with your preferred alerting methods. +customization, or integration with your preferred alerting methods. Without this visibility, it's like you built an entire house and _then_ smashed your way through the finished walls to add windows. @@ -35,15 +35,15 @@ navigation and best practices are the same for every cluster. To follow this tutorial, you need: -- A free Netdata Cloud account. [Sign up](https://app.netdata.cloud/sign-up?cloudRoute=/spaces) if you don't have one +- A free Netdata Cloud account. [Sign up](https://app.netdata.cloud/sign-up?cloudRoute=/spaces) if you don't have one already. -- A working cluster running Kubernetes v1.9 or newer, with a Netdata deployment and connected parent/child nodes. See +- A working cluster running Kubernetes v1.9 or newer, with a Netdata deployment and connected parent/child nodes. See our [Kubernetes deployment process](/packaging/installer/methods/kubernetes.md) for details on deployment and - conneting to Cloud. -- The [`kubectl`](https://kubernetes.io/docs/reference/kubectl/overview/) command line tool, within [one minor version + connecting to Cloud. +- The [`kubectl`](https://kubernetes.io/docs/reference/kubectl/overview/) command line tool, within [one minor version difference](https://kubernetes.io/docs/tasks/tools/install-kubectl/#before-you-begin) of your cluster, on an administrative system. -- The [Helm package manager](https://helm.sh/) v3.0.0 or newer on the same administrative system. +- The [Helm package manager](https://helm.sh/) v3.0.0 or newer on the same administrative system. ### Install the `robot-shop` demo (optional) @@ -112,7 +112,6 @@ cluster](https://user-images.githubusercontent.com/1153921/109042169-19c8fa00-76 For example, the chart above shows a spike in the CPU utilization from `rabbitmq` every minute or so, along with a baseline CPU utilization of 10-15% across the cluster. - ## Pod and container metrics Click on the **Kubernetes xxxxxxx...** section to jump down to Netdata Cloud's unique Kubernetes visualizations for view @@ -233,5 +232,3 @@ clusters of all sizes. - [Netdata Agent · `kube-proxy` collector](/src/go/plugin/go.d/modules/k8s_kubeproxy/README.md) - [Netdata Agent · `cgroups.plugin`](/src/collectors/cgroups.plugin/README.md) - - diff --git a/docs/developer-and-contributor-corner/lamp-stack.md b/docs/developer-and-contributor-corner/lamp-stack.txt index 2df5a716..bc4611ac 100644 --- a/docs/developer-and-contributor-corner/lamp-stack.md +++ b/docs/developer-and-contributor-corner/lamp-stack.txt @@ -104,8 +104,7 @@ GRANT USAGE, REPLICATION CLIENT, PROCESS ON *.* TO 'netdata'@'localhost'; FLUSH PRIVILEGES; ``` -Run `sudo systemctl restart netdata`, or the [appropriate alternative for your -system](/packaging/installer/README.md#maintaining-a-netdata-agent-installation), to collect dozens of metrics every second for robust MySQL monitoring. +Run `sudo systemctl restart netdata`, or the [appropriate alternative for your system](/docs/netdata-agent/start-stop-restart.md), to collect dozens of metrics every second for robust MySQL monitoring. ## Enable PHP monitoring @@ -125,7 +124,7 @@ sudo nano /etc/php/7.4/fpm/pool.d/www.conf Find the line that reads `;pm.status_path = /status` and remove the `;` so it looks like this: -```conf +```text pm.status_path = /status ``` diff --git a/docs/developer-and-contributor-corner/monitor-cockroachdb.md b/docs/developer-and-contributor-corner/monitor-cockroachdb.txt index f0db12cc..d677c376 100644 --- a/docs/developer-and-contributor-corner/monitor-cockroachdb.md +++ b/docs/developer-and-contributor-corner/monitor-cockroachdb.txt @@ -37,8 +37,8 @@ configuring CockroachDB. Netdata only needs to regularly query the database's `_ display them on the dashboard. If your CockroachDB instance is accessible through `http://localhost:8080/` or `http://127.0.0.1:8080`, your setup is -complete. Restart Netdata with `sudo systemctl restart netdata`, or the [appropriate -method](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) for your system, and refresh your browser. You should see CockroachDB +complete. Restart Netdata with `sudo systemctl restart netdata`, or the appropriate +method for your system, and refresh your browser. You should see CockroachDB metrics in your Netdata dashboard! <figure> diff --git a/docs/developer-and-contributor-corner/monitor-debug-applications-ebpf.md b/docs/developer-and-contributor-corner/monitor-debug-applications-ebpf.md index 91d2a2ef..56f0276b 100644 --- a/docs/developer-and-contributor-corner/monitor-debug-applications-ebpf.md +++ b/docs/developer-and-contributor-corner/monitor-debug-applications-ebpf.md @@ -1,13 +1,3 @@ -<!-- -title: "Monitor, troubleshoot, and debug applications with eBPF metrics" -sidebar_label: "Monitor, troubleshoot, and debug applications with eBPF metrics" -description: "Use Netdata's built-in eBPF metrics collector to monitor, troubleshoot, and debug your custom application using low-level kernel feedback." -image: /img/seo/guides/troubleshoot/monitor-debug-applications-ebpf.png -custom_edit_url: https://github.com/netdata/netdata/edit/master/docs/guides/troubleshoot/monitor-debug-applications-ebpf.md -learn_status: "Published" -learn_rel_path: "Operations" ---> - # Monitor, troubleshoot, and debug applications with eBPF metrics When trying to troubleshoot or debug a finicky application, there's no such thing as too much information. At Netdata, @@ -48,7 +38,7 @@ your application's process name. Your file should now look like this: -```conf +```text ... # ----------------------------------------------------------------------------- # Custom applications to monitor with apps.plugin and ebpf.plugin @@ -60,15 +50,14 @@ dev: custom-app ... ``` -Restart Netdata with `sudo systemctl restart netdata`, or the [appropriate -method](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) for your system, to begin seeing metrics for this particular +Restart Netdata with `sudo systemctl restart netdata`, or the [appropriate method](/docs/netdata-agent/start-stop-restart.md) for your system, to begin seeing metrics for this particular group+process. You can also add additional processes to the same group. You can set up `apps_groups.conf` to more show more precise eBPF metrics for any application or service running on your system, even if it's a standard package like Redis, Apache, or any other [application/service Netdata collects from](/src/collectors/COLLECTORS.md). -```conf +```text # ----------------------------------------------------------------------------- # Custom applications to monitor with apps.plugin and ebpf.plugin @@ -99,7 +88,7 @@ sudo ./edit-config ebpf.d.conf Replace `entry` with `return`: -```conf +```text [global] ebpf load mode = return disable apps = no @@ -109,8 +98,7 @@ Replace `entry` with `return`: network viewer = yes ``` -Restart Netdata with `sudo systemctl restart netdata`, or the [appropriate -method](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) for your system. +Restart Netdata with `sudo systemctl restart netdata`, or the [appropriate method](/docs/netdata-agent/start-stop-restart.md) for your system. ## Get familiar with per-application eBPF metrics and charts @@ -139,7 +127,7 @@ In these charts, you can see first a spike in syscalls to open and close files f followed by a similar spike from the Apache benchmark. > 👋 Don't forget that you can view chart data directly via Netdata's API! -> +> > For example, open your browser and navigate to `http://NODE:19999/api/v1/data?chart=apps.file_open`, replacing `NODE` > with the IP address or hostname of your Agent. The API returns JSON of that chart's dimensions and metrics, which you > can use in other operations. @@ -245,10 +233,7 @@ Once you've added one or more nodes to a Space in Netdata Cloud, you can see agg dashboard under the same **Applications** or **eBPF** sections that you find on the local Agent dashboard. Or, [create new dashboards](/docs/dashboards-and-charts/dashboards-tab.md) using eBPF metrics from any number of distributed nodes to see how your application interacts with multiple Linux kernels on multiple Linux -systems. +systems. Now that you can see eBPF metrics in Netdata Cloud, you can [invite your team](/docs/netdata-cloud/organize-your-infrastructure-invite-your-team.md#invite-your-team) and share your findings with others. - - - diff --git a/docs/developer-and-contributor-corner/monitor-hadoop-cluster.md b/docs/developer-and-contributor-corner/monitor-hadoop-cluster.md index 98bf3d21..8638f6d6 100644 --- a/docs/developer-and-contributor-corner/monitor-hadoop-cluster.md +++ b/docs/developer-and-contributor-corner/monitor-hadoop-cluster.md @@ -1,12 +1,3 @@ -<!-- -title: "Monitor a Hadoop cluster with Netdata" -sidebar_label: "Monitor a Hadoop cluster with Netdata" -custom_edit_url: https://github.com/netdata/netdata/edit/master/docs/guides/monitor-hadoop-cluster.md -learn_status: "Published" -learn_topic_type: "Tasks" -learn_rel_path: "Miscellaneous" ---> - # Monitor a Hadoop cluster with Netdata Hadoop is an [Apache project](https://hadoop.apache.org/) is a framework for processing large sets of data across a @@ -27,8 +18,8 @@ alternative, like the guide available from For more specifics on the collection modules used in this guide, read the respective pages in our documentation: -- [HDFS](/src/go/plugin/go.d/modules/hdfs/README.md) -- [Zookeeper](/src/go/plugin/go.d/modules/zookeeper/README.md) +- [HDFS](/src/go/plugin/go.d/modules/hdfs/README.md) +- [Zookeeper](/src/go/plugin/go.d/modules/zookeeper/README.md) ## Set up your HDFS and Zookeeper installations @@ -164,7 +155,7 @@ jobs: address : 203.0.113.10:2182 ``` -Finally, [restart Netdata](/packaging/installer/README.md#maintaining-a-netdata-agent-installation). +Finally, [restart Netdata](/docs/netdata-agent/start-stop-restart.md). ```sh sudo systemctl restart netdata @@ -178,7 +169,7 @@ showing real-time metrics for both in your Netdata dashboard. 🎉 The Netdata community helped us create sane defaults for alerts related to both HDFS and Zookeeper. You may want to investigate these to ensure they work well with your Hadoop implementation. -- [HDFS alerts](https://raw.githubusercontent.com/netdata/netdata/master/src/health/health.d/hdfs.conf) +- [HDFS alerts](https://raw.githubusercontent.com/netdata/netdata/master/src/health/health.d/hdfs.conf) You can also access/edit these files directly with `edit-config`: @@ -187,5 +178,4 @@ sudo /etc/netdata/edit-config health.d/hdfs.conf sudo /etc/netdata/edit-config health.d/zookeeper.conf ``` -For more information about editing the defaults or writing new alert entities, see our -[health monitoring documentation](/src/health/README.md). +For more information about editing the defaults or writing new alert entities, see our [health monitoring documentation](/src/health/README.md). diff --git a/docs/developer-and-contributor-corner/pi-hole-raspberry-pi.md b/docs/developer-and-contributor-corner/pi-hole-raspberry-pi.txt index df6bb080..e150cebd 100644 --- a/docs/developer-and-contributor-corner/pi-hole-raspberry-pi.md +++ b/docs/developer-and-contributor-corner/pi-hole-raspberry-pi.txt @@ -100,26 +100,6 @@ part of your system might affect another.  -### Enable temperature sensor monitoring - -You need to manually enable Netdata's built-in [temperature sensor -collector](/src/collectors/charts.d.plugin/sensors/README.md) to start collecting metrics. - -> Netdata uses a few plugins to manage its [collectors](/src/collectors/REFERENCE.md), each using a different language: Go, -> Python, Node.js, and Bash. While our Go collectors are undergoing the most active development, we still support the -> other languages. In this case, you need to enable a temperature sensor collector that's written in Bash. - -First, open the `charts.d.conf` file for editing. You should always use the `edit-config` script to edit Netdata's -configuration files, as it ensures your settings persist across updates to the Netdata Agent. - -```bash -cd /etc/netdata -sudo ./edit-config charts.d.conf -``` - -Uncomment the `sensors=force` line and save the file. Restart Netdata with `sudo systemctl restart netdata` to enable -Raspberry Pi temperature sensor monitoring. - ### Storing historical metrics on your Raspberry Pi By default, Netdata allocates 256 MiB in disk space to store historical metrics inside the [database diff --git a/docs/developer-and-contributor-corner/process.md b/docs/developer-and-contributor-corner/process.txt index 2902a24f..dbb36c55 100644 --- a/docs/developer-and-contributor-corner/process.md +++ b/docs/developer-and-contributor-corner/process.txt @@ -142,7 +142,7 @@ Inside the file are lists of process names, oftentimes using wildcards (`*`), th groups together. For example, the Netdata Agent looks for processes starting with `mysqld`, `mariad`, `postgres`, and others, and groups them into `sql`. That makes sense, since all these processes are for SQL databases. -```conf +```text sql: mysqld* mariad* postgres* postmaster* oracle_* ora_* sqlservr ``` @@ -170,7 +170,7 @@ the [section above](#configure-the-netdata-agent-to-recognize-a-specific-process the `database servers` section. Create new groups for MySQL and PostgreSQL, and move their process queries into the unique groups. -```conf +```text # ----------------------------------------------------------------------------- # database servers @@ -180,7 +180,7 @@ sql: mariad* postmaster* oracle_* ora_* sqlservr ``` Restart Netdata with `sudo systemctl restart netdata`, or -the [appropriate method](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) for your system, to start collecting utilization metrics +the appropriate method for your system, to start collecting utilization metrics from your application. Time to [visualize your process metrics](#visualize-process-metrics). ### Custom applications @@ -194,7 +194,7 @@ to `# NETDATA processes accounting`. Above that, paste in the following text, which creates a new `custom-app` group with the `custom-app` process. Replace `custom-app` with the name of your application's Linux process. `apps_groups.conf` should now look like this: -```conf +```text ... # ----------------------------------------------------------------------------- # Custom applications to monitor with apps.plugin and ebpf.plugin @@ -207,7 +207,7 @@ custom-app: custom-app ``` Restart Netdata with `sudo systemctl restart netdata`, or -the [appropriate method](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) for your system, to start collecting utilization metrics +the appropriate method for your system, to start collecting utilization metrics from your application. ## Visualize process metrics diff --git a/docs/developer-and-contributor-corner/python-collector.md b/docs/developer-and-contributor-corner/python-collector.txt index 0b7aa96a..f846b347 100644 --- a/docs/developer-and-contributor-corner/python-collector.md +++ b/docs/developer-and-contributor-corner/python-collector.txt @@ -1,8 +1,8 @@ # Develop a custom data collector in Python -The Netdata Agent uses [data collectors](/src/collectors/README.md) to -fetch metrics from hundreds of system, container, and service endpoints. While the Netdata team and community has built -[powerful collectors](/src/collectors/COLLECTORS.md) for most system, container, +The Netdata Agent uses [data collectors](/src/collectors/README.md) to +fetch metrics from hundreds of system, container, and service endpoints. While the Netdata team and community has built +[powerful collectors](/src/collectors/COLLECTORS.md) for most system, container, and service/application endpoints, some custom applications can't be monitored by default. In this tutorial, you'll learn how to leverage the [Python programming language](https://www.python.org/) to build a @@ -17,16 +17,16 @@ execute. Python plugins require Python on the machine to be executed. Netdata us production-grade collectors. We generally do not accept contributions of Python modules to the GitHub project netdata/netdata. If you write a Python collector and -want to make it available for other users, you should create the pull request in https://github.com/netdata/community. +want to make it available for other users, you should create the pull request in <https://github.com/netdata/community>. ## What you need to get started - - A physical or virtual Linux system, which we'll call a _node_. - - A working [installation of Netdata](/packaging/installer/README.md) monitoring agent. +- A physical or virtual Linux system, which we'll call a _node_. +- A working [installation of Netdata](/packaging/installer/README.md) monitoring agent. ### Quick start -For a quick start, you can look at the +For a quick start, you can look at the [example plugin](https://raw.githubusercontent.com/netdata/netdata/master/src/collectors/python.d.plugin/example/example.chart.py). **Note**: If you are working 'locally' on a new collector and would like to run it in an already installed and running @@ -72,21 +72,21 @@ The basic elements of a Netdata collector are: - `data{}`: A dictionary containing the values to be displayed. - `get_data()`: The basic function of the plugin which will return to Netdata the correct values. -**Note**: All names are better explained in the -[External Plugins Documentation](/src/collectors/plugins.d/README.md). +**Note**: All names are better explained in the +[External Plugins Documentation](/src/plugins.d/README.md). Parameters like `priority` and `update_every` mentioned in that documentation are handled by the `python.d.plugin`, -not by each collection module. +not by each collection module. Let's walk through these jobs and elements as independent elements first, then apply them to example Python code. ### Determine how to gather metrics data -Netdata can collect data from any program that can print to stdout. Common input sources for collectors can be logfiles, +Netdata can collect data from any program that can print to stdout. Common input sources for collectors can be log files, HTTP requests, executables, and more. While this tutorial will offer some example inputs, your custom application will have different inputs and metrics. A great deal of the work in developing a Netdata collector is investigating the target application and understanding -which metrics it exposes and how to +which metrics it exposes and how to ### Create charts @@ -117,13 +117,14 @@ context, charttype]`, where: that is `A.B`, with `A` being the name of the collector, and `B` being the name of the specific metric. - `charttype`: Either `line`, `area`, or `stacked`. If null line is the default value. -You can read more about `family` and `context` in the [web dashboard](/src/web/README.md#families) doc. +You can read more about `family` and `context` in the [Netdata Charts](/docs/dashboards-and-charts/netdata-charts.md) doc. Once the chart has been defined, you should define the dimensions of the chart. Dimensions are basically the metrics to be represented in this chart and each chart can have more than one dimension. In order to define the dimensions, the "lines" list should be filled in with the required dimensions. Each dimension is a list: `dimension: [id, name, algorithm, multiplier, divisor]` + - `id` : The id of the dimension. Mandatory unique field (string) required in order to set a value. - `name`: The name to be presented in the chart. If null id will be used. - `algorithm`: Can be absolute or incremental. If null absolute is used. Incremental shows the difference from the @@ -145,6 +146,7 @@ Once you have process your data and get the required values, you need to assign This is done using the `data` dictionary, which is in the form: `"data": {dimension_id: value }`, where: + - `dimension_id`: The id of a defined dimension in a created chart. - `value`: The numerical value to associate with this dimension. @@ -153,6 +155,7 @@ This is done using the `data` dictionary, which is in the form: Next, set the order of chart appearance with the `ORDER` list, which is in the form: `"ORDER": [chart_name_1,chart_name_2, …., chart_name_X]`, where: + - `chart_name_x`: is the chart name to be shown in X order. ### Give the charts data to Netdata for visualization @@ -160,19 +163,19 @@ Next, set the order of chart appearance with the `ORDER` list, which is in the f Our plugin should just rerun the data dictionary. If everything is set correctly the charts should be updated with the correct values. -## Framework classes +## Framework classes Every module needs to implement its own `Service` class. This class should inherit from one of the framework classes: -- `SimpleService` -- `UrlService` -- `SocketService` -- `LogService` -- `ExecutableService` +- `SimpleService` +- `UrlService` +- `SocketService` +- `LogService` +- `ExecutableService` -Also it needs to invoke the parent class constructor in a specific way as well as assign global variables to class variables. +Also it needs to invoke the parent class constructor in a specific way as well as assign global variables to class variables. -For example, the snippet below is from the +For example, the snippet below is from the [RabbitMQ collector](https://github.com/netdata/netdata/blob/91f3268e9615edd393bd43de4ad8068111024cc9/collectors/python.d.plugin/rabbitmq/rabbitmq.chart.py#L273). This collector uses an HTTP endpoint and uses the `UrlService` framework class, which only needs to define an HTTP endpoint for data collection. @@ -229,10 +232,11 @@ CHARTS = { ## Parse the data to extract or create the actual data to be represented -Every collector must implement `_get_data`. This method should grab raw data from `_get_raw_data`, +Every collector must implement `_get_data`. This method should grab raw data from `_get_raw_data`, parse it, and return a dictionary where keys are unique dimension names, or `None` if no data is collected. For example: + ```py def _get_data(self): try: @@ -374,7 +378,7 @@ class Service(SimpleService): To enrich the example, add another chart the collector which to present the humidity metric. -Add a new entry in the `CHARTS` dictionary with the definition for the new chart. +Add a new entry in the `CHARTS` dictionary with the definition for the new chart. ```python CHARTS = { @@ -410,7 +414,7 @@ ORDER = [ ] ``` -[Restart Netdata](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) with `sudo systemctl restart netdata` to see the new humidity +[Restart Netdata](/docs/netdata-agent/start-stop-restart.md) to see the new humidity chart:  @@ -467,8 +471,7 @@ ORDER = [ ] ``` -[Restart Netdata](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) with `sudo systemctl restart netdata` to see the new -min/max/average temperature chart with multiple dimensions: +[Restart Netdata](/docs/netdata-agent/start-stop-restart.md) to see the new min/max/average temperature chart with multiple dimensions:  @@ -485,7 +488,7 @@ configuration in [YAML](https://www.tutorialspoint.com/yaml/yaml_basics.htm) for serially and will stop at the first job that returns data. If multiple jobs have the same name, only one of them can run. This enables you to define different "ways" to fetch data from a particular data source so that the collector has more chances to work out-of-the-box. For example, if the data source supports both `HTTP` and `linux socket`, you can - define 2 jobs named `local`, with each using a different method. + define 2 jobs named `local`, with each using a different method. - Check the `example` collector configuration file on [GitHub](https://github.com/netdata/netdata/blob/master/src/collectors/python.d.plugin/example/example.conf) to get a sense of the structure. @@ -521,26 +524,26 @@ variables and inform the user about the defaults. For example, take a look at th [GitHub](https://github.com/netdata/netdata/blob/master/src/collectors/python.d.plugin/example/example.conf). You can read more about the configuration file on the [`python.d.plugin` -documentation](/src/collectors/python.d.plugin/README.md). +documentation](/src/collectors/python.d.plugin/README.md). -You can find the source code for the above examples on [GitHub](https://github.com/papajohn-uop/netdata). +You can find the source code for the above examples on [GitHub](https://github.com/papajohn-uop/netdata). ## Pull Request Checklist for Python Plugins -Pull requests should be created in https://github.com/netdata/community. +Pull requests should be created in <https://github.com/netdata/community>. This is a generic checklist for submitting a new Python plugin for Netdata. It is by no means comprehensive. At minimum, to be buildable and testable, the PR needs to include: -- The module itself, following proper naming conventions: `collectors/python.d.plugin/<module_dir>/<module_name>.chart.py` -- A README.md file for the plugin under `collectors/python.d.plugin/<module_dir>`. -- The configuration file for the module: `collectors/python.d.plugin/<module_dir>/<module_name>.conf`. Python config files are in YAML format, and should include comments describing what options are present. The instructions are also needed in the configuration section of the README.md -- A basic configuration for the plugin in the appropriate global config file: `collectors/python.d.plugin/python.d.conf`, which is also in YAML format. Either add a line that reads `# <module_name>: yes` if the module is to be enabled by default, or one that reads `<module_name>: no` if it is to be disabled by default. -- A makefile for the plugin at `collectors/python.d.plugin/<module_dir>/Makefile.inc`. Check an existing plugin for what this should look like. -- A line in `collectors/python.d.plugin/Makefile.am` including the above-mentioned makefile. Place it with the other plugin includes (please keep the includes sorted alphabetically). -- Optionally, chart information in `src/web/gui/dashboard_info.js`. This generally involves specifying a name and icon for the section, and may include descriptions for the section or individual charts. -- Optionally, some default alert configurations for your collector in `health/health.d/<module_name>.conf` and a line adding `<module_name>.conf` in `health/Makefile.am`. +- The module itself, following proper naming conventions: `collectors/python.d.plugin/<module_dir>/<module_name>.chart.py` +- A README.md file for the plugin under `collectors/python.d.plugin/<module_dir>`. +- The configuration file for the module: `collectors/python.d.plugin/<module_dir>/<module_name>.conf`. Python config files are in YAML format, and should include comments describing what options are present. The instructions are also needed in the configuration section of the README.md +- A basic configuration for the plugin in the appropriate global config file: `collectors/python.d.plugin/python.d.conf`, which is also in YAML format. Either add a line that reads `# <module_name>: yes` if the module is to be enabled by default, or one that reads `<module_name>: no` if it is to be disabled by default. +- A makefile for the plugin at `collectors/python.d.plugin/<module_dir>/Makefile.inc`. Check an existing plugin for what this should look like. +- A line in `collectors/python.d.plugin/Makefile.am` including the above-mentioned makefile. Place it with the other plugin includes (please keep the includes sorted alphabetically). +- Optionally, chart information in `src/web/gui/dashboard_info.js`. This generally involves specifying a name and icon for the section, and may include descriptions for the section or individual charts. +- Optionally, some default alert configurations for your collector in `health/health.d/<module_name>.conf` and a line adding `<module_name>.conf` in `health/Makefile.am`. ## Framework class reference @@ -567,11 +570,11 @@ Example: `ceph`, `sensors` It is the lowest-level class which implements most of module logic, like: -- threading -- handling run times -- chart formatting -- logging -- chart creation and updating +- threading +- handling run times +- chart formatting +- logging +- chart creation and updating ### `LogService` @@ -589,11 +592,11 @@ Variable from config file: `command`. This allows to execute a shell command in a secure way. It will check for invalid characters in `command` variable and won't proceed if there is one of: -- '&' -- '|' -- ';' -- '>' -- '\<' +- '&' +- '|' +- ';' +- '>' +- '\<' For additional security it uses python `subprocess.Popen` (without `shell=True` option) to execute command. Command can be specified with absolute or relative name. When using relative name, it will try to find `command` in `PATH` environment variable as well as in `/sbin` and `/usr/sbin`. diff --git a/docs/developer-and-contributor-corner/raspberry-pi-anomaly-detection.md b/docs/developer-and-contributor-corner/raspberry-pi-anomaly-detection.txt index 41cf007e..9bdacf27 100644 --- a/docs/developer-and-contributor-corner/raspberry-pi-anomaly-detection.md +++ b/docs/developer-and-contributor-corner/raspberry-pi-anomaly-detection.txt @@ -23,11 +23,11 @@ Read on to learn all the steps and enable unsupervised anomaly detection on your First make sure Netdata is using Python 3 when it runs Python-based data collectors. -Next, open `netdata.conf` using [`edit-config`](/docs/netdata-agent/configuration/README.md#edit-netdataconf) +Next, open `netdata.conf` using [`edit-config`](/docs/netdata-agent/configuration/README.md#edit-a-configuration-file-using-edit-config) from within the [Netdata config directory](/docs/netdata-agent/configuration/README.md#the-netdata-config-directory). Scroll down to the `[plugin:python.d]` section to pass in the `-ppython3` command option. -```conf +```text [plugin:python.d] # update every = 1 command options = -ppython3 @@ -53,7 +53,7 @@ LLVM_CONFIG=llvm-config-9 pip3 install --user llvmlite numpy==1.20.1 netdata-pan ## Enable the anomalies collector -Now you're ready to enable the collector and [restart Netdata](/packaging/installer/README.md#maintaining-a-netdata-agent-installation). +Now you're ready to enable the collector and restart Netdata. ```bash sudo ./edit-config python.d.conf diff --git a/docs/developer-and-contributor-corner/running-through-cf-tunnels.md b/docs/developer-and-contributor-corner/running-through-cf-tunnels.md index 3179d580..588740bc 100644 --- a/docs/developer-and-contributor-corner/running-through-cf-tunnels.md +++ b/docs/developer-and-contributor-corner/running-through-cf-tunnels.md @@ -102,7 +102,7 @@ You can edit the configuration file using the `edit-config` script from the Netd destination = tcp:127.0.0.1:19999 ``` -[Restart the Agents](/packaging/installer/README.md#maintaining-a-netdata-agent-installation), and you are done! +[Restart the Agents](/docs/netdata-agent/start-stop-restart.md), and you are done! You should now be able to have a Local Dashboard that gets its metrics from Child instances, running through Cloudflare tunnels. diff --git a/docs/developer-and-contributor-corner/style-guide.md b/docs/developer-and-contributor-corner/style-guide.md index 94656bd7..b64a9df0 100644 --- a/docs/developer-and-contributor-corner/style-guide.md +++ b/docs/developer-and-contributor-corner/style-guide.md @@ -2,7 +2,7 @@ The _Netdata style guide_ establishes editorial guidelines for any writing produced by the Netdata team or the Netdata community, including documentation, articles, in-product UX copy, and more. -> ### Note +> **Note** > This document is meant to be accompanied by the [Documentation Guidelines](/docs/guidelines.md). If you want to contribute to Netdata's documentation, please read it too. Both internal Netdata teams and external contributors to any of Netdata's open-source projects should reference and adhere to this style guide as much as possible. @@ -30,7 +30,6 @@ you're around. In writing, you reflect tone in your word choice, punctuation, se The same idea about voice and tone applies to organizations, too. Our voice shouldn't change much between two pieces of content, no matter who wrote each, but the tone might be quite different based on who we think is reading. - ### Voice Netdata's voice is authentic, passionate, playful, and respectful. @@ -63,7 +62,7 @@ the [language, grammar, and mechanics](#language-grammar-and-mechanics) section - Would this language make sense to someone who doesn't work here? - Could someone quickly scan this document and understand the material? -- Create an information hierarchy with key information presented first and clearly called out to improve scannability. +- Create an information hierarchy with key information presented first and clearly called out to improve clarity and readability. - Avoid directional language like "sidebar on the right of the page" or "header at the top of the page" since presentation elements may adapt for devices. - Use descriptive links rather than "click here" or "learn more". @@ -236,8 +235,8 @@ must reflect the _current state of [production](https://app.netdata.cloud). Every link should clearly state its destination. Don't use words like "here" to describe where a link will take your reader. -| | | -|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------| +| | | +|-----------------|-------------------------------------------------------------------------------------------| | Not recommended | To install Netdata, click [here](/packaging/installer/README.md). | | **Recommended** | To install Netdata, read the [installation instructions](/packaging/installer/README.md). | @@ -300,9 +299,9 @@ universal. Don't include full paths, beginning from the system's root (`/`), as these might not work on certain systems. -| | | -|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| -| Not recommended | Use `edit-config` to edit Netdata's configuration: `sudo /etc/netdata/edit-config netdata.conf`. | +| | | +|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| +| Not recommended | Use `edit-config` to edit Netdata's configuration: `sudo /etc/netdata/edit-config netdata.conf`. | | **Recommended** | Use `edit-config` to edit Netdata's configuration by first navigating to your [Netdata config directory](/docs/netdata-agent/configuration/README.md#the-netdata-config-directory), which is typically at `/etc/netdata`, then running `sudo edit-config netdata.conf`. | ### `sudo` @@ -394,27 +393,26 @@ the [Docusaurus documentation](https://v2.docusaurus.io/docs/markdown-features#c Notes inside files should render properly both in GitHub and in Learn, to do that, it is best to use the format listed below: -``` -> ### Note +```md +> **Note** > This is an info or a note block. -> ### Tip, Best Practice +> **Tip, Best Practice** > This is a tip or a best practice block. -> ### Warning, Caution +> **Warning, Caution** > This is a warning or a caution block. ``` Which renders into: - -> ### Note +> **Note** > This is an info or a note block. -> ### Tip, Best Practice +> **Tip, Best Practice** > This is a tip or a best practice block. -> ### Warning, Caution +> **Warning, Caution** > This is a warning or a caution block. ### Tabs @@ -450,21 +448,21 @@ The following tables describe the standard spelling, capitalization, and usage o | Term | Definition | |-----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| -| **claimed node** | A node that you've proved ownership of by completing the [connecting to Cloud process](/src/claim/README.md). The claimed node will then appear in your Space and any Rooms you added it to. | +| **Connected Node** | A node that you've proved ownership of by completing the [connecting to Cloud process](/src/claim/README.md). The claimed node will then appear in your Space and any Rooms you added it to. | | **Netdata** | The company behind the open-source Netdata Agent and the Netdata Cloud web application. Never use _netdata_ or _NetData_. <br /><br />In general, focus on the user's goals, actions, and solutions rather than what the company provides. For example, write _Learn more about enabling alert notifications on your preferred platforms_ instead of _Netdata sends alert notifications to your preferred platforms_. | | **Netdata Agent** | The free and open source [monitoring agent](https://github.com/netdata/netdata) that you can install on all of your distributed systems, whether they're physical, virtual, containerized, ephemeral, and more. The Agent monitors systems running Linux, Docker, Kubernetes, macOS, FreeBSD, and more, and collects metrics from hundreds of popular services and applications. | | **Netdata Cloud** | The web application hosted at [https://app.netdata.cloud](https://app.netdata.cloud) that helps you monitor an entire infrastructure of distributed systems in real time. <br /><br />Never use _Cloud_ without the preceding _Netdata_ to avoid ambiguity. | | **Netdata community forum** | The Discourse-powered forum for feature requests, Netdata Cloud technical support, and conversations about Netdata's monitoring and troubleshooting products. | -| **node** | A system on which the Netdata Agent is installed. The system can be physical, virtual, in a Docker container, and more. Depending on your infrastructure, you may have one, dozens, or hundreds of nodes. Some nodes are _ephemeral_, in that they're created/destroyed automatically by an orchestrator service. | +| **Node** | A system on which the Netdata Agent is installed. The system can be physical, virtual, in a Docker container, and more. Depending on your infrastructure, you may have one, dozens, or hundreds of nodes. Some nodes are _ephemeral_, in that they're created/destroyed automatically by an orchestrator service. | | **Space** | The highest level container within Netdata Cloud for a user to organize their team members and nodes within their infrastructure. A Space likely represents an entire organization or a large team. <br /><br />_Space_ is always capitalized. | -| **unreachable node** | A connected node with a disrupted [Agent-Cloud link](/src/aclk/README.md). Unreachable could mean the node no longer exists or is experiencing network connectivity issues with Cloud. | -| **visited node** | A node which has had its Agent dashboard directly visited by a user. A list of these is maintained on a per-user basis. | -| **Room** | A smaller grouping of nodes where users can view key metrics in real-time and monitor the health of many nodes with their alert status. Rooms can be used to organize nodes in any way that makes sense for your infrastructure, such as by a service, purpose, physical location, and more. <br /><br />_Room_ is always capitalized. | +| **Unreachable node** | A connected node with a disrupted [Agent-Cloud link](/src/aclk/README.md). Unreachable could mean the node no longer exists or is experiencing network connectivity issues with Cloud. | +| **Visited Node** | A node which has had its Agent dashboard directly visited by a user. A list of these is maintained on a per-user basis. | +| **Room** | A smaller grouping of nodes where users can view key metrics in real-time and monitor the health of many nodes with their alert status. Rooms can be used to organize nodes in any way that makes sense for your infrastructure, such as by a service, purpose, physical location, and more. <br /><br />_Room_ is always capitalized. | ### Other technical terms | Term | Definition | |-----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | **filesystem** | Use instead of _file system_. | -| **preconfigured** | The concept that many of Netdata's features come with sane defaults that users don't need to configure to find immediate value. | +| **pre-configured** | The concept that many of Netdata's features come with sane defaults that users don't need to configure to find immediate value. | | **real time**/**real-time** | Use _real time_ as a noun phrase, most often with _in_: _Netdata collects metrics in real time_. Use _real-time_ as an adjective: _Netdata collects real-time metrics from hundreds of supported applications and services. | diff --git a/docs/diagrams/netdata-overview.xml b/docs/diagrams/netdata-overview.xml index 16c967e6..2967f915 100644 --- a/docs/diagrams/netdata-overview.xml +++ b/docs/diagrams/netdata-overview.xml @@ -78,7 +78,7 @@ <mxGeometry x="254" y="690" width="770" height="93" as="geometry" /> </mxCell> </UserObject> - <UserObject label="<div><font style="font-size: 16px"><b>plugins.d</b></font></div><font style="font-size: 16px"><b>external plugins API</b></font><div><font style="font-size: 14px">text format, over pipes</font></div>" link="https://github.com/netdata/netdata/tree/master/src/collectors/plugins.d" id="32"> + <UserObject label="<div><font style="font-size: 16px"><b>plugins.d</b></font></div><font style="font-size: 16px"><b>external plugins API</b></font><div><font style="font-size: 14px">text format, over pipes</font></div>" link="https://github.com/netdata/netdata/tree/master/src/plugins.d" id="32"> <mxCell style="whiteSpace=wrap;html=1;fontSize=16;fillColor=#FFFFFF;strokeColor=#59DE9C;" parent="1" vertex="1"> <mxGeometry x="74" y="887" width="580" height="130" as="geometry" /> </mxCell> diff --git a/docs/exporting-metrics/README.md b/docs/exporting-metrics/README.md index d667cea1..24e33ad4 100644 --- a/docs/exporting-metrics/README.md +++ b/docs/exporting-metrics/README.md @@ -3,7 +3,7 @@ Netdata allows you to export metrics to external time-series databases with the [exporting engine](/src/exporting/README.md). This system uses a number of **connectors** to initiate connections to [more than thirty](#supported-databases) supported databases, including InfluxDB, Prometheus, Graphite, ElasticSearch, and much -more. +more. The exporting engine resamples Netdata's thousands of per-second metrics at a user-configurable interval, and can export metrics to multiple time-series databases simultaneously. @@ -22,45 +22,45 @@ Netdata supports exporting metrics to the following databases through several [connectors](/src/exporting/README.md#features). Once you find the connector that works for your database, open its documentation and the [enabling a connector](/docs/exporting-metrics/enable-an-exporting-connector.md) doc for details on enabling it. -- **AppOptics**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **AWS Kinesis**: [AWS Kinesis Data Streams](/src/exporting/aws_kinesis/README.md) -- **Azure Data Explorer**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Azure Event Hubs**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Blueflood**: [Graphite](/src/exporting/graphite/README.md) -- **Chronix**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Cortex**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **CrateDB**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **ElasticSearch**: [Graphite](/src/exporting/graphite/README.md), [Prometheus remote +- **AppOptics**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **AWS Kinesis**: [AWS Kinesis Data Streams](/src/exporting/aws_kinesis/README.md) +- **Azure Data Explorer**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **Azure Event Hubs**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **Blueflood**: [Graphite](/src/exporting/graphite/README.md) +- **Chronix**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **Cortex**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **CrateDB**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **ElasticSearch**: [Graphite](/src/exporting/graphite/README.md), [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Gnocchi**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Google BigQuery**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Google Cloud Pub/Sub**: [Google Cloud Pub/Sub Service](/src/exporting/pubsub/README.md) -- **Graphite**: [Graphite](/src/exporting/graphite/README.md), [Prometheus remote +- **Gnocchi**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **Google BigQuery**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **Google Cloud Pub/Sub**: [Google Cloud Pub/Sub Service](/src/exporting/pubsub/README.md) +- **Graphite**: [Graphite](/src/exporting/graphite/README.md), [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **InfluxDB**: [Graphite](/src/exporting/graphite/README.md), [Prometheus remote +- **InfluxDB**: [Graphite](/src/exporting/graphite/README.md), [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **IRONdb**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **JSON**: [JSON document databases](/src/exporting/json/README.md) -- **Kafka**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **KairosDB**: [Graphite](/src/exporting/graphite/README.md), [OpenTSDB](/src/exporting/opentsdb/README.md) -- **M3DB**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **MetricFire**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **MongoDB**: [MongoDB](/src/exporting/mongodb/README.md) -- **New Relic**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **OpenTSDB**: [OpenTSDB](/src/exporting/opentsdb/README.md), [Prometheus remote +- **IRONdb**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **JSON**: [JSON document databases](/src/exporting/json/README.md) +- **Kafka**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **KairosDB**: [Graphite](/src/exporting/graphite/README.md), [OpenTSDB](/src/exporting/opentsdb/README.md) +- **M3DB**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **MetricFire**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **MongoDB**: [MongoDB](/src/exporting/mongodb/README.md) +- **New Relic**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **OpenTSDB**: [OpenTSDB](/src/exporting/opentsdb/README.md), [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **PostgreSQL**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **PostgreSQL**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) via [PostgreSQL Prometheus Adapter](https://github.com/CrunchyData/postgresql-prometheus-adapter) -- **Prometheus**: [Prometheus scraper](/src/exporting/prometheus/README.md) -- **TimescaleDB**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md), +- **Prometheus**: [Prometheus scraper](/src/exporting/prometheus/README.md) +- **TimescaleDB**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md), [netdata-timescale-relay](/src/exporting/TIMESCALE.md) -- **QuasarDB**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **SignalFx**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Splunk**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **TiKV**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Thanos**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **VictoriaMetrics**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) -- **Wavefront**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **QuasarDB**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **SignalFx**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **Splunk**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **TiKV**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **Thanos**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **VictoriaMetrics**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) +- **Wavefront**: [Prometheus remote write](/src/exporting/prometheus/remote_write/README.md) Can't find your preferred external time-series database? Ask our [community](https://community.netdata.cloud/) for solutions, or file an [issue on diff --git a/docs/exporting-metrics/enable-an-exporting-connector.md b/docs/exporting-metrics/enable-an-exporting-connector.md index 6a5542fd..16fbe0b9 100644 --- a/docs/exporting-metrics/enable-an-exporting-connector.md +++ b/docs/exporting-metrics/enable-an-exporting-connector.md @@ -19,7 +19,7 @@ Use `edit-config` from your [Netdata config directory](/docs/netdata-agent/confi Enable the exporting engine itself by setting `enabled` to `yes`: -```conf +```text [exporting:global] enabled = yes ``` @@ -30,7 +30,7 @@ Save the file but keep it open, as you will edit it again to enable specific con Use the following configuration as a starting point. Copy and paste it into `exporting.conf`. -```conf +```text [opentsdb:http:my_opentsdb_http_instance] enabled = yes destination = localhost:4242 diff --git a/docs/glossary.md b/docs/glossary.md index bcada603..78ba1807 100644 --- a/docs/glossary.md +++ b/docs/glossary.md @@ -6,7 +6,7 @@ As such, we want to provide a little Glossary as a reference starting point for If you're here looking for the definition of a term you heard elsewhere in our community or products, or if you just want to learn Netdata from the ground up, you've come to the right page. -Use the alphabatized list below to find the answer to your single-term questions, and click the bolded list items to explore more on the topics! We'll be sure to keep constantly updating this list, so if you hear a word that you would like for us to cover, just let us know or submit a request! +Use the alphabetized list below to find the answer to your single-term questions, and click the bolded list items to explore more on the topics! We'll be sure to keep constantly updating this list, so if you hear a word that you would like for us to cover, just let us know or submit a request! [A](#a) | [B](#b) | [C](#c) | [D](#d)| [E](#e) | [F](#f) | [G](#g) | [H](#h) | [I](#i) | [J](#j) | [K](#k) | [L](#l) | [M](#m) | [N](#n) | [O](#o) | [P](#p) | [Q](#q) | [R](#r) | [S](#s) | [T](#t) | [U](#u) | [V](#v) | [W](#w) | [X](#x) | [Y](#y) | [Z](#z) @@ -53,7 +53,7 @@ Use the alphabatized list below to find the answer to your single-term questions ## E -- [**External Plugins**](/src/collectors/plugins.d/README.md): These gather metrics from external processes, such as a webserver or database, and run as independent processes that communicate with the Netdata daemon via pipes. +- [**External Plugins**](/src/plugins.d/README.md): These gather metrics from external processes, such as a webserver or database, and run as independent processes that communicate with the Netdata daemon via pipes. ## F @@ -65,7 +65,7 @@ Use the alphabatized list below to find the answer to your single-term questions ## G -- [**Group by**](/docs/dashboards-and-charts/netdata-charts.md#group-by-dimension-node-or-chart): The drop-down on the dimension bar of a composite chart that allows you to group metrics by dimension, node, or chart. +- [**Group by**](/docs/dashboards-and-charts/netdata-charts.md#group-by-dropdown): The drop-down on the dimension bar of a composite chart that allows you to group metrics by dimension, node, or chart. - [**Health Configuration Files**](/src/health/REFERENCE.md#edit-health-configuration-files): Files that you can edit to configure your Agent's health watchdog service. @@ -110,7 +110,7 @@ metrics, troubleshoot complex performance problems, and make data interoperable ## O -- [**Obsoletion**(of nodes)](/docs/netdata-cloud/organize-your-infrastructure-invite-your-team.md#obsoleting-offline-nodes-from-a-space): Removing nodes from a space. +- [**Obsoletion**(of nodes)](/docs/dashboards-and-charts/nodes-tab.md): Removing nodes from a space. - [**Orchestrators**](/src/collectors/README.md#collector-architecture-and-terminology): External plugins that run and manage one or more modules. They run as independent processes. @@ -145,8 +145,8 @@ even thousands of nodes. There are no actual bottlenecks especially if you retai ## V -- [**Visualizations**](/docs/category-overview-pages/visualizations-overview.md): Netdata uses dimensions, contexts, and families to sort your metric data into graphs, charts, and alerts that maximize your understand of your infrastructure and your ability to troubleshoot it, along or on a team. +- [**Visualizations**](/docs/dashboards-and-charts/README.md): Netdata uses dimensions, contexts, and families to sort your metric data into graphs, charts, and alerts that maximize your understand of your infrastructure and your ability to troubleshoot it, along or on a team. ## Z -- **Zero Configuration**: Netdata is preconfigured and capable to autodetect and monitor any well known application that runs on your system. You just deploy and claim Netdata Agents in your Netdata space, and monitor them in seconds. +- **Zero Configuration**: Netdata is pre-configured and capable to autodetect and monitor any well known application that runs on your system. You just deploy and claim Netdata Agents in your Netdata space, and monitor them in seconds. diff --git a/docs/guidelines.md b/docs/guidelines.md index b0e6759c..02e7a386 100644 --- a/docs/guidelines.md +++ b/docs/guidelines.md @@ -49,7 +49,7 @@ Please ensure that any links to a different documentation resource are fully exp e.g. -``` +```text [Correct link to this document](/docs/guidelines.md) vs [Incorrect link to this document](https://learn.netdata.cloud/XYZ) diff --git a/docs/netdata-agent/README.md b/docs/netdata-agent/README.md index 75bd4898..8096e911 100644 --- a/docs/netdata-agent/README.md +++ b/docs/netdata-agent/README.md @@ -1,6 +1,6 @@ # Netdata Agent -The Netdata Agent is the main building block in a Netdata ecosystem. It is installed on all monitored systems to monitor system components, containers and applications. +The Netdata Agent is the main building block in the Netdata ecosystem. It is installed on all monitored systems to monitor system components, containers and applications. The Netdata Agent is an **observability pipeline in a box** that can either operate standalone, or blend into a bigger pipeline made by more Netdata Agents (Children and Parents). @@ -53,7 +53,7 @@ stateDiagram-v2 1. **Discover**: auto-detect metric sources on localhost, auto-discover metric sources on Kubernetes. 2. **Collect**: query data sources to collect metric samples, using the optimal protocol for each data source. 800+ integrations supported, including dozens of native application protocols, OpenMetrics and StatsD. -3. **Detect Anomalies**: use the trained machine learning models for each metric, to detect in real-time if each sample collected is an outlier (an anomaly), or not. +3. **Detect Anomalies**: use the trained machine learning models for each metric to detect in real-time if each sample collected is an outlier (an anomaly), or not. 4. **Store**: keep collected samples and their anomaly status, in the time-series database (database mode `dbengine`) or a ring buffer (database modes `ram` and `alloc`). 5. **Learn**: train multiple machine learning models for each metric collected, learning behaviors and patterns for detecting anomalies. 6. **Check**: a health engine, triggering alerts and sending notifications. Netdata comes with hundreds of alert configurations that are automatically attached to metrics when they get collected, detecting errors, common configuration errors and performance issues. @@ -69,7 +69,7 @@ stateDiagram-v2 2. **Automation**: Netdata is designed to automate most of the process of setting up and running an observability solution. It is designed to instantly provide comprehensive dashboards and fully automated alerts, with zero configuration. -3. **High Fidelity Monitoring**: Netdata was born from our need to kill the console for observability. So, it provides metrics and logs in the same granularity and fidelity console tools do, but also comes with tools that go beyond metrics and logs, to provide a holistic view of the monitored infrastructure (e.g. check [Top Monitoring](/docs/top-monitoring-netdata-functions.md)). +3. **High Fidelity Monitoring**: Netdata was born from our need to kill the console for observability. So, it provides metrics and logs in the same granularity and fidelity console tools do, but also comes with tools that go beyond metrics and logs, to provide a holistic view of the monitored infrastructure (e.g., check [Top Monitoring](/docs/top-monitoring-netdata-functions.md)). 4. **Minimal impact on monitored systems and applications**: Netdata has been designed to have a minimal impact on the monitored systems and their applications. There are [independent studies](https://www.ivanomalavolta.com/files/papers/ICSOC_2023.pdf) reporting that Netdata excels in CPU usage, RAM utilization, Execution Time and the impact Netdata has on monitored applications and containers. @@ -77,8 +77,8 @@ stateDiagram-v2 ## Dashboard Versions -The Netdata agents (Standalone, Children and Parents) **share the dashboard** of Netdata Cloud. However, when the user is logged-in and the Netdata agent is connected to Netdata Cloud, the following are enabled (which are otherwise disabled): +The Netdata agents (Standalone, Children and Parents) **share the dashboard** of Netdata Cloud. However, when the user is logged in and the Netdata agent is connected to Netdata Cloud, the following are enabled (which are otherwise disabled): 1. **Access to Sensitive Data**: Some data, like systemd-journal logs and several [Top Monitoring](/docs/top-monitoring-netdata-functions.md) features expose sensitive data, like IPs, ports, process command lines and more. To access all these when the dashboard is served directly from a Netdata agent, Netdata Cloud is required to verify that the user accessing the dashboard has the required permissions. -2. **Dynamic Configuration**: Netdata agents are configured via configuration files, manually or through some provisioning system. The latest Netdata includes a feature to allow users change some of the configuration (collectors, alerts) via the dashboard. This feature is only available to users of paid Netdata Cloud plan. +2. **Dynamic Configuration**: Netdata agents are configured via configuration files, manually or through some provisioning system. The latest Netdata includes a feature to allow users to change some configurations (collectors, alerts) via the dashboard. This feature is only available to users of paid Netdata Cloud plan. diff --git a/docs/netdata-agent/backup-and-restore-an-agent.md b/docs/netdata-agent/backup-and-restore-an-agent.md index d17cad60..db9398b2 100644 --- a/docs/netdata-agent/backup-and-restore-an-agent.md +++ b/docs/netdata-agent/backup-and-restore-an-agent.md @@ -1,44 +1,43 @@ # Backing up a Netdata Agent > **Note** -> +> > Users are responsible for backing up, recovering, and ensuring their data's availability because Netdata stores data locally on each system due to its decentralized architecture. ## Introduction -When preparing to backup a Netdata Agent it is worth considering that there are different kinds of data that you may wish to backup independently or all together: +When planning a Netdata Agent backup, it's essential to recognize the types of data that can be backed up, either individually or collectively: -| Data type | Description | Location | -|---------------------|------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------| +| Data type | Description | Location | +|---------------------|------------------------------------------------------|-----------------------------------------------------------------| | Agent configuration | Files controlling configuration of the Netdata Agent | [config directory](/docs/netdata-agent/configuration/README.md) | -| Metrics | Database files | /var/cache/netdata | -| Identity | Claim token, API key and some other files | /var/lib/netdata | - +| Metrics | Database files | /var/cache/netdata | +| Identity | Claim token, API key and some other files | /var/lib/netdata | ## Scenarios ### Backing up to restore data in case of a node failure -In this standard scenario, you are backing up your Netdata Agent in case of a node failure or data corruption so that the metrics and the configuration can be recovered. The purpose is not to backup/restore the application itself. +In this standard scenario, you’re backing up your Netdata Agent in case of a node failure or data corruption so that the metrics and the configuration can be recovered. The purpose is not to backup/restore the application itself. -1. Verify that the directory paths in the table above contain the information you expect. +1. Verify that the directory paths in the table above contain the information you expect. > **Note** > The specific paths may vary depending on installation method, Operating System, and whether it is a Docker/Kubernetes deployment. 2. It is recommended that you [stop the Netdata Agent](/docs/netdata-agent/start-stop-restart.md) when backing up the Metrics/database files. - Backing up the Agent configuration and Identity folders is straightforward as they should not be changing very frequently. + Backing up the Agent configuration and Identity folders is straightforward as they shouldn’t be changing very frequently. 3. Using a backup tool such as `tar` you will need to run the backup as _root_ or as the _netdata_ user to access all the files in the directories. - - ``` + + ```bash sudo tar -cvpzf netdata_backup.tar.gz /etc/netdata/ /var/cache/netdata /var/lib/netdata ``` - + Stopping the Netdata agent is typically necessary to back up the database files of the Netdata Agent. If you want to minimize the gap in metrics caused by stopping the Netdata Agent, consider implementing a backup job or script that follows this sequence: - + - Backup the Agent configuration Identity directories - Stop the Netdata service - Backup up the database files @@ -46,25 +45,25 @@ If you want to minimize the gap in metrics caused by stopping the Netdata Agent, ### Restoring Netdata -1. Ensure that the Netdata agent is installed and is [stopped](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) +1. Ensure that the Netdata agent is installed and is [stopped](/docs/netdata-agent/start-stop-restart.md) If you plan to deploy the Agent and restore a backup on top of it, then you might find it helpful to use the [`--dont-start-it`](/packaging/installer/methods/kickstart.md#other-options) option upon installation. - ``` + ```bash wget -O /tmp/netdata-kickstart.sh https://get.netdata.cloud/kickstart.sh && sh /tmp/netdata-kickstart.sh --dont-start-it ``` - - > **Note** - > If you are going to restore the database files then you should first ensure that the Metrics directory is empty. - > - > ``` + + > **Note** + > If you are going to restore the database files, then you should first ensure that the Metrics directory is empty. + > + > ```bash > sudo rm -Rf /var/cache/netdata > ``` 2. Restore the backup from the archive - ``` + ```bash sudo tar -xvpzf /path/to/netdata_backup.tar.gz -C / ``` -3. [Start the Netdata agent](/packaging/installer/README.md#maintaining-a-netdata-agent-installation) +3. [Start the Netdata agent](/docs/netdata-agent/start-stop-restart.md) diff --git a/docs/netdata-agent/configuration/README.md b/docs/netdata-agent/configuration/README.md index 097fb931..abe51131 100644 --- a/docs/netdata-agent/configuration/README.md +++ b/docs/netdata-agent/configuration/README.md @@ -1,21 +1,28 @@ # Netdata Agent Configuration -The main Netdata agent configuration is `netdata.conf`. +> **Info** +> +> Netdata Cloud lets you configure Agents on the fly. Check the [Dynamic Configuration Manager](/docs/netdata-agent/configuration/dynamic-configuration.md) documentation for details. + +The main Netdata Agent configuration is `netdata.conf`. ## The Netdata config directory -On most Linux systems, by using our [recommended one-line installation](/packaging/installer/README.md#install-on-linux-with-one-line-installer), the **Netdata config +On most Linux systems, the **Netdata config directory** will be `/etc/netdata/`. The config directory contains several configuration files with the `.conf` extension, a few directories, and a shell script named `edit-config`. > Some operating systems will use `/opt/netdata/etc/netdata/` as the config directory. If you're not sure where yours > is, navigate to `http://NODE:19999/netdata.conf` in your browser, replacing `NODE` with the IP address or hostname of -> your node, and find the `# config directory = ` setting. The value listed is the config directory for your system. +> your node, and find the `# config directory =` setting. The value listed is the config directory for your system. All of Netdata's documentation assumes that your config directory is at `/etc/netdata`, and that you're running any scripts from inside that directory. +## Edit a configuration file using `edit-config` + +We recommend the use of the `edit-config` script for configuration changes. -## edit `netdata.conf` +It exists inside your config directory (read above) and helps manage and safely edit configuration files. To edit `netdata.conf`, run this on your terminal: @@ -28,9 +35,9 @@ Your editor will open. ## downloading `netdata.conf` -The running version of `netdata.conf` can be downloaded from a running Netdata agent, at this URL: +The running version of `netdata.conf` can be downloaded from a running Netdata Agent, at this URL: -``` +```url http://agent-ip:19999/netdata.conf ``` @@ -40,4 +47,3 @@ You can save and use this version, using these commands: cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata curl -ksSLo /tmp/netdata.conf.new http://localhost:19999/netdata.conf && sudo mv -i /tmp/netdata.conf.new netdata.conf ``` - diff --git a/docs/netdata-agent/configuration/anonymous-telemetry-events.md b/docs/netdata-agent/configuration/anonymous-telemetry-events.md index b943ea9a..4d48de4a 100644 --- a/docs/netdata-agent/configuration/anonymous-telemetry-events.md +++ b/docs/netdata-agent/configuration/anonymous-telemetry-events.md @@ -1,30 +1,22 @@ -<!-- -title: "Anonymous telemetry events" -custom_edit_url: https://github.com/netdata/netdata/edit/master/docs/netdata-agent/configuration/anonymous-telemetry-events.md -sidebar_label: "Anonymous telemetry events" -learn_status: "Published" -learn_rel_path: "Configuration" ---> - # Anonymous telemetry events -By default, Netdata collects anonymous usage information from the open-source monitoring agent. For agent events like start,stop,crash etc we use our own cloud function in GCP. For frontend telemetry (pageviews etc.) on the agent dashboard itself we use the open-source +By default, Netdata collects anonymous usage information from the open-source monitoring agent. For agent events like start, stop, crash, etc. we use our own cloud function in GCP. For frontend telemetry (page views etc.) on the agent dashboard itself, we use the open-source product analytics platform [PostHog](https://github.com/PostHog/posthog). We are strongly committed to your [data privacy](https://netdata.cloud/privacy/). We use the statistics gathered from this information for two purposes: -1. **Quality assurance**, to help us understand if Netdata behaves as expected, and to help us classify repeated - issues with certain distributions or environments. +1. **Quality assurance**, to help us understand if Netdata behaves as expected, and to help us classify repeated + issues with certain distributions or environments. -2. **Usage statistics**, to help us interpret how people use the Netdata agent in real-world environments, and to help - us identify how our development/design decisions influence the community. +2. **Usage statistics**, to help us interpret how people use the Netdata agent in real-world environments, and to help + us identify how our development/design decisions influence the community. Netdata collects usage information via two different channels: -- **Agent dashboard**: We use the [PostHog JavaScript integration](https://posthog.com/docs/integrations/js-integration) (with sensitive event attributes overwritten to be anonymized) to send product usage events when you access an [Agent's dashboard](/docs/dashboards-and-charts/README.md). -- **Agent backend**: The `netdata` daemon executes the [`anonymous-statistics.sh`](https://github.com/netdata/netdata/blob/6469cf92724644f5facf343e4bdd76ac0551a418/daemon/anonymous-statistics.sh.in) script when Netdata starts, stops cleanly, or fails. +- **Agent dashboard**: We use the [PostHog JavaScript integration](https://posthog.com/docs/integrations/js-integration) (with sensitive event attributes overwritten to be anonymized) to send product usage events when you access an [Agent's dashboard](/docs/dashboards-and-charts/README.md). +- **Agent backend**: The `netdata` daemon executes the [`anonymous-statistics.sh`](https://github.com/netdata/netdata/blob/6469cf92724644f5facf343e4bdd76ac0551a418/daemon/anonymous-statistics.sh.in) script when Netdata starts, stops cleanly, or fails. You can opt-out from sending anonymous statistics to Netdata through three different [opt-out mechanisms](#opt-out). @@ -32,7 +24,7 @@ You can opt-out from sending anonymous statistics to Netdata through three diffe When you kick off an Agent dashboard session by visiting `http://NODE:19999`, Netdata initializes a PostHog session and masks various event attributes. -_Note_: You can see the relevant code in the [dashboard repository](https://github.com/netdata/dashboard/blob/master/src/domains/global/sagas.ts#L107) where the `window.posthog.register()` call is made. +_Note_: You can see the relevant code in the [dashboard repository](https://github.com/netdata/dashboard/blob/master/src/domains/global/sagas.ts#L107) where the `window.posthog.register()` call is made. ```JavaScript window.posthog.register({ @@ -52,28 +44,28 @@ variable is controlled via the [opt-out mechanism](#opt-out). ## Agent Backend - Anonymous Statistics Script Every time the daemon is started or stopped and every time a fatal condition is encountered, Netdata uses the anonymous -statistics script to collect system information and send it to the Netdata telemetry cloud function via an http call. The information collected for all +statistics script to collect system information and send it to the Netdata telemetry cloud function via a http call. The information collected for all events is: -- Netdata version -- OS name, version, id, id_like -- Kernel name, version, architecture -- Virtualization technology -- Containerization technology +- Netdata version +- OS name, version, id, id_like +- Kernel name, version, architecture +- Virtualization technology +- Containerization technology -Furthermore, the FATAL event sends the Netdata process & thread name, along with the source code function, source code +Furthermore, the FATAL event sends the Netdata process and thread name, along with the source code function, source code filename and source code line number of the fatal error. Starting with v1.21, we additionally collect information about: -- Failures to build the dependencies required to use Cloud features. -- Unavailability of Cloud features in an agent. -- Failures to connect to the Cloud in case the [connection process](/src/claim/README.md) has been completed. This includes error codes - to inform the Netdata team about the reason why the connection failed. +- Failures to build the dependencies required to use Cloud features. +- Unavailability of Cloud features in an agent. +- Failures to connect to the Cloud in case the [connection process](/src/claim/README.md) has been completed. This includes error codes + to inform the Netdata team about the reason why the connection failed. To see exactly what and how is collected, you can review the script template `daemon/anonymous-statistics.sh.in`. The template is converted to a bash script called `anonymous-statistics.sh`, installed under the Netdata `plugins -directory`, which is usually `/usr/libexec/netdata/plugins.d`. +directory`, which is usually `/usr/libexec/netdata/plugins.d`. ## Opt-out @@ -87,17 +79,15 @@ installation, including manual, offline, and macOS installations. Create the fil **Pass the option `--disable-telemetry` to any of the installer scripts in the [installation docs](/packaging/installer/README.md).** You can append this option during the initial installation or a manual update. You can also export the environment variable `DISABLE_TELEMETRY` with a non-zero or non-empty value -(e.g: `export DISABLE_TELEMETRY=1`). +(e.g.,: `export DISABLE_TELEMETRY=1`). When using Docker, **set your `DISABLE_TELEMETRY` environment variable to `1`.** You can set this variable with the following command: `export DISABLE_TELEMETRY=1`. When creating a container using Netdata's [Docker image](/packaging/docker/README.md#create-a-new-netdata-agent-container) for the first time, this variable will disable -the anonymous statistics script inside of the container. +the anonymous statistics script inside the container. Each of these opt-out processes does the following: -- Prevents the daemon from executing the anonymous statistics script. -- Forces the anonymous statistics script to exit immediately. -- Stops the PostHog JavaScript snippet, which remains on the dashboard, from firing and sending any data to the Netdata PostHog. - - +- Prevents the daemon from executing the anonymous statistics script. +- Forces the anonymous statistics script to exit immediately. +- Stops the PostHog JavaScript snippet, which remains on the dashboard, from firing and sending any data to the Netdata PostHog. diff --git a/docs/netdata-agent/configuration/cheatsheet.md b/docs/netdata-agent/configuration/cheatsheet.md index 3e142869..ecd8e8a8 100644 --- a/docs/netdata-agent/configuration/cheatsheet.md +++ b/docs/netdata-agent/configuration/cheatsheet.md @@ -1,8 +1,8 @@ # Useful management and configuration actions -Below you will find some of the most common actions that one can take while using Netdata. You can use this page as a quick reference for installing Netdata, connecting a node to the Cloud, properly editing the configuration, accessing Netdata's API, and more! +Below are some of the most common actions one can take while using Netdata. You can use this page as a quick reference for installing Netdata, connecting a node to the Cloud, properly editing the configuration, accessing Netdata's API, and more! -### Install Netdata +## Install Netdata ```bash wget -O /tmp/netdata-kickstart.sh https://get.netdata.cloud/kickstart.sh && sh /tmp/netdata-kickstart.sh @@ -11,12 +11,12 @@ wget -O /tmp/netdata-kickstart.sh https://get.netdata.cloud/kickstart.sh && sh / curl https://get.netdata.cloud/kickstart.sh > /tmp/netdata-kickstart.sh && sh /tmp/netdata-kickstart.sh ``` -#### Connect a node to Netdata Cloud +### Connect a node to Netdata Cloud To do so, sign in to Netdata Cloud, on your Space under the Nodes tab, click `Add Nodes` and paste the provided command into your node’s terminal and run it. You can also copy the Claim token and pass it to the installation script with `--claim-token` and re-run it. -### Configuration +## Configuration **Netdata's config directory** is `/etc/netdata/` but in some operating systems it might be `/opt/netdata/etc/netdata/`. Look for the `# config directory =` line over at `http://NODE_IP:19999/netdata.conf` to find your config directory. @@ -25,63 +25,19 @@ From within that directory you can run `sudo ./edit-config netdata.conf` **to ed You can edit other config files too, by specifying their filename after `./edit-config`. You are expected to use this method in all following configuration changes. -<!-- #### Edit Netdata's other config files (examples): - -- `$ sudo ./edit-config apps_groups.conf` -- `$ sudo ./edit-config ebpf.conf` -- `$ sudo ./edit-config health.d/load.conf` -- `$ sudo ./edit-config go.d/prometheus.conf` - -#### View the running Netdata configuration: `http://NODE:19999/netdata.conf` - -> Replace `NODE` with the IP address or hostname of your node. Often `localhost`. - -## Metrics collection & retention - -You can tweak your settings in the netdata.conf file. -📄 [Find your netdata.conf file](/src/daemon/config/README.md) - -Open a new terminal and navigate to the netdata.conf file. Use the edit-config script to make changes: `sudo ./edit-config netdata.conf` - -The most popular settings to change are: - -#### Increase metrics retention (4GiB) - -``` -sudo ./edit-config netdata.conf -``` - -``` -[global] - dbengine multihost disk space = 4096 -``` - -#### Reduce the collection frequency (every 5 seconds) - -``` -sudo ./edit-config netdata.conf -``` - -``` -[global] - update every = 5 -``` --> - ---- - -#### Enable/disable plugins (groups of collectors) +### Enable/disable plugins (groups of collectors) ```bash sudo ./edit-config netdata.conf ``` -```conf +```text [plugins] go.d = yes # enabled node.d = no # disabled ``` -#### Enable/disable specific collectors +### Enable/disable specific collectors ```bash sudo ./edit-config go.d.conf # edit a plugin's config @@ -89,24 +45,18 @@ sudo ./edit-config go.d.conf # edit a plugin's config ```yaml modules: - activemq: no # disabled - cockroachdb: yes # enabled + activemq: no # disabled + cockroachdb: yes # enabled ``` -#### Edit a collector's config +### Edit a collector's config ```bash sudo ./edit-config go.d/mysql.conf ``` -### Alerts & notifications - -<!-- #### Add a new alert +## Alerts & notifications -``` -sudo touch health.d/example-alert.conf -sudo ./edit-config health.d/example-alert.conf -``` --> After any change, reload the Netdata health configuration: ```bash @@ -115,32 +65,23 @@ netdatacli reload-health killall -USR2 netdata ``` -#### Configure a specific alert +### Configure a specific alert ```bash sudo ./edit-config health.d/example-alert.conf ``` -#### Silence a specific alert +### Silence a specific alert ```bash sudo ./edit-config health.d/example-alert.conf ``` -``` +```text to: silent ``` -<!-- #### Disable alerts and notifications - -```conf -[health] - enabled = no -``` --> - ---- - -### Manage the daemon +## Manage the daemon | Intent | Action | |:----------------------------|------------------------------------------------------------:| @@ -151,65 +92,22 @@ sudo ./edit-config health.d/example-alert.conf | View error logs | `less /var/log/netdata/error.log` | | View collectors logs | `less /var/log/netdata/collector.log` | -#### Change the port Netdata listens to (example, set it to port 39999) +### Change the port Netdata listens to (example, set it to port 39999) -```conf +```text [web] default port = 39999 ``` -### See metrics and dashboards +## See metrics and dashboards -#### Netdata Cloud: `https://app.netdata.cloud` +### Netdata Cloud: `https://app.netdata.cloud` -#### Local dashboard: `https://NODE:19999` +### Local dashboard: `https://NODE:19999` > Replace `NODE` with the IP address or hostname of your node. Often `localhost`. -### Access the Netdata API +## Access the Netdata API You can access the API like this: `http://NODE:19999/api/VERSION/REQUEST`. If you want to take a look at all the API requests, check our API page at <https://learn.netdata.cloud/api> -<!-- -## Interact with charts - -| Intent | Action | -| -------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | -| Stop a chart from updating | `click` | -| Zoom | **Cloud** <br/> use the `zoom in` and `zoom out` buttons on any chart (upper right corner) <br/><br/> **Agent**<br/>`SHIFT` or `ALT` + `mouse scrollwheel` <br/> `SHIFT` or `ALT` + `two-finger pinch` (touchscreen) <br/> `SHIFT` or `ALT` + `two-finger scroll` (touchscreen) | -| Zoom to a specific timeframe | **Cloud**<br/>use the `select and zoom` button on any chart and then do a `mouse selection` <br/><br/> **Agent**<br/>`SHIFT` + `mouse selection` | -| Pan forward or back in time | `click` & `drag` <br/> `touch` & `drag` (touchpad/touchscreen) | -| Select a certain timeframe | `ALT` + `mouse selection` <br/> WIP need to evaluate this `command?` + `mouse selection` (macOS) | -| Reset to default auto refreshing state | `double click` | --> - -<!-- ## Dashboards - -#### Disable the local dashboard - -Use the `edit-config` script to edit the `netdata.conf` file. - -``` -[web] -mode = none -``` --> - -<!-- #### Opt out from anonymous statistics - -``` -sudo touch .opt-out-from-anonymous-statistics -``` --> - -<!-- ## Understanding the dashboard - -**Charts**: A visualization displaying one or more collected/calculated metrics in a time series. Charts are generated -by collectors. - -**Dimensions**: Any value shown on a chart, which can be raw or calculated values, such as percentages, averages, -minimums, maximums, and more. - -**Families**: One instance of a monitored hardware or software resource that needs to be monitored and displayed -separately from similar instances. Example, disks named -**sda**, **sdb**, **sdc**, and so on. - -**Contexts**: A grouping of charts based on the types of metrics collected and visualized. -**disk.io**, **disk.ops**, and **disk.backlog** are all contexts. --> diff --git a/docs/netdata-agent/configuration/common-configuration-changes.md b/docs/netdata-agent/configuration/common-configuration-changes.md index e9d8abad..0eda7dd8 100644 --- a/docs/netdata-agent/configuration/common-configuration-changes.md +++ b/docs/netdata-agent/configuration/common-configuration-changes.md @@ -19,11 +19,7 @@ changes reflected in those visualizations due to the way Netdata Cloud proxies m ### Increase the long-term metrics retention period -Read our doc -on [increasing long-term metrics storage](/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md) -for details, including a -[calculator](/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md#calculate-the-system-resources-ram-disk-space-needed-to-store-metrics) -to help you determine the exact settings for your desired retention period. +Read our doc on [increasing long-term metrics storage](/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md) for details. ### Reduce the data collection frequency @@ -33,7 +29,7 @@ of `netdata.conf` so that it is greater than `1`. An `update every` of `5` means the Netdata Agent enforces a _minimum_ collection frequency of 5 seconds. -```conf +```text [global] update every = 5 ``` @@ -56,7 +52,7 @@ for that specific module. Uncomment the line and change its value to `no`. ## Modify alerts and notifications -Netdata's health monitoring watchdog uses hundreds of preconfigured health entities, with intelligent thresholds, to +Netdata's health monitoring watchdog uses hundreds of pre-configured health entities, with intelligent thresholds, to generate warning and critical alerts for most production systems and their applications without configuration. However, each alert and notification method is completely customizable. @@ -94,7 +90,7 @@ Because the source path contains `health.d/cpu.conf`, run `sudo edit-config heal Open the configuration file for that alert and set the `to` line to `silent`. -```conf +```text template: disk_fill_rate on: disk.space lookup: max -1s at -30m unaligned of avail @@ -111,7 +107,7 @@ section of `netdata.conf`. ### Enable alert notifications -Open `health_alarm_notify.conf` for editing. First, read the [enabling notifications](/docs/alerts-and-notifications/notifications/README.md#netdata-agent) doc +Open `health_alarm_notify.conf` for editing. First, read the [enabling notifications](/src/health/notifications/README.md) doc for an example of the process using Slack, then click on the link to your preferred notification method to find documentation for that specific endpoint. @@ -143,6 +139,6 @@ The following restrictions apply to host label names: - Names cannot start with `_`, but it can be present in other parts of the name. - Names only accept alphabet letters, numbers, dots, and dashes. -The policy for values is more flexible, but you can not use exclamation marks (`!`), whitespaces (` `), single quotes +The policy for values is more flexible, but you cannot use exclamation marks (`!`), whitespaces (` `), single quotes (`'`), double quotes (`"`), or asterisks (`*`), because they are used to compare label values in health alerts and templates. diff --git a/docs/netdata-agent/configuration/dynamic-configuration.md b/docs/netdata-agent/configuration/dynamic-configuration.md index 7064abf9..c419a82d 100644 --- a/docs/netdata-agent/configuration/dynamic-configuration.md +++ b/docs/netdata-agent/configuration/dynamic-configuration.md @@ -1,6 +1,8 @@ # Dynamic Configuration Manager -**Netdata Cloud paid subscription required.** +> **Info** +> +> Netdata Cloud paid subscription is required. The Dynamic Configuration Manager allows direct configuration of collectors and alerts through the Netdata UI. This feature allows users to: @@ -11,7 +13,7 @@ The Dynamic Configuration Manager allows direct configuration of collectors and > **Info** > -> To understand what actions users can perform based on their role, refer to the [Role Based Access documentation](/docs/netdata-cloud/authentication-and-authorization/role-based-access-model.md#dynamic-configuration-manager). +> To understand what actions users can perform based on their role, refer to the [Role-Based Access documentation](/docs/netdata-cloud/authentication-and-authorization/role-based-access-model.md#dynamic-configuration-manager). ## Collectors @@ -35,9 +37,9 @@ A job represents a running instance of a module with a specific configuration. T Every job has a designated "source type" indicating its origin: - **Stock**: Pre-installed with Netdata and provides basic data collection for common services. -- **User**: Originates from user-created files on the node. +- **User**: Created from user-defined configuration files on the node. - **Discovered**: Automatically generated by Netdata upon discovering a service running on the node. -- **Dynamic Configuration**: Created and managed using the Dynamic Configuration Manager. +- **Dynamic Configuration**: Managed and created through the Dynamic Configuration Manager. You can manage individual jobs using the following actions: @@ -51,7 +53,7 @@ You can manage individual jobs using the following actions: ## Health -Each entry in the Health tab contains an Alert template, that then is used to create Alerts. +Each entry in the Health tab contains an Alert template that then is used to create Alerts. The functionality in the main view is the same as with the [Collectors tab](#collectors). diff --git a/docs/netdata-agent/configuration/optimize-the-netdata-agents-performance.md b/docs/netdata-agent/configuration/optimize-the-netdata-agents-performance.md index 6acbd497..ff51fbf7 100644 --- a/docs/netdata-agent/configuration/optimize-the-netdata-agents-performance.md +++ b/docs/netdata-agent/configuration/optimize-the-netdata-agents-performance.md @@ -1,9 +1,9 @@ # How to optimize the Netdata Agent's performance We designed the Netdata Agent to be incredibly lightweight, even when it's collecting a few thousand dimensions every -second and visualizing that data into hundreds of charts. However, the default settings of the Netdata Agent are not -optimized for performance, but for a simple, standalone setup. We want the first install to give you something you can -run without any configuration. Most of the settings and options are enabled, since we want you to experience the full +second and visualizing that data into hundreds of charts. However, the default settings of the Netdata Agent aren’t +optimized for performance, but for a simple, standalone setup. We want the first installation to give you something you can +run without any configuration. Most of the settings and options are enabled since we want you to experience the full thing. By default, Netdata will automatically detect applications running on the node it is installed to start collecting @@ -17,16 +17,16 @@ Netdata for production use. The following table summarizes the effect of each optimization on the CPU, RAM and Disk IO utilization in production. -| Optimization | CPU | RAM | Disk IO | -|-------------------------------------------------------------------------------------------------------------------------------|--------------------|--------------------|--------------------| -| [Use streaming and replication](#use-streaming-and-replication) | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | -| [Disable unneeded plugins or collectors](#disable-unneeded-plugins-or-collectors) | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | -| [Reduce data collection frequency](#reduce-collection-frequency) | :heavy_check_mark: | | :heavy_check_mark: | +| Optimization | CPU | RAM | Disk IO | +|-----------------------------------------------------------------------------------------------------------------------------------|--------------------|--------------------|--------------------| +| [Use streaming and replication](#use-streaming-and-replication) | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | +| [Disable unneeded plugins or collectors](#disable-unneeded-plugins-or-collectors) | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | +| [Reduce data collection frequency](#reduce-collection-frequency) | :heavy_check_mark: | | :heavy_check_mark: | | [Change how long Netdata stores metrics](/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md) | | :heavy_check_mark: | :heavy_check_mark: | -| [Use a different metric storage database](/src/database/README.md) | | :heavy_check_mark: | :heavy_check_mark: | -| [Disable machine learning](#disable-machine-learning) | :heavy_check_mark: | | | -| [Use a reverse proxy](#run-netdata-behind-a-proxy) | :heavy_check_mark: | | | -| [Disable/lower gzip compression for the agent dashboard](#disablelower-gzip-compression-for-the-dashboard) | :heavy_check_mark: | | | +| [Use a different metric storage database](/src/database/README.md) | | :heavy_check_mark: | :heavy_check_mark: | +| [Disable machine learning](#disable-machine-learning) | :heavy_check_mark: | | | +| [Use a reverse proxy](#run-netdata-behind-a-proxy) | :heavy_check_mark: | | | +| [Disable/lower gzip compression for the agent dashboard](#disablelower-gzip-compression-for-the-dashboard) | :heavy_check_mark: | | | ## Resources required by a default Netdata installation @@ -39,15 +39,15 @@ You can configure almost all aspects of data collection/retention, and certain a Expect about: - 1-3% of a single core for the netdata core -- 1-3% of a single core for the various collectors (e.g. go.d.plugin, apps.plugin) +- 1-3% of a single core for the various collectors (e.g., go.d.plugin, apps.plugin) - 5-10% of a single core, when ML training runs Your experience may vary depending on the number of metrics collected, the collectors enabled and the specific -environment they run on, i.e. the work they have to do to collect these metrics. +environment they run on, i.e., the work they have to do to collect these metrics. As a general rule, for modern hardware and VMs, the total CPU consumption of a standalone Netdata installation, including all its components, should be below 5 - 15% of a single core. For example, on 8 core server it will use only -0.6% - 1.8% of a total CPU capacity, depending on the CPU characteristics. +0.6% - 1.8% of the total CPU capacity, depending on the CPU characteristics. The Netdata Agent runs with the lowest possible [process scheduling policy](/src/daemon/README.md#netdata-process-scheduling-policy), @@ -55,7 +55,7 @@ which is `nice 19`, and uses the `idle` process scheduler. Together, these setti resources when the node has CPU resources to space. If the node reaches 100% CPU utilization, the Agent is stopped first to ensure your applications get any available resources. -To reduce CPU usage you can (either one or a combination of the following actions): +To reduce CPU usage, you can (either one or a combination of the following actions): 1. [Disable machine learning](#disable-machine-learning), 2. [Use streaming and replication](#use-streaming-and-replication), @@ -77,19 +77,18 @@ To estimate and control memory consumption, you can (either one or a combination ### Disk footprint and I/O -By default, Netdata should not use more than 1GB of disk space, most of which is dedicated for storing metric data and -metadata. For typical installations collecting 2000 - 3000 metrics, this storage should provide a few days of +By default, Netdata shouldn’t use more than 1GB of disk space, most of which is dedicated to storing metric data and +metadata. For typical installations collecting 2000–3000 metrics, this storage should provide a few days of high-resolution retention (per second), about a month of mid-resolution retention (per minute) and more than a year of low-resolution retention (per hour). -Netdata spreads I/O operations across time. For typical standalone installations there should be a few write operations -every 5-10 seconds of a few kilobytes each, occasionally up to 1MB. In addition, under heavy load, collectors that +Netdata spreads I/O operations across time. For typical standalone installations, there should be a few write operations +every 5–10 seconds of a few kilobytes each, occasionally up to 1MB. In addition, under a heavy load, collectors that require disk I/O may stop and show gaps in charts. -To optimize your disk footprint in any aspect described below you can: +To optimize your disk footprint in any aspect described below, you can: - -To configure retention, you can: +To configure retention, you can: 1. [Change how long Netdata stores metrics](/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md). @@ -97,7 +96,6 @@ To control disk I/O: 1. [Use a different metric storage database](/src/database/README.md), - Minimize deployment impact on the production system by optimizing disk footprint: 1. [Using streaming and replication](#use-streaming-and-replication) @@ -118,7 +116,7 @@ and makes it easier to configure or disable alerts and agent notifications. The parents by default run health checks for each child, as long as the child is connected (the details are in `stream.conf`). On the child nodes you should add to `netdata.conf` the following: -```conf +```text [health] enabled = no ``` @@ -131,19 +129,18 @@ See [using a different metric storage database](/src/database/README.md). If you know that you don't need an [entire plugin or a specific collector](/src/collectors/README.md#collector-architecture-and-terminology), -you can disable any of them. Keep in mind that if a plugin/collector has nothing to do, it simply shuts down and does -not consume system resources. You will only improve the Agent's performance by disabling plugins/collectors that are +you can disable any of them. Keep in mind that if a plugin/collector has nothing to do, it simply shuts down and doesn’t consume system resources. You will only improve the Agent's performance by disabling plugins/collectors that are actively collecting metrics. Open `netdata.conf` and scroll down to the `[plugins]` section. To disable any plugin, uncomment it and set the value to `no`. For example, to explicitly keep the `proc` and `go.d` plugins enabled while disabling `python.d` and `charts.d`. -```conf +```text [plugins] proc = yes - python.d = no - charts.d = no - go.d = yes + python.d = no + charts.d = no + go.d = yes ``` Disable specific collectors by opening their respective plugin configuration files, uncommenting the line for the @@ -157,11 +154,11 @@ sudo ./edit-config charts.d.conf For example, to disable a few Python collectors: -```conf +```text modules: - apache: no - dockerd: no - fail2ban: no + apache: no + dockerd: no + fail2ban: no ``` ## Reduce collection frequency @@ -181,7 +178,7 @@ If you change this to `2`, Netdata enforces a minimum `update every` setting of other second, which will effectively halve CPU utilization. Set this to `5` or `10` to collect metrics every 5 or 10 seconds, respectively. -```conf +```text [global] update every = 5 ``` @@ -199,7 +196,7 @@ an [internal_plugin/collector](/src/collectors/README.md#collector-architecture- open `netdata.conf` and find the appropriate section. For example, to reduce the frequency of the `apps` plugin, which collects and visualizes metrics on application resource utilization: -```conf +```text [plugin:apps] update every = 5 ``` @@ -208,7 +205,7 @@ To [configure an individual collector](/src/collectors/REFERENCE.md#configure-a- open its specific configuration file with `edit-config` and look for the `update_every` setting. For example, to reduce the frequency of the `nginx` collector, run `sudo ./edit-config go.d/nginx.conf`: -```conf +```text # [ GLOBAL ] update_every: 10 ``` @@ -229,7 +226,7 @@ on [streaming and replication](/docs/observability-centralization-points/README. Automated anomaly detection may be a powerful tool, but we recommend it to only be enabled on Netdata parents that sit outside your production infrastructure, or if you have cpu and memory to spare. You can disable ML with the following: -```conf +```text [ml] enabled = no ``` @@ -251,16 +248,15 @@ looking at the local Agent dashboard. To disable gzip compression, open `netdata.conf` and find the `[web]` section: -```conf +```text [web] enable gzip compression = no ``` Or to lower the default compression level: -```conf +```text [web] enable gzip compression = yes gzip compression level = 1 ``` - diff --git a/docs/netdata-agent/configuration/optimizing-metrics-database/README.md b/docs/netdata-agent/configuration/optimizing-metrics-database/README.md index fdbd3b69..c5769ccd 100644 --- a/docs/netdata-agent/configuration/optimizing-metrics-database/README.md +++ b/docs/netdata-agent/configuration/optimizing-metrics-database/README.md @@ -1,3 +1,3 @@ # Optimizing Metrics Database Overview -This section contains documentation to help you understand how the metrics DB works, understand the key features and configure them to suit your needs.
\ No newline at end of file +This section contains documentation to help you understand how the metrics DB works, understand the key features and configure them to suit your needs. diff --git a/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md b/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md index 8a8659ef..2282cbc4 100644 --- a/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md +++ b/docs/netdata-agent/configuration/optimizing-metrics-database/change-metrics-storage.md @@ -7,9 +7,9 @@ space**. This provides greater control and helps you optimize storage usage for | Tier | Resolution | Time Limit | Size Limit (min 256 MB) | |:----:|:-------------------:|:----------:|:-----------------------:| -| 0 | high (per second) | 14 days | 1 GiB | -| 1 | middle (per minute) | 3 months | 1 GiB | -| 2 | low (per hour) | 2 years | 1 GiB | +| 0 | high (per second) | 14d | 1 GiB | +| 1 | middle (per minute) | 3mo | 1 GiB | +| 2 | low (per hour) | 2y | 1 GiB | > **Note**: If a user sets a disk space size less than 256 MB for a tier, Netdata will automatically adjust it to 256 MB. @@ -17,7 +17,7 @@ With these defaults, Netdata requires approximately 4 GiB of storage space (incl ## Retention Settings -> **In a parent-child setup**, these settings manage the shared storage space utilized by the Netdata parent agent for +> **In a parent-child setup**, these settings manage the shared storage space used by the Netdata parent agent for > storing metrics collected by both the parent and its child nodes. You can fine-tune retention for each tier by setting a time limit or size limit. Setting a limit to 0 disables it, @@ -32,22 +32,22 @@ retention strategies as shown in the table below: You can change these limits in `netdata.conf`: -``` +```text [db] - mode = dbengine + mode = dbengine storage tiers = 3 # Tier 0, per second data. Set to 0 for no limit. - dbengine tier 0 disk space MB = 1024 - dbengine tier 0 retention days = 14 + dbengine tier 0 retention size = 1GiB + dbengine tier 0 retention time = 14d # Tier 1, per minute data. Set to 0 for no limit. - dbengine tier 1 disk space MB = 1024 - dbengine tier 1 retention days = 90 + dbengine tier 1 retention size = 1GiB + dbengine tier 1 retention time = 3mo # Tier 2, per hour data. Set to 0 for no limit. - dbengine tier 2 disk space MB = 1024 - dbengine tier 2 retention days = 730 + dbengine tier 2 retention size = 1GiB + dbengine tier 2 retention time = 2y ``` ## Monitoring Retention Utilization @@ -58,6 +58,24 @@ your storage space (disk space limits) and time (time limits) are used for metri ## Legacy configuration +### v1.99.0 and prior + +Netdata prior to v2 supports the following configuration options in `netdata.conf`. +They have the same defaults as the latest v2, but the unit of each value is given in the option name, not at the value. + +```text +storage tiers = 3 +# Tier 0, per second data. Set to 0 for no limit. +dbengine tier 0 disk space MB = 1024 +dbengine tier 0 retention days = 14 +# Tier 1, per minute data. Set to 0 for no limit. +dbengine tier 1 disk space MB = 1024 +dbengine tier 1 retention days = 90 +# Tier 2, per hour data. Set to 0 for no limit. +dbengine tier 2 disk space MB = 1024 +dbengine tier 2 retention days = 730 +``` + ### v1.45.6 and prior Netdata versions prior to v1.46.0 relied on a disk space-based retention. @@ -72,17 +90,14 @@ Netdata versions prior to v1.46.0 relied on a disk space-based retention. You can change these limits in `netdata.conf`: -``` +```text [db] - mode = dbengine + mode = dbengine storage tiers = 3 - # Tier 0, per second data dbengine multihost disk space MB = 256 - # Tier 1, per minute data dbengine tier 1 multihost disk space MB = 1024 - # Tier 2, per hour data dbengine tier 2 multihost disk space MB = 1024 ``` @@ -96,7 +111,7 @@ for the parent node and all of its children. To configure the database engine, look for the `page cache size MB` and `dbengine multihost disk space MB` settings in the `[db]` section of your `netdata.conf`. -```conf +```text [db] dbengine page cache size MB = 32 dbengine multihost disk space MB = 256 diff --git a/docs/netdata-agent/configuration/organize-systems-metrics-and-alerts.md b/docs/netdata-agent/configuration/organize-systems-metrics-and-alerts.md index b0094a60..f7f56279 100644 --- a/docs/netdata-agent/configuration/organize-systems-metrics-and-alerts.md +++ b/docs/netdata-agent/configuration/organize-systems-metrics-and-alerts.md @@ -1,49 +1,51 @@ # Organize systems, metrics, and alerts When you use Netdata to monitor and troubleshoot an entire infrastructure, you need sophisticated ways of keeping everything organized. -Netdata allows to organize your observability infrastructure with Spaces, Rooms, virtual nodes, host labels, and metric labels. +Netdata allows organizing your observability infrastructure with Spaces, Rooms, virtual nodes, host labels, and metric labels. ## Spaces and Rooms -[Spaces](/docs/netdata-cloud/organize-your-infrastructure-invite-your-team.md#netdata-cloud-spaces) are used for organization-level or infrastructure-level +[Spaces](/docs/netdata-cloud/organize-your-infrastructure-invite-your-team.md#netdata-cloud-spaces) are used for organization-level or infrastructure-level grouping of nodes and people. A node can only appear in a single space, while people can have access to multiple spaces. -The [Rooms](/docs/netdata-cloud/organize-your-infrastructure-invite-your-team.md#netdata-cloud-rooms) in a space bring together nodes and people in -collaboration areas. Rooms can also be used for fine-tuned -[role based access control](/docs/netdata-cloud/authentication-and-authorization/role-based-access-model.md). +The [Rooms](/docs/netdata-cloud/organize-your-infrastructure-invite-your-team.md#netdata-cloud-rooms) in a space bring together nodes and people in +collaboration areas. Rooms can also be used for fine-tuned +[role-based access control](/docs/netdata-cloud/authentication-and-authorization/role-based-access-model.md). ## Virtual nodes -Netdata’s virtual nodes functionality allows you to define nodes in configuration files and have them be treated as regular nodes -in all of the UI, dashboards, tabs, filters etc. For example, you can create a virtual node each for all your Windows machines -and monitor them as discrete entities. Virtual nodes can help you simplify your infrastructure monitoring and focus on the +Netdata’s virtual nodes functionality allows you to define nodes in configuration files and have them be treated as regular nodes +in all the UI, dashboards, tabs, filters, etc. For example, you can create a virtual node each for all your Windows machines +and monitor them as discrete entities. Virtual nodes can help you simplify your infrastructure monitoring and focus on the individual node that matters. To define your windows server as a virtual node you need to: - * Define virtual nodes in `/etc/netdata/vnodes/vnodes.conf` +* Define virtual nodes in `/etc/netdata/vnodes/vnodes.conf` ```yaml - hostname: win_server1 guid: <value> ``` - Just remember to use a valid guid (On Linux you can use `uuidgen` command to generate one, on Windows just use the `[guid]::NewGuid()` command in PowerShell) - - * Add the vnode config to the data collection job. e.g. in `go.d/windows.conf`: + + Just remember to use a valid guid (On Linux you can use `uuidgen` command to generate one, on Windows just use the `[guid]::NewGuid()` command in PowerShell) + +* Add the vnode config to the data collection job. e.g., in `go.d/windows.conf`: + ```yaml jobs: - name: win_server1 vnode: win_server1 url: http://203.0.113.10:9182/metrics ``` - + ## Host labels Host labels can be extremely useful when: -- You need alerts that adapt to the system's purpose -- You need properly-labeled metrics archiving so you can sort, correlate, and mash-up your data to your heart's content. -- You need to keep tabs on ephemeral Docker containers in a Kubernetes cluster. +* You need alerts that adapt to the system's purpose +* You need properly labeled metrics archiving so you can sort, correlate, and mash-up your data to your heart's content. +* You need to keep tabs on ephemeral Docker containers in a Kubernetes cluster. Let's take a peek into how to create host labels and apply them across a few of Netdata's features to give you more organization power over your infrastructure. @@ -56,16 +58,17 @@ parent-child status, and more. They capture the following: -- Kernel version -- Operating system name and version -- CPU architecture, system cores, CPU frequency, RAM, and disk space -- Whether Netdata is running inside of a container, and if so, the OS and hardware details about the container's host -- Whether Netdata is running inside K8s node -- What virtualization layer the system runs on top of, if any -- Whether the system is a streaming parent or child +* Kernel version +* Operating system name and version +* CPU architecture, system cores, CPU frequency, RAM, and disk space +* Whether Netdata is running inside of a container, and if so, the OS and hardware details about the container's host +* Whether Netdata is running inside K8s node +* What virtualization layer the system runs on top of, if any +* Whether the system is a streaming parent or child If you want to organize your systems without manually creating host labels, try the automatic labels in some of the features below. You can see them under `http://HOST-IP:19999/api/v1/info`, beginning with an underscore `_`. + ```json { ... @@ -87,7 +90,7 @@ sudo ./edit-config netdata.conf Create a new `[host labels]` section defining a new host label and its value for the system in question. Make sure not to violate any of the [host label naming rules](/docs/netdata-agent/configuration/common-configuration-changes.md#organize-nodes-with-host-labels). -```conf +```text [host labels] type = webserver location = us-seattle @@ -126,7 +129,6 @@ read the status of your agent. For example, from a VPS system running Debian 10: } ``` - ### Host labels in streaming You may have noticed the `_is_parent` and `_is_child` automatic labels from above. Host labels are also now @@ -134,12 +136,11 @@ streamed from a child to its parent node, which concentrates an entire infrastru and virtualization information in one place: the parent. Now, if you'd like to remind yourself of how much RAM a certain child node has, you can access -`http://localhost:19999/host/CHILD_HOSTNAME/api/v1/info` and reference the automatically-generated host labels from the +`http://localhost:19999/host/CHILD_HOSTNAME/api/v1/info` and reference the automatically generated host labels from the child system. It's a vastly simplified way of accessing critical information about your infrastructure. > ⚠️ Because automatic labels for child nodes are accessible via API calls, and contain sensitive information like -> kernel and operating system versions, you should secure streaming connections with SSL. See the [streaming -> documentation](/src/streaming/README.md#securing-streaming-communications) for details. You may also want to use +> kernel and operating system versions, you should secure streaming connections with SSL. See the [streaming documentation](/src/streaming/README.md#securing-streaming-with-tlsssl) for details. You may also want to use > [access lists](/src/web/server/README.md#access-lists) or [expose the API only to LAN/localhost > connections](/docs/netdata-agent/securing-netdata-agents.md#expose-netdata-only-in-a-private-lan). @@ -153,23 +154,23 @@ alerts to them. For example, let's use configuration example from earlier: -```conf +```text [host labels] type = webserver location = us-seattle installed = 20200218 ``` -You could now create a new health entity (checking if disk space will run out soon) that applies only to any host +You could now create a new health entity (checking if disk space runs out soon) that applies only to any host labeled `webserver`: ```yaml template: disk_fill_rate - on: disk.space - lookup: max -1s at -30m unaligned of avail - calc: ($this - $avail) / (30 * 60) - every: 15s - host labels: type = webserver + on: disk.space + lookup: max -1s at -30m unaligned of avail + calc: ($this - $avail) / (30 * 60) + every: 15s + host labels: type = webserver ``` Or, by using one of the automatic labels, for only webserver systems running a specific OS: @@ -198,9 +199,9 @@ documentation](/src/health/REFERENCE.md#alert-line-host-labels) for more details If you have enabled any metrics exporting via our experimental [exporters](/src/exporting/README.md), any new host labels you created manually are sent to the destination database alongside metrics. You can change this behavior by -editing `exporting.conf`, and you can even send automatically-generated labels on with exported metrics. +editing `exporting.conf`, and you can even send automatically generated labels on with exported metrics. -```conf +```text [exporting:global] enabled = yes send configured labels = yes @@ -209,7 +210,7 @@ send automatic labels = no You can also change this behavior per exporting connection: -```conf +```text [opentsdb:my_instance3] enabled = yes destination = localhost:4242 @@ -227,27 +228,27 @@ more about exporting, read the [documentation](/src/exporting/README.md). The Netdata aggregate charts allow you to filter and group metrics based on label name-value pairs. -All go.d plugin collectors support the specification of labels at the "collection job" level. Some collectors come with out of the box -labels (e.g. generic Prometheus collector, Kubernetes, Docker and more). But you can also add your own custom labels, by configuring -the data collection jobs. +All go.d plugin collectors support the specification of labels at the "collection job" level. Some collectors come without of the box +labels (e.g. generic Prometheus collector, Kubernetes, Docker and more). But you can also add your own custom labels by configuring +the data collection jobs. -For example, suppose we have a single Netdata agent, collecting data from two remote Apache web servers, located in different data centers. +For example, suppose we have a single Netdata agent, collecting data from two remote Apache web servers, located in different data centers. The web servers are load balanced and provide access to the service "Payments". You can define the following in `go.d.conf`, to be able to group the web requests by service or location: -``` +```yaml jobs: - - name: mywebserver1 + - name: my_webserver1 url: http://host1/server-status?auto labels: service: "Payments" location: "Atlanta" - - name: mywebserver2 + - name: my_webserver2 url: http://host2/server-status?auto labels: service: "Payments" location: "New York" ``` -Of course you may define as many custom label/value pairs as you like, in as many data collection jobs you need. +Of course, you may define as many custom label/value pairs as you like, in as many data collection jobs you need. diff --git a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/README.md b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/README.md index 00fe63af..a0810bb5 100644 --- a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/README.md +++ b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/README.md @@ -1,7 +1,7 @@ # Running the Netdata Agent behind a reverse proxy If you need to access a Netdata agent's user interface or API in a production environment we recommend you put Netdata behind -another web server and secure access to the dashboard via SSL, user authentication and firewall rules. +another web server and secure access to the dashboard via SSL, user authentication and firewall rules. A dedicated web server also provides more robustness and capabilities than the Agent's [internal web server](/src/web/README.md). @@ -12,7 +12,7 @@ We have documented running behind [Lighttpd](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-lighttpd.md), [Caddy](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-caddy.md), and [H2O](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-h2o.md). -If you prefer a different web server, we suggest you follow the documentation for nginx and tell us how you did it +If you prefer a different web server, we suggest you follow the documentation for nginx and tell us how you did it by adding your own "Running behind webserverX" document. When you run Netdata behind a reverse proxy, we recommend you firewall protect all your Netdata servers, so that only the web server IP will be allowed to directly access Netdata. To do this, run this on each of your servers (or use your firewall manager): @@ -26,9 +26,9 @@ The above will prevent anyone except your web server to access a Netdata dashboa You can also use `netdata.conf`: -``` +```text [web] - allow connections from = localhost 1.2.3.4 + allow connections from = localhost 1.2.3.4 ``` Of course, you can add more IPs. diff --git a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-apache.md b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-apache.md index 1f7274d5..23e4ae23 100644 --- a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-apache.md +++ b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-apache.md @@ -1,4 +1,4 @@ -# Netdata via Apache's mod_proxy +# Running Netdata behind Apache's mod_proxy Below you can find instructions for configuring an apache server to: @@ -29,6 +29,7 @@ Also, enable the rewrite module: ```sh sudo a2enmod rewrite ``` + ## Netdata on an existing virtual host On any **existing** and already **working** apache virtual host, you can redirect requests for URL `/netdata/` to one or more Netdata servers. @@ -37,29 +38,29 @@ On any **existing** and already **working** apache virtual host, you can redirec Add the following on top of any existing virtual host. It will allow you to access Netdata as `http://virtual.host/netdata/`. -```conf +```text <VirtualHost *:80> - RewriteEngine On - ProxyRequests Off - ProxyPreserveHost On + RewriteEngine On + ProxyRequests Off + ProxyPreserveHost On + + <Proxy *> + Require all granted + </Proxy> - <Proxy *> - Require all granted - </Proxy> + # Local Netdata server accessed with '/netdata/', at localhost:19999 + ProxyPass "/netdata/" "http://localhost:19999/" connectiontimeout=5 timeout=30 keepalive=on + ProxyPassReverse "/netdata/" "http://localhost:19999/" - # Local Netdata server accessed with '/netdata/', at localhost:19999 - ProxyPass "/netdata/" "http://localhost:19999/" connectiontimeout=5 timeout=30 keepalive=on - ProxyPassReverse "/netdata/" "http://localhost:19999/" + # if the user did not give the trailing /, add it + # for HTTP (if the virtualhost is HTTP, use this) + RewriteRule ^/netdata$ http://%{HTTP_HOST}/netdata/ [L,R=301] + # for HTTPS (if the virtualhost is HTTPS, use this) + #RewriteRule ^/netdata$ https://%{HTTP_HOST}/netdata/ [L,R=301] - # if the user did not give the trailing /, add it - # for HTTP (if the virtualhost is HTTP, use this) - RewriteRule ^/netdata$ http://%{HTTP_HOST}/netdata/ [L,R=301] - # for HTTPS (if the virtualhost is HTTPS, use this) - #RewriteRule ^/netdata$ https://%{HTTP_HOST}/netdata/ [L,R=301] + # rest of virtual host config here - # rest of virtual host config here - </VirtualHost> ``` @@ -67,16 +68,16 @@ Add the following on top of any existing virtual host. It will allow you to acce Add the following on top of any existing virtual host. It will allow you to access multiple Netdata as `http://virtual.host/netdata/HOSTNAME/`, where `HOSTNAME` is the hostname of any other Netdata server you have (to access the `localhost` Netdata, use `http://virtual.host/netdata/localhost/`). -```conf +```text <VirtualHost *:80> - RewriteEngine On - ProxyRequests Off - ProxyPreserveHost On + RewriteEngine On + ProxyRequests Off + ProxyPreserveHost On - <Proxy *> - Require all granted - </Proxy> + <Proxy *> + Require all granted + </Proxy> # proxy any host, on port 19999 ProxyPassMatch "^/netdata/([A-Za-z0-9\._-]+)/(.*)" "http://$1:19999/$2" connectiontimeout=5 timeout=30 keepalive=on @@ -87,8 +88,8 @@ Add the following on top of any existing virtual host. It will allow you to acce # for HTTPS (if the virtualhost is HTTPS, use this) RewriteRule "^/netdata/([A-Za-z0-9\._-]+)$" https://%{HTTP_HOST}/netdata/$1/ [L,R=301] - # rest of virtual host config here - + # rest of virtual host config here + </VirtualHost> ``` @@ -97,7 +98,7 @@ Add the following on top of any existing virtual host. It will allow you to acce If you want to control the servers your users can connect to, replace the `ProxyPassMatch` line with the following. This allows only `server1`, `server2`, `server3` and `server4`. -``` +```text ProxyPassMatch "^/netdata/(server1|server2|server3|server4)/(.*)" "http://$1:19999/$2" connectiontimeout=5 timeout=30 keepalive=on ``` @@ -113,26 +114,28 @@ nano /etc/apache2/sites-available/netdata.conf with this content: -```conf +```text <VirtualHost *:80> - ProxyRequests Off - ProxyPreserveHost On - - ServerName netdata.domain.tld - <Proxy *> - Require all granted - </Proxy> + ProxyRequests Off + ProxyPreserveHost On + + ServerName netdata.domain.tld + + <Proxy *> + Require all granted + </Proxy> - ProxyPass "/" "http://localhost:19999/" connectiontimeout=5 timeout=30 keepalive=on - ProxyPassReverse "/" "http://localhost:19999/" + ProxyPass "/" "http://localhost:19999/" connectiontimeout=5 timeout=30 keepalive=on + ProxyPassReverse "/" "http://localhost:19999/" + + ErrorLog ${APACHE_LOG_DIR}/netdata-error.log + CustomLog ${APACHE_LOG_DIR}/netdata-access.log combined - ErrorLog ${APACHE_LOG_DIR}/netdata-error.log - CustomLog ${APACHE_LOG_DIR}/netdata-access.log combined </VirtualHost> ``` -Enable the VirtualHost: +Enable the VirtualHost: ```sh sudo a2ensite netdata.conf && service apache2 reload @@ -142,15 +145,15 @@ sudo a2ensite netdata.conf && service apache2 reload _Assuming the main goal is to make Netdata running in HTTPS._ -1. Make a subdomain for Netdata on which you enable and force HTTPS - You can use a free Let's Encrypt certificate -2. Go to "Apache & nginx Settings", and in the following section, add: - -```conf -RewriteEngine on -RewriteRule (.*) http://localhost:19999/$1 [P,L] -``` +1. Make a subdomain for Netdata on which you enable and force HTTPS - You can use a free Let's Encrypt certificate +2. Go to "Apache & nginx Settings", and in the following section, add: -3. Optional: If your server is remote, then just replace "localhost" with your actual hostname or IP, it just works. + ```text + RewriteEngine on + RewriteRule (.*) http://localhost:19999/$1 [P,L] + ``` + +3. Optional: If your server is remote, then just replace "localhost" with your actual hostname or IP, it just works. Repeat the operation for as many servers as you need. @@ -165,49 +168,49 @@ Then, generate password for user `netdata`, using `htpasswd -c /etc/apache2/.htp **Apache 2.2 Example:**\ Modify the virtual host with these: -```conf - # replace the <Proxy *> section - <Proxy *> - Order deny,allow - Allow from all - </Proxy> - - # add a <Location /netdata/> section - <Location /netdata/> - AuthType Basic - AuthName "Protected site" - AuthUserFile /etc/apache2/.htpasswd - Require valid-user - Order deny,allow - Allow from all - </Location> +```text + # replace the <Proxy *> section + <Proxy *> + Order deny,allow + Allow from all + </Proxy> + + # add a <Location /netdata/> section + <Location /netdata/> + AuthType Basic + AuthName "Protected site" + AuthUserFile /etc/apache2/.htpasswd + Require valid-user + Order deny,allow + Allow from all + </Location> ``` Specify `Location /` if Netdata is running on dedicated virtual host. **Apache 2.4 (dedicated virtual host) Example:** -```conf +```text <VirtualHost *:80> - RewriteEngine On - ProxyRequests Off - ProxyPreserveHost On - - ServerName netdata.domain.tld - - <Proxy *> - AllowOverride None - AuthType Basic - AuthName "Protected site" - AuthUserFile /etc/apache2/.htpasswd - Require valid-user - </Proxy> - - ProxyPass "/" "http://localhost:19999/" connectiontimeout=5 timeout=30 keepalive=on - ProxyPassReverse "/" "http://localhost:19999/" - - ErrorLog ${APACHE_LOG_DIR}/netdata-error.log - CustomLog ${APACHE_LOG_DIR}/netdata-access.log combined + RewriteEngine On + ProxyRequests Off + ProxyPreserveHost On + + ServerName netdata.domain.tld + + <Proxy *> + AllowOverride None + AuthType Basic + AuthName "Protected site" + AuthUserFile /etc/apache2/.htpasswd + Require valid-user + </Proxy> + + ProxyPass "/" "http://localhost:19999/" connectiontimeout=5 timeout=30 keepalive=on + ProxyPassReverse "/" "http://localhost:19999/" + + ErrorLog ${APACHE_LOG_DIR}/netdata-error.log + CustomLog ${APACHE_LOG_DIR}/netdata-access.log combined </VirtualHost> ``` @@ -217,8 +220,8 @@ Note: Changes are applied by reloading or restarting Apache. If you want to enable CSP within your Apache, you should consider some special requirements of the headers. Modify your configuration like that: -``` - Header always set Content-Security-Policy "default-src http: 'unsafe-inline' 'self' 'unsafe-eval'; script-src http: 'unsafe-inline' 'self' 'unsafe-eval'; style-src http: 'self' 'unsafe-inline'" +```text + Header always set Content-Security-Policy "default-src http: 'unsafe-inline' 'self' 'unsafe-eval'; script-src http: 'unsafe-inline' 'self' 'unsafe-eval'; style-src http: 'self' 'unsafe-inline'" ``` Note: Changes are applied by reloading or restarting Apache. @@ -242,7 +245,7 @@ exceed that threshold, and `mod_evasive` will add your IP address to a blocklist Our users have found success by setting `DOSPageCount` to `30`. Try this, and raise the value if you continue to see 403 errors while accessing the dashboard. -```conf +```text DOSPageCount 30 ``` @@ -255,100 +258,92 @@ To adjust the `DOSPageCount` for a specific virtual host, open your virtual host `/etc/httpd/conf/sites-available/my-domain.conf` or `/etc/apache2/sites-available/my-domain.conf` and add the following: -```conf +```text <VirtualHost *:80> - ... - # Increase the DOSPageCount to prevent 403 errors and IP addresses being blocked. - <IfModule mod_evasive20.c> - DOSPageCount 30 - </IfModule> + ... + # Increase the DOSPageCount to prevent 403 errors and IP addresses being blocked. + <IfModule mod_evasive20.c> + DOSPageCount 30 + </IfModule> </VirtualHost> ``` See issues [#2011](https://github.com/netdata/netdata/issues/2011) and [#7658](https://github.com/netdata/netdata/issues/7568) for more information. -# Netdata configuration +## Netdata configuration You might edit `/etc/netdata/netdata.conf` to optimize your setup a bit. For applying these changes you need to restart Netdata. -## Response compression +### Response compression If you plan to use Netdata exclusively via apache, you can gain some performance by preventing double compression of its output (Netdata compresses its response, apache re-compresses it) by editing `/etc/netdata/netdata.conf` and setting: -``` +```text [web] enable gzip compression = no ``` Once you disable compression at Netdata (and restart it), please verify you receive compressed responses from apache (it is important to receive compressed responses - the charts will be more snappy). -## Limit direct access to Netdata +### Limit direct access to Netdata You would also need to instruct Netdata to listen only on `localhost`, `127.0.0.1` or `::1`. -``` +```text [web] bind to = localhost ``` or -``` +```text [web] bind to = 127.0.0.1 ``` or -``` +```text [web] bind to = ::1 ``` - - You can also use a unix domain socket. This will also provide a faster route between apache and Netdata: -``` +```text [web] bind to = unix:/tmp/netdata.sock ``` Apache 2.4.24+ can not read from `/tmp` so create your socket in `/var/run/netdata` -``` +```text [web] bind to = unix:/var/run/netdata/netdata.sock ``` -_note: Netdata v1.8+ support unix domain sockets_ - At the apache side, prepend the 2nd argument to `ProxyPass` with `unix:/tmp/netdata.sock|`, like this: -``` +```text ProxyPass "/netdata/" "unix:/tmp/netdata.sock|http://localhost:19999/" connectiontimeout=5 timeout=30 keepalive=on ``` - - If your apache server is not on localhost, you can set: -``` +```text [web] bind to = * allow connections from = IP_OF_APACHE_SERVER ``` -*note: Netdata v1.9+ support `allow connections from`* - `allow connections from` accepts [Netdata simple patterns](/src/libnetdata/simple_pattern/README.md) to match against the connection IP address. ## Prevent the double access.log apache logs accesses and Netdata logs them too. You can prevent Netdata from generating its access log, by setting this in `/etc/netdata/netdata.conf`: -``` +```text [logs] access = off ``` @@ -357,7 +352,5 @@ apache logs accesses and Netdata logs them too. You can prevent Netdata from gen Make sure the requests reach Netdata, by examining `/var/log/netdata/access.log`. -1. if the requests do not reach Netdata, your apache does not forward them. -2. if the requests reach Netdata but the URLs are wrong, you have not re-written them properly. - - +1. if the requests do not reach Netdata, your apache does not forward them. +2. if the requests reach Netdata but the URLs are wrong, you have not re-written them properly. diff --git a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-caddy.md b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-caddy.md index b7608b30..f43a7a27 100644 --- a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-caddy.md +++ b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-caddy.md @@ -1,15 +1,6 @@ -<!-- -title: "Netdata via Caddy" -custom_edit_url: "https://github.com/netdata/netdata/edit/master/docs/Running-behind-caddy.md" -sidebar_label: "Netdata via Caddy" -learn_status: "Published" -learn_topic_type: "Tasks" -learn_rel_path: "Configuration/Secure your nodes" ---> +# Running Netdata behind Caddy -# Netdata via Caddy - -To run Netdata via [Caddy v2 proxying,](https://caddyserver.com/docs/caddyfile/directives/reverse_proxy) set your Caddyfile up like this: +To run Netdata via [Caddy v2 reverse proxy,](https://caddyserver.com/docs/caddyfile/directives/reverse_proxy) set your Caddyfile up like this: ```caddyfile netdata.domain.tld { @@ -34,5 +25,3 @@ netdata.domain.tld { You would also need to instruct Netdata to listen only to `127.0.0.1` or `::1`. To limit access to Netdata only from localhost, set `bind socket to IP = 127.0.0.1` or `bind socket to IP = ::1` in `/etc/netdata/netdata.conf`. - - diff --git a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-h2o.md b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-h2o.md index 276b72e8..f2dc45b8 100644 --- a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-h2o.md +++ b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-h2o.md @@ -1,12 +1,3 @@ -<!-- -title: "Running Netdata behind H2O" -custom_edit_url: "https://github.com/netdata/netdata/edit/master/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-h2o.md" -sidebar_label: "Running Netdata behind H2O" -learn_status: "Published" -learn_topic_type: "Tasks" -learn_rel_path: "Configuration/Secure your nodes" ---> - # Running Netdata behind H2O [H2O](https://h2o.examp1e.net/) is a new generation HTTP server that provides quicker response to users with less CPU utilization when compared to older generation of web servers. @@ -15,23 +6,23 @@ It is notable for having much simpler configuration than many popular HTTP serve ## Why H2O -- Sane configuration defaults mean that typical configurations are very minimalistic and easy to work with. +- Sane configuration defaults mean that typical configurations are very minimalistic and easy to work with. -- Native support for HTTP/2 provides improved performance when accessing the Netdata dashboard remotely. +- Native support for HTTP/2 provides improved performance when accessing the Netdata dashboard remotely. -- Password protect access to the Netdata dashboard without requiring Netdata Cloud. +- Password protect access to the Netdata dashboard without requiring Netdata Cloud. -## H2O configuration file. +## H2O configuration file -On most systems, the H2O configuration is found under `/etc/h2o`. H2O uses [YAML 1.1](https://yaml.org/spec/1.1/), with a few special extensions, for it’s configuration files, with the main configuration file being `/etc/h2o/h2o.conf`. +On most systems, the H2O configuration is found under `/etc/h2o`. H2O uses [YAML 1.1](https://yaml.org/spec/1.1/), with a few special extensions, for it’s configuration files, with the main configuration file being `/etc/h2o/h2o.conf`. You can edit the H2O configuration file with Nano, Vim or any other text editors with which you are comfortable. After making changes to the configuration files, perform the following: -- Test the configuration with `h2o -m test -c /etc/h2o/h2o.conf` +- Test the configuration with `h2o -m test -c /etc/h2o/h2o.conf` -- Restart H2O to apply tha changes with `/etc/init.d/h2o restart` or `service h2o restart` +- Restart H2O to apply tha changes with `/etc/init.d/h2o restart` or `service h2o restart` ## Ways to access Netdata via H2O @@ -52,7 +43,7 @@ hosts: ### As a subfolder of an existing virtual host -This method is recommended when Netdata is to be served from a subfolder (or directory). +This method is recommended when Netdata is to be served from a subfolder (or directory). In this case, the virtual host `netdata.example.com` already exists and Netdata has to be accessed via `netdata.example.com/netdata/`. ```yaml @@ -72,7 +63,7 @@ hosts: ### As a subfolder for multiple Netdata servers, via one H2O instance -This is the recommended configuration when one H2O instance will be used to manage multiple Netdata servers via subfolders. +This is the recommended configuration when one H2O instance will be used to manage multiple Netdata servers via sub-folders. ```yaml hosts: @@ -100,12 +91,12 @@ Of course you can add as many backend servers as you like. Using the above, you access Netdata on the backend servers, like this: -- `http://netdata.example.com/netdata/server1/` to reach Netdata on `198.51.100.1:19999` -- `http://netdata.example.com/netdata/server2/` to reach Netdata on `198.51.100.2:19999` +- `http://netdata.example.com/netdata/server1/` to reach Netdata on `198.51.100.1:19999` +- `http://netdata.example.com/netdata/server2/` to reach Netdata on `198.51.100.2:19999` ### Encrypt the communication between H2O and Netdata -In case Netdata's web server has been [configured to use TLS](/src/web/server/README.md#enabling-tls-support), it is +In case Netdata's web server has been [configured to use TLS](/src/web/server/README.md#enable-httpstls-support), it is necessary to specify inside the H2O configuration that the final destination is using TLS. To do this, change the `http://` on the `proxy.reverse.url` line in your H2O configuration with `https://` @@ -141,31 +132,27 @@ For more information on using basic authentication with H2O, see [their official If your H2O server is on `localhost`, you can use this to ensure external access is only possible through H2O: -``` +```text [web] bind to = 127.0.0.1 ::1 ``` - - You can also use a unix domain socket. This will provide faster communication between H2O and Netdata as well: -``` +```text [web] bind to = unix:/run/netdata/netdata.sock ``` In the H2O configuration, use a line like the following to connect to Netdata via the unix socket: -```yaml +```text proxy.reverse.url http://[unix:/run/netdata/netdata.sock] ``` - - If your H2O server is not on localhost, you can set: -``` +```text [web] bind to = * allow connections from = IP_OF_H2O_SERVER @@ -181,7 +168,7 @@ the connection IP address. H2O logs accesses and Netdata logs them too. You can prevent Netdata from generating its access log, by setting this in `/etc/netdata/netdata.conf`: -``` +```text [logs] access = off ``` diff --git a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-haproxy.md b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-haproxy.md index 9d2aff67..04bd3283 100644 --- a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-haproxy.md +++ b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-haproxy.md @@ -1,16 +1,6 @@ -<!-- -title: "Netdata via HAProxy" -custom_edit_url: "https://github.com/netdata/netdata/edit/master/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-haproxy.md" -sidebar_label: "Netdata via HAProxy" -learn_status: "Published" -learn_topic_type: "Tasks" -learn_rel_path: "Configuration/Secure your nodes" ---> - -# Netdata via HAProxy - -> HAProxy is a free, very fast and reliable solution offering high availability, load balancing, -> and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic websites +# Running Netdata behind HAProxy + +> HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic websites > and powers quite a number of the world's most visited ones. If Netdata is running on a host running HAProxy, rather than connecting to Netdata from a port number, a domain name can @@ -18,14 +8,14 @@ be pointed at HAProxy, and HAProxy can redirect connections to the Netdata port. Netdata at `https://example.com` or `https://example.com/netdata/`, which is a much nicer experience then `http://example.com:19999`. -To proxy requests from [HAProxy](https://github.com/haproxy/haproxy) to Netdata, +To proxy requests from [HAProxy](https://github.com/haproxy/haproxy) to Netdata, the following configuration can be used: ## Default Configuration For all examples, set the mode to `http` -```conf +```text defaults mode http ``` @@ -38,7 +28,7 @@ A simple example where the base URL, say `http://example.com`, is used with no s Create a frontend to receive the request. -```conf +```text frontend http_frontend ## HTTP ipv4 and ipv6 on all ips ## bind :::80 v4v6 @@ -50,7 +40,7 @@ frontend http_frontend Create the Netdata backend which will send requests to port `19999`. -```conf +```text backend netdata_backend option forwardfor server netdata_local 127.0.0.1:19999 @@ -69,7 +59,7 @@ An example where the base URL is used with a subpath `/netdata/`: To use a subpath, create an ACL, which will set a variable based on the subpath. -```conf +```text frontend http_frontend ## HTTP ipv4 and ipv6 on all ips ## bind :::80 v4v6 @@ -92,7 +82,7 @@ frontend http_frontend Same as simple example, except remove `/netdata/` with regex. -```conf +```text backend netdata_backend option forwardfor server netdata_local 127.0.0.1:19999 @@ -107,14 +97,14 @@ backend netdata_backend ## Using TLS communication -TLS can be used by adding port `443` and a cert to the frontend. +TLS can be used by adding port `443` and a cert to the frontend. This example will only use Netdata if host matches example.com (replace with your domain). ### Frontend This frontend uses a certificate list. -```conf +```text frontend https_frontend ## HTTP ## bind :::80 v4v6 @@ -139,11 +129,11 @@ In the cert list file place a mapping from a certificate file to the domain used `/etc/letsencrypt/certslist.txt`: -```txt +```text example.com /etc/letsencrypt/live/example.com/example.com.pem ``` -The file `/etc/letsencrypt/live/example.com/example.com.pem` should contain the key and +The file `/etc/letsencrypt/live/example.com/example.com.pem` should contain the key and certificate (in that order) concatenated into a `.pem` file.: ```sh @@ -156,7 +146,7 @@ cat /etc/letsencrypt/live/example.com/fullchain.pem \ Same as simple, except set protocol `https`. -```conf +```text backend netdata_backend option forwardfor server netdata_local 127.0.0.1:19999 @@ -172,30 +162,30 @@ backend netdata_backend To use basic HTTP Authentication, create an authentication list: -```conf +```text # HTTP Auth userlist basic-auth-list group is-admin # Plaintext password - user admin password passwordhere groups is-admin + user admin password YOUR_PASSWORD groups is-admin ``` You can create a hashed password using the `mkpassword` utility. ```sh - printf "passwordhere" | mkpasswd --stdin --method=sha-256 + printf "YOUR_PASSWORD" | mkpasswd --stdin --method=sha-256 $5$l7Gk0VPIpKO$f5iEcxvjfdF11khw.utzSKqP7W.0oq8wX9nJwPLwzy1 ``` -Replace `passwordhere` with hash: +Replace `YOUR_PASSWORD` with hash: -```conf +```text user admin password $5$l7Gk0VPIpKO$f5iEcxvjfdF11khw.utzSKqP7W.0oq8wX9nJwPLwzy1 groups is-admin ``` Now add at the top of the backend: -```conf +```text acl devops-auth http_auth_group(basic-auth-list) is-admin http-request auth realm netdata_local unless devops-auth ``` @@ -204,7 +194,7 @@ http-request auth realm netdata_local unless devops-auth Full example configuration with HTTP auth over TLS with subpath: -```conf +```text global maxconn 20000 @@ -293,5 +283,3 @@ backend netdata_backend http-request set-header X-Forwarded-Port %[dst_port] http-request set-header Connection "keep-alive" ``` - - diff --git a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-lighttpd.md b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-lighttpd.md index 637bc064..48b9b2c9 100644 --- a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-lighttpd.md +++ b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-lighttpd.md @@ -1,26 +1,17 @@ -<!-- -title: "Netdata via lighttpd v1.4.x" -custom_edit_url: "https://github.com/netdata/netdata/edit/master/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-lighttpd.md" -sidebar_label: "Netdata via lighttpd v1.4.x" -learn_status: "Published" -learn_topic_type: "Tasks" -learn_rel_path: "Configuration/Secure your nodes" ---> - -# Netdata via lighttpd v1.4.x +# Running Netdata behind lighttpd v1.4.x Here is a config for accessing Netdata in a suburl via lighttpd 1.4.46 and newer: -```txt +```text $HTTP["url"] =~ "^/netdata/" { proxy.server = ( "" => ("netdata" => ( "host" => "127.0.0.1", "port" => 19999 ))) proxy.header = ( "map-urlpath" => ( "/netdata/" => "/") ) } ``` -If you have older lighttpd you have to use a chain (such as below), as explained [at this stackoverflow answer](http://stackoverflow.com/questions/14536554/lighttpd-configuration-to-proxy-rewrite-from-one-domain-to-another). +If you have older lighttpd you have to use a chain (such as below), as explained [at this Stack Overflow answer](http://stackoverflow.com/questions/14536554/lighttpd-configuration-to-proxy-rewrite-from-one-domain-to-another). -```txt +```text $HTTP["url"] =~ "^/netdata/" { proxy.server = ( "" => ("" => ( "host" => "127.0.0.1", "port" => 19998 ))) } @@ -31,19 +22,16 @@ $SERVER["socket"] == ":19998" { } ``` - - If the only thing the server is exposing via the web is Netdata (and thus no suburl rewriting required), then you can get away with just -``` +```text proxy.server = ( "" => ( ( "host" => "127.0.0.1", "port" => 19999 ))) ``` -Though if it's public facing you might then want to put some authentication on it. htdigest support -looks like: +Though if it's public facing you might then want to put some authentication on it. `htdigest` support looks like: -``` +```text auth.backend = "htdigest" auth.backend.htdigest.userfile = "/etc/lighttpd/lighttpd.htdigest" auth.require = ( "" => ( "method" => "digest", @@ -55,14 +43,12 @@ auth.require = ( "" => ( "method" => "digest", other auth methods, and more info on htdigest, can be found in lighttpd's [mod_auth docs](http://redmine.lighttpd.net/projects/lighttpd/wiki/Docs_ModAuth). - - It seems that lighttpd (or some versions of it), fail to proxy compressed web responses. To solve this issue, disable web response compression in Netdata. -Open `/etc/netdata/netdata.conf` and set in [global]\: +Open `/etc/netdata/netdata.conf` and set in `[global]`: -``` +```text enable web responses gzip compression = no ``` @@ -71,5 +57,3 @@ enable web responses gzip compression = no You would also need to instruct Netdata to listen only to `127.0.0.1` or `::1`. To limit access to Netdata only from localhost, set `bind socket to IP = 127.0.0.1` or `bind socket to IP = ::1` in `/etc/netdata/netdata.conf`. - - diff --git a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-nginx.md b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-nginx.md index f2dd137d..c0364633 100644 --- a/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-nginx.md +++ b/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-nginx.md @@ -2,19 +2,19 @@ ## Intro -[Nginx](https://nginx.org/en/) is an HTTP and reverse proxy server, a mail proxy server, and a generic TCP/UDP proxy server used to host websites and applications of all sizes. +[Nginx](https://nginx.org/en/) is an HTTP and reverse proxy server, a mail proxy server, and a generic TCP/UDP proxy server used to host websites and applications of all sizes. The software is known for its low impact on memory resources, high scalability, and its modular, event-driven architecture which can offer secure, predictable performance. ## Why Nginx -- By default, Nginx is fast and lightweight out of the box. +- By default, Nginx is fast and lightweight out of the box. -- Nginx is used and useful in cases when you want to access different instances of Netdata from a single server. +- Nginx is used and useful in cases when you want to access different instances of Netdata from a single server. -- Password-protect access to Netdata, until distributed authentication is implemented via the Netdata cloud Sign In mechanism. +- Password-protect access to Netdata, until distributed authentication is implemented via the Netdata cloud Sign In mechanism. -- A proxy was necessary to encrypt the communication to Netdata, until v1.16.0, which provided TLS (HTTPS) support. +- A proxy was necessary to encrypt the communication to Netdata, until v1.16.0, which provided TLS (HTTPS) support. ## Nginx configuration file @@ -22,23 +22,23 @@ All Nginx configurations can be found in the `/etc/nginx/` directory. The main c Configuration options in Nginx are known as directives. Directives are organized into groups known as blocks or contexts. The two terms can be used interchangeably. -Depending on your installation source, you’ll find an example configuration file at `/etc/nginx/conf.d/default.conf` or `etc/nginx/sites-enabled/default`, in some cases you may have to manually create the `sites-available` and `sites-enabled` directories. +Depending on your installation source, you’ll find an example configuration file at `/etc/nginx/conf.d/default.conf` or `etc/nginx/sites-enabled/default`, in some cases you may have to manually create the `sites-available` and `sites-enabled` directories. You can edit the Nginx configuration file with Nano, Vim or any other text editors you are comfortable with. After making changes to the configuration files: -- Test Nginx configuration with `nginx -t`. +- Test Nginx configuration with `nginx -t`. -- Restart Nginx to effect the change with `/etc/init.d/nginx restart` or `service nginx restart`. +- Restart Nginx to effect the change with `/etc/init.d/nginx restart` or `service nginx restart`. ## Ways to access Netdata via Nginx ### As a virtual host -With this method instead of `SERVER_IP_ADDRESS:19999`, the Netdata dashboard can be accessed via a human-readable URL such as `netdata.example.com` used in the configuration below. +With this method instead of `SERVER_IP_ADDRESS:19999`, the Netdata dashboard can be accessed via a human-readable URL such as `netdata.example.com` used in the configuration below. -```conf +```text upstream backend { # the Netdata server server 127.0.0.1:19999; @@ -69,10 +69,10 @@ server { ### As a subfolder to an existing virtual host -This method is recommended when Netdata is to be served from a subfolder (or directory). +This method is recommended when Netdata is to be served from a subfolder (or directory). In this case, the virtual host `netdata.example.com` already exists and Netdata has to be accessed via `netdata.example.com/netdata/`. -```conf +```text upstream netdata { server 127.0.0.1:19999; keepalive 64; @@ -112,9 +112,9 @@ server { ### As a subfolder for multiple Netdata servers, via one Nginx -This is the recommended configuration when one Nginx will be used to manage multiple Netdata servers via subfolders. +This is the recommended configuration when one Nginx will be used to manage multiple Netdata servers via sub-folders. -```conf +```text upstream backend-server1 { server 10.1.1.103:19999; keepalive 64; @@ -159,16 +159,16 @@ Of course you can add as many backend servers as you like. Using the above, you access Netdata on the backend servers, like this: -- `http://netdata.example.com/netdata/server1/` to reach `backend-server1` -- `http://netdata.example.com/netdata/server2/` to reach `backend-server2` +- `http://netdata.example.com/netdata/server1/` to reach `backend-server1` +- `http://netdata.example.com/netdata/server2/` to reach `backend-server2` ### Encrypt the communication between Nginx and Netdata -In case Netdata's web server has been [configured to use TLS](/src/web/server/README.md#enabling-tls-support), it is +In case Netdata's web server has been [configured to use TLS](/src/web/server/README.md#enable-httpstls-support), it is necessary to specify inside the Nginx configuration that the final destination is using TLS. To do this, please, append the following parameters in your `nginx.conf` -```conf +```text proxy_set_header X-Forwarded-Proto https; proxy_pass https://localhost:19999; ``` @@ -189,7 +189,7 @@ printf "yourusername:$(openssl passwd -apr1)" > /etc/nginx/passwords And then enable the authentication inside your server directive: -```conf +```text server { # ... auth_basic "Protected"; @@ -202,40 +202,35 @@ server { If your Nginx is on `localhost`, you can use this to protect your Netdata: -``` +```text [web] bind to = 127.0.0.1 ::1 ``` You can also use a unix domain socket. This will also provide a faster route between Nginx and Netdata: -``` +```text [web] bind to = unix:/var/run/netdata/netdata.sock ``` -*note: Netdata v1.8+ support unix domain sockets* - At the Nginx side, use something like this to use the same unix domain socket: -```conf +```text upstream backend { server unix:/var/run/netdata/netdata.sock; keepalive 64; } ``` - If your Nginx server is not on localhost, you can set: -``` +```text [web] bind to = * allow connections from = IP_OF_NGINX_SERVER ``` -*note: Netdata v1.9+ support `allow connections from`* - `allow connections from` accepts [Netdata simple patterns](/src/libnetdata/simple_pattern/README.md) to match against the connection IP address. @@ -243,7 +238,7 @@ connection IP address. Nginx logs accesses and Netdata logs them too. You can prevent Netdata from generating its access log, by setting this in `/etc/netdata/netdata.conf`: -``` +```text [logs] access = off ``` @@ -252,18 +247,18 @@ Nginx logs accesses and Netdata logs them too. You can prevent Netdata from gene By default, netdata compresses its responses. You can have nginx do that instead, with the following options in the `location /` block: -```conf - location / { - ... - gzip on; - gzip_proxied any; - gzip_types *; - } +```text +location / { + ... + gzip on; + gzip_proxied any; + gzip_types *; +} ``` To disable Netdata's gzip compression, open `netdata.conf` and in the `[web]` section put: -```conf +```text [web] enable gzip compression = no ``` @@ -278,5 +273,3 @@ If you get an 502 Bad Gateway error you might check your Nginx error log: ``` If you see something like the above, chances are high that SELinux prevents nginx from connecting to the backend server. To fix that, just use this policy: `setsebool -P httpd_can_network_connect true`. - - diff --git a/docs/netdata-agent/securing-netdata-agents.md b/docs/netdata-agent/securing-netdata-agents.md index 5232173f..91a82c1a 100644 --- a/docs/netdata-agent/securing-netdata-agents.md +++ b/docs/netdata-agent/securing-netdata-agents.md @@ -1,26 +1,25 @@ # Securing Netdata Agents
-Netdata is a monitoring system. It should be protected, the same way you protect all your admin apps. We assume Netdata
+Netdata is a monitoring system. It should be protected, the same way you protect all your admin apps. We assume Netdata
will be installed privately, for your eyes only.
Upon installation, the Netdata Agent serves the **local dashboard** at port `19999`. If the node is accessible to the
internet at large, anyone can access the dashboard and your node's metrics at `http://NODE:19999`. We made this decision
so that the local dashboard was immediately accessible to users, and so that we don't dictate how professionals set up
-and secure their infrastructures.
+and secure their infrastructures.
-Viewers will be able to get some information about the system Netdata is running. This information is everything the dashboard
-provides. The dashboard includes a list of the services each system runs (the legends of the charts under the `Systemd Services`
-section), the applications running (the legends of the charts under the `Applications` section), the disks of the system and
-their names, the user accounts of the system that are running processes (the `Users` and `User Groups` section of the dashboard),
+Viewers will be able to get some information about the system Netdata is running. This information is everything the dashboard
+provides. The dashboard includes a list of the services each system runs (the legends of the charts under the `Systemd Services`
+section), the applications running (the legends of the charts under the `Applications` section), the disks of the system and
+their names, the user accounts of the system that are running processes (the `Users` and `User Groups` section of the dashboard),
the network interfaces and their names (not the IPs) and detailed information about the performance of the system and its applications.
-This information is not sensitive (meaning that it is not your business data), but **it is important for possible attackers**.
-It will give them clues on what to check, what to try and in the case of DDoS against your applications, they will know if they
-are doing it right or not.
+This information is not sensitive (meaning that it is not your business data), but **it is important for possible attackers**.
+It will give them clues on what to check, what to try and in the case of DDoS against your applications, they will know if they’re doing it right or not.
-Also, viewers could use Netdata itself to stress your servers. Although the Netdata daemon runs unprivileged, with the minimum
-process priority (scheduling priority `idle` - lower than nice 19) and adjusts its OutOfMemory (OOM) score to 1000 (so that it
-will be first to be killed by the kernel if the system starves for memory), some pressure can be applied on your systems if
+Also, viewers could use Netdata itself to stress your servers. Although the Netdata daemon runs unprivileged, with the minimum
+process priority (scheduling priority `idle` - lower than nice 19) and adjusts its OutOfMemory (OOM) score to 1000 (so that it
+will be first to be killed by the kernel if the system starves for memory), some pressure can be applied on your systems if
someone attempts a DDoS against Netdata.
Instead of dictating how to secure your infrastructure, we give you many options to establish security best practices
@@ -29,12 +28,12 @@ that align with your goals and your organization's standards. - [Disable the local dashboard](#disable-the-local-dashboard): **Simplest and recommended method** for those who have
added nodes to Netdata Cloud and view dashboards and metrics there.
-- [Expose Netdata only in a private LAN](#expose-netdata-only-in-a-private-lan). Simplest and recommended method for those who do not use Netdata Cloud.
+- [Expose Netdata only in a private LAN](#expose-netdata-only-in-a-private-lan). Simplest and recommended method for those who don’t use Netdata Cloud.
- [Fine-grained access control](#fine-grained-access-control): Allow local dashboard access from
only certain IP addresses, such as a trusted static IP or connections from behind a management LAN. Full support for Netdata Cloud.
-- [Use a reverse proxy (authenticating web server in proxy mode)](#use-an-authenticating-web-server-in-proxy-mode): Password-protect
+- [Use a reverse proxy (authenticating web server in proxy mode)](#use-an-authenticating-web-server-in-proxy-mode): Password-protect
a local dashboard and enable TLS to secure it. Full support for Netdata Cloud.
- [Use Netdata parents as Web Application Firewalls](#use-netdata-parents-as-web-application-firewalls)
@@ -46,7 +45,7 @@ that align with your goals and your organization's standards. This is the _recommended method for those who have connected their nodes to Netdata Cloud_ and prefer viewing real-time
metrics using the Room Overview, Nodes tab, and Cloud dashboards.
-You can disable the local dashboard (and API) but retain the encrypted Agent-Cloud link
+You can disable the local dashboard (and API) but retain the encrypted Agent-Cloud link
([ACLK](/src/aclk/README.md)) that
allows you to stream metrics on demand from your nodes via the Netdata Cloud interface. This change mitigates all
concerns about revealing metrics and system design to the internet at large, while keeping all the functionality you
@@ -55,64 +54,61 @@ need to view metrics and troubleshoot issues with Netdata Cloud. Open `netdata.conf` with `./edit-config netdata.conf`. Scroll down to the `[web]` section, and find the `mode =
static-threaded` setting, and change it to `none`.
-```conf
+```text
[web]
mode = none
```
-Save and close the editor, then [restart your Agent](/packaging/installer/README.md#maintaining-a-netdata-agent-installation)
-using `sudo systemctl
-restart netdata`. If you try to visit the local dashboard to `http://NODE:19999` again, the connection will fail because
+Save and close the editor, then [restart your Agent](/docs/netdata-agent/start-stop-restart.md). If you try to visit the local dashboard to `http://NODE:19999` again, the connection will fail because
that node no longer serves its local dashboard.
-> See the [configuration basics doc](/docs/netdata-agent/configuration/README.md) for details on how to find
+> See the [configuration basics doc](/docs/netdata-agent/configuration/README.md) for details on how to find
`netdata.conf` and use
> `edit-config`.
-If you are using Netdata with Docker, make sure to set the `NETDATA_HEALTHCHECK_TARGET` environment variable to `cli`.
-
+If you’re using Netdata with Docker, make sure to set the `NETDATA_HEALTHCHECK_TARGET` environment variable to `cli`.
## Expose Netdata only in a private LAN
-If your organisation has a private administration and management LAN, you can bind Netdata on this network interface on all your servers.
+If your organization has a private administration and management LAN, you can bind Netdata on this network interface on all your servers.
This is done in `Netdata.conf` with these settings:
-```
+```text
[web]
- bind to = 10.1.1.1:19999 localhost:19999
+ bind to = 10.1.1.1:19999 localhost:19999
```
-You can bind Netdata to multiple IPs and ports. If you use hostnames, Netdata will resolve them and use all the IPs
+You can bind Netdata to multiple IPs and ports. If you use hostnames, Netdata will resolve them and use all the IPs
(in the above example `localhost` usually resolves to both `127.0.0.1` and `::1`).
-**This is the best and the suggested way to protect Netdata**. Your systems **should** have a private administration and management
+**This is the best and the suggested way to protect Netdata**. Your systems **should** have a private administration and management
LAN, so that all management tasks are performed without any possibility of them being exposed on the internet.
-For cloud based installations, if your cloud provider does not provide such a private LAN (or if you use multiple providers),
-you can create a virtual management and administration LAN with tools like `tincd` or `gvpe`. These tools create a mesh VPN
-allowing all servers to communicate securely and privately. Your administration stations join this mesh VPN to get access to
+For Cloud-based installations, if your cloud provider doesn’t provide such a private LAN (or if you use multiple providers),
+you can create a virtual management and administration LAN with tools like `tincd` or `gvpe`. These tools create a mesh VPN
+allowing all servers to communicate securely and privately. Your administration stations join this mesh VPN to get access to
management and administration tasks on all your cloud servers.
-For `gvpe` we have developed a [simple provisioning tool](https://github.com/netdata/netdata-demo-site/tree/master/gvpe) you
-may find handy (it includes statically compiled `gvpe` binaries for Linux and FreeBSD, and also a script to compile `gvpe`
-on your macOS system). We use this to create a management and administration LAN for all Netdata demo sites (spread all over
+For `gvpe` we have developed a [simple provisioning tool](https://github.com/netdata/netdata-demo-site/tree/master/gvpe) you
+may find handy (it includes statically compiled `gvpe` binaries for Linux and FreeBSD, and also a script to compile `gvpe`
+on your macOS system). We use this to create a management and administration LAN for all Netdata demo sites (spread all over
the internet using multiple hosting providers).
## Fine-grained access control
If you want to keep using the local dashboard, but don't want it exposed to the internet, you can restrict access with
-[access lists](/src/web/server/README.md#access-lists). This method also fully
+[access lists](/src/web/server/README.md#access-lists). This method also fully
retains the ability to stream metrics
on-demand through Netdata Cloud.
The `allow connections from` setting helps you allow only certain IP addresses or FQDN/hostnames, such as a trusted
-static IP, only `localhost`, or connections from behind a management LAN.
+static IP, only `localhost`, or connections from behind a management LAN.
By default, this setting is `localhost *`. This setting allows connections from `localhost` in addition to _all_
connections, using the `*` wildcard. You can change this setting using Netdata's [simple
patterns](/src/libnetdata/simple_pattern/README.md).
-```conf
+```text
[web]
# Allow only localhost connections
allow connections from = localhost
@@ -125,9 +121,9 @@ patterns](/src/libnetdata/simple_pattern/README.md). ```
The `allow connections from` setting is global and restricts access to the dashboard, badges, streaming, API, and
-`netdata.conf`, but you can also set each of those access lists more granularly if you choose:
+`netdata.conf`, but you can also set each of those access lists in more detail if you want:
-```conf
+```text
[web]
allow connections from = localhost *
allow dashboard from = localhost *
@@ -137,44 +133,42 @@ The `allow connections from` setting is global and restricts access to the dashb allow management from = localhost
```
-See the [web server](/src/web/server/README.md#access-lists) docs for additional details
-about access lists. You can take
-access lists one step further by [enabling SSL](/src/web/server/README.md#enabling-tls-support) to encrypt data from local
+See the [web server](/src/web/server/README.md#access-lists) docs for additional details about access lists. You can take access lists one step further by [enabling SSL](/src/web/server/README.md#enable-httpstls-support) to encrypt data from local
dashboard in transit. The connection to Netdata Cloud is always secured with TLS.
## Use an authenticating web server in proxy mode
-Use one web server to provide authentication in front of **all your Netdata servers**. So, you will be accessing all your Netdata with
-URLs like `http://{HOST}/netdata/{NETDATA_HOSTNAME}/` and authentication will be shared among all of them (you will sign-in once for all your servers).
-Instructions are provided on how to set the proxy configuration to have Netdata run behind
-[nginx](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-nginx.md),
-[HAproxy](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-haproxy.md),
-[Apache](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-apache.md),
-[lighthttpd](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-lighttpd.md),
+Use one web server to provide authentication in front of **all your Netdata servers**. So, you will be accessing all your Netdata with
+URLs like `http://{HOST}/netdata/{NETDATA_HOSTNAME}/` and authentication will be shared among all of them (you will sign in once for all your servers).
+Instructions are provided on how to set the proxy configuration to have Netdata run behind
+[nginx](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-nginx.md),
+[HAproxy](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-haproxy.md),
+[Apache](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-apache.md),
+[lighthttpd](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-lighttpd.md),
[caddy](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-caddy.md), and
[H2O](/docs/netdata-agent/configuration/running-the-netdata-agent-behind-a-reverse-proxy/Running-behind-h2o.md).
## Use Netdata parents as Web Application Firewalls
-The Netdata Agents you install on your production systems do not need direct access to the Internet. Even when you use
-Netdata Cloud, you can appoint one or more Netdata Parents to act as border gateways or application firewalls, isolating
-your production systems from the rest of the world. Netdata
-Parents receive metric data from Netdata Agents or other Netdata Parents on one side, and serve most queries using their own
+The Netdata Agents you install on your production systems don’t need direct access to the Internet. Even when you use
+Netdata Cloud, you can appoint one or more Netdata Parents to act as border gateways or application firewalls, isolating
+your production systems from the rest of the world. Netdata
+Parents receive metric data from Netdata Agents or other Netdata Parents on one side, and serve most queries using their own
copy of the data to satisfy dashboard requests on the other side.
-For more information see [Streaming and replication](/docs/observability-centralization-points/README.md).
+For more information, see [Streaming and replication](/docs/observability-centralization-points/README.md).
## Other methods
Of course, there are many more methods you could use to protect Netdata:
-- Bind Netdata to localhost and use `ssh -L 19998:127.0.0.1:19999 remote.netdata.ip` to forward connections of local port 19998 to remote port 19999.
-This way you can ssh to a Netdata server and then use `http://127.0.0.1:19998/` on your computer to access the remote Netdata dashboard.
+- Bind Netdata to localhost and use `ssh -L 19998:127.0.0.1:19999 remote.netdata.ip` to forward connections of local port 19998 to remote port 19999.
+ This way you can ssh to a Netdata server and then use `http://127.0.0.1:19998/` on your computer to access the remote Netdata dashboard.
-- If you are always under a static IP, you can use the script given above to allow direct access to your Netdata servers without authentication,
-from all your static IPs.
+- If you’re always under a static IP, you can use the script given above to allow direct access to your Netdata servers without authentication,
+ from all your static IPs.
-- Install all your Netdata in **headless data collector** mode, forwarding all metrics in real-time to a parent
- Netdata server, which will be protected with authentication using an nginx server running locally at the parent
- Netdata server. This requires more resources (you will need a bigger parent Netdata server), but does not require
- any firewall changes, since all the child Netdata servers will not be listening for incoming connections.
+- Install all your Netdata in **headless data collector** mode, forwarding all metrics in real-time to a parent
+ Netdata server, which will be protected with authentication using a nginx server running locally at the parent
+ Netdata server. This requires more resources (you will need a bigger parent Netdata server), but doesn’t require
+ any firewall changes, since all the child Netdata servers will not be listening for incoming connections.
diff --git a/docs/netdata-agent/sizing-netdata-agents/README.md b/docs/netdata-agent/sizing-netdata-agents/README.md index 3ba346f7..3880e214 100644 --- a/docs/netdata-agent/sizing-netdata-agents/README.md +++ b/docs/netdata-agent/sizing-netdata-agents/README.md @@ -1,89 +1,85 @@ -# Sizing Netdata Agents +# Resource utilization -Netdata automatically adjusts its resources utilization based on the workload offered to it. +Netdata is designed to automatically adjust its resource consumption based on the specific workload. -This is a map of how Netdata **features impact resources utilization**: +This table shows the specific system resources affected by different Netdata features: -| Feature | CPU | RAM | Disk I/O | Disk Space | Retention | Bandwidth | -|-----------------------------:|:---:|:---:|:--------:|:----------:|:---------:|:---------:| -| Metrics collected | X | X | X | X | X | - | -| Samples collection frequency | X | - | X | X | X | - | -| Database mode and tiers | - | X | X | X | X | - | -| Machine learning | X | X | - | - | - | - | -| Streaming | X | X | - | - | - | X | +| Feature | CPU | RAM | Disk I/O | Disk Space | Network Traffic | +|------------------------:|:---:|:---:|:--------:|:----------:|:---------------:| +| Collected metrics | ✓ | ✓ | ✓ | ✓ | - | +| Sample frequency | ✓ | - | ✓ | ✓ | - | +| Database mode and tiers | - | ✓ | ✓ | ✓ | - | +| Machine learning | ✓ | ✓ | - | - | - | +| Streaming | ✓ | ✓ | - | - | ✓ | -1. **Metrics collected**: The number of metrics collected affects almost every aspect of resources utilization. +1. **Collected metrics** - When you need to lower the resources used by Netdata, this is an obvious first step. + - **Impact**: More metrics mean higher CPU, RAM, disk I/O, and disk space usage. + - **Optimization**: To reduce resource consumption, consider lowering the number of collected metrics by disabling unnecessary data collectors. -2. **Samples collection frequency**: By default Netdata collects metrics with 1-second granularity, unless the metrics collected are not updated that frequently, in which case Netdata collects them at the frequency they are updated. This is controlled per data collection job. +2. **Sample frequency** - Lowering the data collection frequency from every-second to every-2-seconds, will make Netdata use half the CPU utilization. So, CPU utilization is proportional to the data collection frequency. + - **Impact**: Netdata collects most metrics with 1-second granularity. This high frequency impacts CPU usage. + - **Optimization**: Lowering the sampling frequency (e.g., 1-second to 2-second intervals) can halve CPU usage. Balance the need for detailed data with resource efficiency. -3. **Database Mode and Tiers**: By default Netdata stores metrics in 3 database tiers: high-resolution, mid-resolution, low-resolution. All database tiers are updated in parallel during data collection, and depending on the query duration Netdata may consult one or more tiers to optimize the resources required to satisfy it. +3. **Database Mode** - The number of database tiers affects the memory requirements of Netdata. Going from 3-tiers to 1-tier, will make Netdata use half the memory. Of course metrics retention will also be limited to 1 tier. + - **Impact**: The default database mode, `dbengine`, compresses data and writes it to disk. + - **Optimization**: In a Parent-Child setup, switch the Child's database mode to `ram`. This eliminates disk I/O for the Child. -4. **Machine Learning**: Byt default Netdata trains multiple machine learning models for every metric collected, to learn its behavior and detect anomalies. Machine Learning is a CPU intensive process and affects the overall CPU utilization of Netdata. +4. **Database Tiers** -5. **Streaming Compression**: When using Netdata in Parent-Child configurations to create Metrics Centralization Points, the compression algorithm used greatly affects CPU utilization and bandwidth consumption. + - **Impact**: The number of database tiers directly affects memory consumption. More tiers mean higher memory usage. + - **Optimization**: The default number of tiers is 3. Choose the appropriate number of tiers based on data retention requirements. - Netdata supports multiple streaming compressions algorithms, allowing the optimization of either CPU utilization or Network Bandwidth. The default algorithm `zstd` provides the best balance among them. +5. **Machine Learning** -## Minimizing the resources used by Netdata Agents - -To minimize the resources used by Netdata Agents, we suggest to configure Netdata Parents for centralizing metric samples, and disabling most of the features on Netdata Children. This will provide minimal resources utilization at the edge, while all the features of Netdata are available at the Netdata Parents. - -The following guides provide instructions on how to do this. + - **Impact**: Machine learning model training is CPU-intensive, affecting overall CPU usage. + - **Optimization**: Consider disabling machine learning for less critical metrics or adjusting model training frequency. -## Maximizing the scale of Netdata Parents - -Netdata Parents automatically size resource utilization based on the workload they receive. The only possible option for improving query performance is to dedicate more RAM to them, by increasing their caches efficiency. - -Check [RAM Requirements](/docs/netdata-agent/sizing-netdata-agents/ram-requirements.md) for more information. +6. **Streaming Compression** -## Innovations Netdata has for optimal performance and scalability + - **Impact**: Compression algorithm choice affects CPU usage and network traffic. + - **Optimization**: Select an algorithm that balances CPU efficiency with network bandwidth requirements (e.g., zstd for a good balance). -The following are some of the innovations the open-source Netdata agent has, that contribute to its excellent performance, and scalability. - -1. **Minimal disk I/O** - - When Netdata saves data on-disk, it stores them at their final place, eliminating the need to reorganize this data. - - Netdata is organizing its data structures in such a way that samples are committed to disk as evenly as possible across time, without affecting its memory requirements. +## Minimizing the resources used by Netdata Agents - Furthermore, Netdata Agents use direct-I/O for saving and loading metric samples. This prevents Netdata from polluting system caches with metric data. Netdata maintains its own caches for this data. +To optimize resource utilization, consider using a **Parent-Child** setup. - All these features make Netdata an nice partner and a polite citizen for production applications running on the same systems Netdata runs. +This approach involves centralizing the collection and processing of metrics on Parent nodes while running lightweight Children Agents on edge devices. -2. **4 bytes per sample uncompressed** +## Maximizing the scale of Parent Agents - To achieve optimal memory and disk footprint, Netdata uses a custom 32-bit floating point number. This floating point number is used to store the samples collected, together with their anomaly bit. The database of Netdata is fixed-step, so it has predefined slots for every sample, allowing Netdata to store timestamps once every several hundreds samples, minimizing both its memory requirements and the disk footprint. +Parents dynamically adjust their resource usage based on the volume of metrics received. However, for optimal query performance, you may need to dedicate more RAM. - The final disk footprint of Netdata varies due to compression efficiency. It is usually about 0.6 bytes per sample for the high-resolution tier (per-second), 6 bytes per sample for the mid-resolution tier (per-minute) and 18 bytes per sample for the low-resolution tier (per-hour). +Check [RAM Requirements](/docs/netdata-agent/sizing-netdata-agents/ram-requirements.md) for more information. -3. **Query priorities** +## Netdata's performance and scalability optimization techniques - Alerting, Machine Learning, Streaming and Replication, rely on metric queries. When multiple queries are running in parallel, Netdata assigns priorities to all of them, favoring interactive queries over background tasks. This means that queries do not compete equally for resources. Machine learning or replication may slow down when interactive queries are running and the system starves for resources. +1. **Minimal Disk I/O** -4. **A pointer per label** + Netdata directly writes metric data to disk, bypassing system caches and reducing I/O overhead. Additionally, its optimized data structures minimize disk space and memory usage through efficient compression and timestamping. - Apart from metric samples, metric labels and their cardinality is the biggest memory consumer, especially in highly ephemeral environments, like kubernetes. Netdata uses a single pointer for any label key-value pair that is reused. Keys and values are also deduplicated, providing the best possible memory footprint for metric labels. +2. **Compact Storage Engine** -5. **Streaming Protocol** + Netdata uses a custom 32-bit floating-point format tailored for efficient storage of time-series data, along with an anomaly bit. This, combined with a fixed-step database design, enables efficient storage and retrieval of data. - The streaming protocol of Netdata allows minimizing the resources consumed on production systems by delegating features of to other Netdata agents (Parents), without compromising monitoring fidelity or responsiveness, enabling the creation of a highly distributed observability platform. + | Tier | Approximate Sample Size (bytes) | + |-----------------------------------|---------------------------------| + | High-resolution tier (per-second) | 0.6 | + | Mid-resolution tier (per-minute) | 6 | + | Low-resolution tier (per-hour) | 18 | -## Netdata vs Prometheus + Timestamp optimization further reduces storage overhead by storing timestamps at regular intervals. -Netdata outperforms Prometheus in every aspect. -35% CPU Utilization, -49% RAM usage, -12% network bandwidth, -98% disk I/O, -75% in disk footprint for high resolution data, while providing more than a year of retention. +3. **Intelligent Query Engine** -Read the [full comparison here](https://blog.netdata.cloud/netdata-vs-prometheus-performance-analysis/). + Netdata prioritizes interactive queries over background tasks like machine learning and replication, ensuring optimal user experience, especially under heavy load. -## Energy Efficiency +4. **Efficient Label Storage** -University of Amsterdam contacted a research on the impact monitoring systems have on docker based systems. + Netdata uses pointers to reference shared label key-value pairs, minimizing memory usage, especially in highly dynamic environments. -The study found that Netdata excels in CPU utilization, RAM usage, Execution Time and concluded that **Netdata is the most energy efficient tool**. +5. **Scalable Streaming Protocol** -Read the [full study here](https://www.ivanomalavolta.com/files/papers/ICSOC_2023.pdf). + Netdata's streaming protocol enables the creation of distributed monitoring setups, where Children offload data processing to Parents, optimizing resource utilization. diff --git a/docs/netdata-agent/sizing-netdata-agents/bandwidth-requirements.md b/docs/netdata-agent/sizing-netdata-agents/bandwidth-requirements.md index 092c8da1..fbbc279d 100644 --- a/docs/netdata-agent/sizing-netdata-agents/bandwidth-requirements.md +++ b/docs/netdata-agent/sizing-netdata-agents/bandwidth-requirements.md @@ -1,16 +1,16 @@ # Bandwidth Requirements -## On Production Systems, Standalone Netdata +## Production Systems: Standalone Netdata Standalone Netdata may use network bandwidth under the following conditions: -1. You configured data collection jobs that are fetching data from remote systems. There is no such jobs enabled by default. +1. You configured data collection jobs that are fetching data from remote systems. There are no such jobs enabled by default. 2. You use the dashboard of the Netdata. 3. [Netdata Cloud communication](#netdata-cloud-communication) (see below). -## On Metrics Centralization Points, between Netdata Children & Parents +## Metrics Centralization Points: Between Netdata Children & Parents -Netdata supports multiple compression algorithms for streaming communication. Netdata Children offer all their compression algorithms when connecting to a Netdata Parent, and the Netdata Parent decides which one to use based on algorithms availability and user configuration. +Netdata supports multiple compression algorithms for streaming communication. Netdata Children offer all their compression algorithms when connecting to a Netdata Parent, and the Netdata Parent decides which one to use based on algorithm availability and user configuration. | Algorithm | Best for | |:---------:|:-----------------------------------------------------------------------------------------------------------------------------------:| @@ -23,7 +23,7 @@ The expected bandwidth consumption using `zstd` for 1 million samples per second The order compression algorithms is selected is configured in `stream.conf`, per `[API KEY]`, like this: -``` +```text compression algorithms order = zstd lz4 brotli gzip ``` @@ -42,6 +42,6 @@ The information transferred to Netdata Cloud is: 3. Information about the **metrics available and their retention**. 4. Information about the **configured alerts and their transitions**. -This is not a constant stream of information. Netdata Agents update Netdata Cloud only about status changes on all the above (e.g. an alert being triggered, or a metric stopped being collected). So, there is an initial handshake and exchange of information when Netdata starts, and then there only updates when required. +This is not a constant stream of information. Netdata Agents update Netdata Cloud only about status changes on all the above (e.g., an alert being triggered, or a metric stopped being collected). So, there is an initial handshake and exchange of information when Netdata starts, and then there only updates when required. Of course, when you view Netdata Cloud dashboards that need to query the database a Netdata agent maintains, this query is forwarded to an agent that can satisfy it. This means that Netdata Cloud receives metric samples only when a user is accessing a dashboard and the samples transferred are usually aggregations to allow rendering the dashboards. diff --git a/docs/netdata-agent/sizing-netdata-agents/cpu-requirements.md b/docs/netdata-agent/sizing-netdata-agents/cpu-requirements.md index 021a35fb..76580b1c 100644 --- a/docs/netdata-agent/sizing-netdata-agents/cpu-requirements.md +++ b/docs/netdata-agent/sizing-netdata-agents/cpu-requirements.md @@ -1,65 +1,43 @@ -# CPU Requirements +# CPU -Netdata's CPU consumption is affected by the following factors: +Netdata's CPU usage depends on the features you enable. For details, see [resource utilization](/docs/netdata-agent/sizing-netdata-agents/README.md). -1. The number of metrics collected -2. The frequency metrics are collected -3. Machine Learning -4. Streaming compression (streaming of metrics to Netdata Parents) -5. Database Mode +## Children -## On Production Systems, Netdata Children +With default settings on Children, CPU utilization typically falls within the range of 1% to 5% of a single core. This includes the combined resource usage of: -On production systems, where Netdata is running with default settings, monitoring the system it is installed at and its containers and applications, CPU utilization should usually be about 1% to 5% of a single CPU core. +- Three database tiers for data storage. +- Machine learning for anomaly detection. +- Per-second data collection. +- Alerts. +- Streaming to a [Parent Agent](/docs/observability-centralization-points/metrics-centralization-points/README.md). -This includes 3 database tiers, machine learning, per-second data collection, alerts, and streaming to a Netdata Parent. +## Parents -## On Metrics Centralization Points, Netdata Parents +For Netdata Parents (Metrics Centralization Points), we estimate the following CPU utilization: -On Metrics Centralization Points, Netdata Parents running on modern server hardware, we **estimate CPU utilization per million of samples collected per second**: +| Feature | Depends On | Expected Utilization (CPU cores per million) | Key Reasons | +|:--------------------:|:---------------------------------------------------:|:--------------------------------------------:|:------------------------------------------------------------------------:| +| Metrics Ingest | Number of samples received per second | 2 | Decompress and decode received messages, update database | +| Metrics re-streaming | Number of samples resent per second | 2 | Encode and compress messages towards another Parent | +| Machine Learning | Number of unique time-series concurrently collected | 2 | Train machine learning models, query existing models to detect anomalies | -| Feature | Depends On | Expected Utilization | Key Reasons | -|:-----------------:|:---------------------------------------------------:|:----------------------------------------------------------------:|:-------------------------------------------------------------------------:| -| Metrics Ingestion | Number of samples received per second | 2 CPU cores per million of samples per second | Decompress and decode received messages, update database. | -| Metrics re-streaming| Number of samples resent per second | 2 CPU cores per million of samples per second | Encode and compress messages towards Netdata Parent. | -| Machine Learning | Number of unique time-series concurrently collected | 2 CPU cores per million of unique metrics concurrently collected | Train machine learning models, query existing models to detect anomalies. | +To ensure optimal performance, keep total CPU utilization below 60% when the Parent is actively processing metrics, training models, and running health checks. -We recommend keeping the total CPU utilization below 60% when a Netdata Parent is steadily ingesting metrics, training machine learning models and running health checks. This will leave enough CPU resources available for queries. +## Increased CPU consumption on Parent startup -## I want to minimize CPU utilization. What should I do? +When a Netdata Parent starts up, it undergoes a series of initialization tasks that can temporarily increase CPU, network, and disk I/O usage: -You can control Netdata's CPU utilization with these parameters: +1. **Backfilling Higher Tiers**: The Parent calculates aggregated metrics for missing data points, ensuring consistency across different time resolutions. +2. **Metadata Synchronization**: The Parent and Children exchange metadata information about collected metrics. +3. **Data Replication**: Missing data is transferred from Children to the Parent. +4. **Normal Streaming**: Regular streaming of new metrics begins. +5. **Machine Learning Initialization**: Machine learning models are loaded and prepared for anomaly detection. +6. **Health Check Initialization**: The health engine starts monitoring metrics and triggering alerts. -1. **Data collection frequency**: Going from per-second metrics to every-2-seconds metrics will half the CPU utilization of Netdata. -2. **Number of metrics collected**: Netdata by default collects every metric available on the systems it runs. Review the metrics collected and disable data collection plugins and modules not needed. -3. **Machine Learning**: Disable machine learning to save CPU cycles. -4. **Number of database tiers**: Netdata updates database tiers in parallel, during data collection. This affects both CPU utilization and memory requirements. -5. **Database Mode**: The default database mode is `dbengine`, which compresses and commits data to disk. If you have a Netdata Parent where metrics are aggregated and saved to disk and there is a reliable connection between the Netdata you want to optimize and its Parent, switch to database mode `ram` or `alloc`. This disables saving to disk, so your Netdata will also not use any disk I/O. +Additional considerations: -## I see increased CPU consumption when a busy Netdata Parent starts, why? +- **Compression Optimization**: The compression algorithm learns data patterns to optimize compression ratios. +- **Database Optimization**: The database engine adjusts page sizes for efficient disk I/O. -When a Netdata Parent starts and Netdata children get connected to it, there are several operations that temporarily affect CPU utilization, network bandwidth and disk I/O. - -The general flow looks like this: - -1. **Back-filling of higher tiers**: Usually this means calculating the aggregates of the last hour of `tier2` and of the last minute of `tier1`, ensuring that higher tiers reflect all the information `tier0` has. If Netdata was stopped abnormally (e.g. due to a system failure or crash), higher tiers may have to be back-filled for longer durations. -2. **Metadata synchronization**: The metadata of all metrics each Netdata Child maintains are negotiated between the Child and the Parent and are synchronized. -3. **Replication**: If the Parent is missing samples the Child has, these samples are transferred to the Parent before transferring new samples. -4. Once all these finish, the normal **streaming of new metric samples** starts. -5. At the same time, **machine learning** initializes, loads saved trained models and prepares anomaly detection. -6. After a few moments the **health engine starts checking metrics** for triggering alerts. - -The above process is per metric. So, while one metric back-fills, another replicates and a third one streams. - -At the same time: - -- the compression algorithm learns the patterns of the data exchanged and optimizes its dictionaries for optimal compression and CPU utilization, -- the database engine adjusts the page size of each metric, so that samples are committed to disk as evenly as possible across time. - -So, when looking for the "steady CPU consumption during ingestion" of a busy Netdata Parent, we recommend to let it stabilize for a few hours before checking. - -Keep in mind that Netdata has been designed so that even if during the initialization phase and the connection of hundreds of Netdata Children the system lacks CPU resources, the Netdata Parent will complete all the operations and eventually enter a steady CPU consumption during ingestion, without affecting the quality of the metrics stored. So, it is ok if during initialization of a busy Netdata Parent, CPU consumption spikes to 100%. - -Important: the above initialization process is not such intense when new nodes get connected to a Netdata Parent for the first time (e.g. ephemeral nodes), since several of the steps involved are not required. - -Especially for the cases where children disconnect and reconnect to the Parent due to network related issues (i.e. both the Netdata Child and the Netdata Parent have not been restarted and less than 1 hour has passed since the last disconnection), the re-negotiation phase is minimal and metrics are instantly entering the normal streaming phase. +These initial tasks can temporarily increase resource usage, but the impact typically diminishes as the Parent stabilizes and enters a steady-state operation. diff --git a/docs/netdata-agent/sizing-netdata-agents/disk-requirements-and-retention.md b/docs/netdata-agent/sizing-netdata-agents/disk-requirements-and-retention.md index 7cd9a527..68da4400 100644 --- a/docs/netdata-agent/sizing-netdata-agents/disk-requirements-and-retention.md +++ b/docs/netdata-agent/sizing-netdata-agents/disk-requirements-and-retention.md @@ -12,7 +12,7 @@ Netdata offers two database modes to suit your needs for performance and data pe ## `dbengine` Netdata's `dbengine` mode efficiently stores data on disk using compression. The actual disk space used depends on how well the data compresses. -This mode utilizes a tiered storage approach: data is saved in multiple tiers on disk. Each tier retains data at a different resolution (detail level). Higher tiers store a down-sampled (less detailed) version of the data found in lower tiers. +This mode uses a tiered storage approach: data is saved in multiple tiers on disk. Each tier retains data at a different resolution (detail level). Higher tiers store a down-sampled (less detailed) version of the data found in lower tiers. ```mermaid gantt @@ -25,7 +25,7 @@ gantt tier2, 365d :a3, 2023-11-02, 59d ``` -`dbengine` supports up to 5 tiers. By default, 3 tiers are used: +`dbengine` supports up to five tiers. By default, three tiers are used: | Tier | Resolution | Uncompressed Sample Size | Usually On Disk | |:-------:|:--------------------------------------------------------------------------------------------:|:------------------------:|:---------------:| @@ -40,11 +40,11 @@ gantt ## `ram` -`ram` mode can help when Netdata should not introduce any disk I/O at all. In both of these modes, metric samples exist only in memory, and only while they are collected. +`ram` mode can help when Netdata shouldn’t introduce any disk I/O at all. In both of these modes, metric samples exist only in memory, and only while they’re collected. -When Netdata is configured to stream its metrics to a Metrics Observability Centralization Point (a Netdata Parent), metric samples are forwarded in real-time to that Netdata Parent. The ring buffers available in these modes is used to cache the collected samples for some time, in case there are network issues, or the Netdata Parent is restarted for maintenance. +When Netdata is configured to stream its metrics to a Metrics Observability Centralization Point (a Netdata Parent), metric samples are forwarded in real-time to that Netdata Parent. The ring buffers available in these modes are used to cache the collected samples for some time, in case there are network issues, or the Netdata Parent is restarted for maintenance. -The memory required per sample in these modes, is 4 bytes: `ram` mode uses `mmap()` behind the scene, and can be incremented in steps of 1024 samples (4KiB). Mode `ram` allows the use of the Linux kernel memory dedupper (Kernel-Same-Page or KSM) to deduplicate Netdata ring buffers and save memory. +The memory required per sample in these modes, is four bytes: `ram` mode uses `mmap()` behind the scene, and can be incremented in steps of 1024 samples (4KiB). Mode `ram` allows the use of the Linux kernel memory dedupper (Kernel-Same-Page or KSM) to deduplicate Netdata ring buffers and save memory. **Configuring ram mode and retention**: diff --git a/docs/netdata-agent/sizing-netdata-agents/ram-requirements.md b/docs/netdata-agent/sizing-netdata-agents/ram-requirements.md index 8d852251..a4ccf550 100644 --- a/docs/netdata-agent/sizing-netdata-agents/ram-requirements.md +++ b/docs/netdata-agent/sizing-netdata-agents/ram-requirements.md @@ -8,21 +8,21 @@ Netdata supports memory ballooning and automatically sizes and limits the memory With default settings, Netdata should run with 100MB to 200MB of RAM, depending on the number of metrics being collected. -This number can be lowered by limiting the number of database tier or switching database modes. For more information check [Disk Requirements and Retention](/docs/netdata-agent/sizing-netdata-agents/disk-requirements-and-retention.md). +This number can be lowered by limiting the number of database tier or switching database modes. For more information, check [Disk Requirements and Retention](/docs/netdata-agent/sizing-netdata-agents/disk-requirements-and-retention.md). ## On Metrics Centralization Points, Netdata Parents The general formula, with the default configuration of database tiers, is: -``` +```text memory = UNIQUE_METRICS x 16KiB + CONFIGURED_CACHES ``` The default `CONFIGURED_CACHES` is 32MiB. -For 1 million concurrently collected time-series (independently of their data collection frequency), the memory required is: +For one million concurrently collected time-series (independently of their data collection frequency), the memory required is: -``` +```text UNIQUE_METRICS = 1000000 CONFIGURED_CACHES = 32MiB @@ -32,16 +32,16 @@ CONFIGURED_CACHES = 32MiB about 16 GiB ``` -There are 2 cache sizes that can be configured in `netdata.conf`: +There are two cache sizes that can be configured in `netdata.conf`: -1. `[db].dbengine page cache size MB`: this is the main cache that keeps metrics data into memory. When data are not found in it, the extent cache is consulted, and if not found in that either, they are loaded from disk. -2. `[db].dbengine extent cache size MB`: this is the compressed extent cache. It keeps in memory compressed data blocks, as they appear on disk, to avoid reading them again. Data found in the extend cache but not in the main cache have to be uncompressed to be queried. +1. `[db].dbengine page cache size`: this is the main cache that keeps metrics data into memory. When data is not found in it, the extent cache is consulted, and if not found in that too, they are loaded from the disk. +2. `[db].dbengine extent cache size`: this is the compressed extent cache. It keeps in memory compressed data blocks, as they appear on disk, to avoid reading them again. Data found in the extent cache but not in the main cache have to be uncompressed to be queried. Both of them are dynamically adjusted to use some of the total memory computed above. The configuration in `netdata.conf` allows providing additional memory to them, increasing their caching efficiency. ## I have a Netdata Parent that is also a systemd-journal logs centralization point, what should I know? -Logs usually require significantly more disk space and I/O bandwidth than metrics. For optimal performance we recommend to store metrics and logs on separate, independent disks. +Logs usually require significantly more disk space and I/O bandwidth than metrics. For optimal performance, we recommend to store metrics and logs on separate, independent disks. Netdata uses direct-I/O for its database, so that it does not pollute the system caches with its own data. We want Netdata to be a nice citizen when it runs side-by-side with production applications, so this was required to guarantee that Netdata does not affect the operation of databases or other sensitive applications running on the same servers. @@ -49,9 +49,9 @@ To optimize disk I/O, Netdata maintains its own private caches. The default sett `systemd-journal` on the other hand, relies on operating system caches for improving the query performance of logs. When the system lacks free memory, querying logs leads to increased disk I/O. -If you are experiencing slow responses and increased disk reads when metrics queries run, we suggest to dedicate some more RAM to Netdata. +If you are experiencing slow responses and increased disk reads when metrics queries run, we suggest dedicating some more RAM to Netdata. -We frequently see that the following strategy gives best results: +We frequently see that the following strategy gives the best results: 1. Start the Netdata Parent, send all the load you expect it to have and let it stabilize for a few hours. Netdata will now use the minimum memory it believes is required for smooth operation. 2. Check the available system memory. diff --git a/docs/netdata-agent/start-stop-restart.md b/docs/netdata-agent/start-stop-restart.md index 6fbe18d3..21bf443a 100644 --- a/docs/netdata-agent/start-stop-restart.md +++ b/docs/netdata-agent/start-stop-restart.md @@ -1,30 +1,24 @@ -# Start, stop, or restart the Netdata Agent +# Service Control -When you install the Netdata Agent, the [daemon](/src/daemon/README.md) is -configured to start at boot and stop and restart/shutdown. +The Netdata Agent automatically starts at boot after installation. -You will most often need to _restart_ the Agent to load new or editing configuration files. -[Health configuration](#reload-health-configuration) files are the only exception, as they can be reloaded without restarting -the entire Agent. +> In most cases, you need to **restart the Netdata service** to apply changes to configuration files. Health configuration files, which define alerts, are an exception. They can be [reloaded](#reload-health) **without restarting**. +> +> Restarting the Netdata Agent will cause temporary gaps in your collected metrics. This occurs while the netdata process reinitializes its data collectors and database engine. -Stopping or restarting the Netdata Agent will cause gaps in stored metrics until the `netdata` process initiates -collectors and the database engine. +## UNIX -## Using `systemctl`, `service`, or `init.d` +### Using `systemctl`, `service`, or `init.d` -This is the recommended way to start, stop, or restart the Netdata daemon. +| Action | Systemd | Non-systemd | +|---------|--------------------------------|------------------------------| +| start | `sudo systemctl start netdata` | `sudo service netdata start` | +| stop | `sudo systemctl stop netdata` | `sudo service netdata stop` | +| restart | `sudo systemctl stop netdata` | `sudo service netdata stop` | -- To **start** Netdata, run `sudo systemctl start netdata`. -- To **stop** Netdata, run `sudo systemctl stop netdata`. -- To **restart** Netdata, run `sudo systemctl restart netdata`. +### Using `netdata` -If the above commands fail, or you know that you're using a non-systemd system, try using the `service` command: - -- **service**: `sudo service netdata start`, `sudo service netdata stop`, `sudo service netdata restart` - -## Using `netdata` - -Use the `netdata` command, typically located at `/usr/sbin/netdata`, to start the Netdata daemon. +Use the `netdata` command, typically located at `/usr/sbin/netdata`, to start the Netdata daemon. ```bash sudo netdata @@ -32,122 +26,30 @@ sudo netdata If you start the daemon this way, close it with `sudo killall netdata`. -## Using `netdatacli` +### Using `netdatacli` -The Netdata Agent also comes with a [CLI tool](/src/cli/README.md) capable of performing shutdowns. Start the Agent back up -using your preferred method listed above. +The Netdata Agent also comes with a [CLI tool](/src/cli/README.md) capable of performing shutdowns. Start the Agent back up using your preferred method listed above. ```bash sudo netdatacli shutdown-agent ``` -## Netdata MSI installations - -Netdata provides an installer for Windows using WSL, on those installations by using a Windows terminal (e.g. the Command prompt or Windows Powershell) you can: - -- Start Netdata, by running `start-netdata` -- Stop Netdata, by running `stop-netdata` -- Restart Netdata, by running `restart-netdata` +### Reload health -## Reload health configuration - -You do not need to restart the Netdata Agent between changes to health configuration files, such as specific health -entities. Instead, use [`netdatacli`](#using-netdatacli) and the `reload-health` option to prevent gaps in metrics -collection. +No need to restart the Netdata Agent after modifying health configuration files (alerts). Use `netdatacli` to avoid metric collection gaps. ```bash sudo netdatacli reload-health ``` -If `netdatacli` doesn't work on your system, send a `SIGUSR2` signal to the daemon, which reloads health configuration -without restarting the entire process. - -```bash -killall -USR2 netdata -``` - -## Force stop stalled or unresponsive `netdata` processes - -In rare cases, the Netdata Agent may stall or not properly close sockets, preventing a new process from starting. In -these cases, try the following three commands: - -```bash -sudo systemctl stop netdata -sudo killall netdata -ps aux| grep netdata -``` - -The output of `ps aux` should show no `netdata` or associated processes running. You can now start the Netdata Agent -again with `service netdata start`, or the appropriate method for your system. - -## Starting Netdata at boot - -In the `system` directory you can find scripts and configurations for the -various distros. - -### systemd - -The installer already installs `netdata.service` if it detects a systemd system. - -To install `netdata.service` by hand, run: - -```sh -# stop Netdata -killall netdata - -# copy netdata.service to systemd -cp system/netdata.service /etc/systemd/system/ - -# let systemd know there is a new service -systemctl daemon-reload - -# enable Netdata at boot -systemctl enable netdata - -# start Netdata -systemctl start netdata -``` - -### init.d - -In the system directory you can find `netdata-lsb`. Copy it to the proper place according to your distribution -documentation. For Ubuntu, this can be done via running the following commands as root. - -```sh -# copy the Netdata startup file to /etc/init.d -cp system/netdata-lsb /etc/init.d/netdata - -# make sure it is executable -chmod +x /etc/init.d/netdata - -# enable it -update-rc.d netdata defaults -``` - -### openrc (gentoo) - -In the `system` directory you can find `netdata-openrc`. Copy it to the proper -place according to your distribution documentation. - -### CentOS / Red Hat Enterprise Linux - -For older versions of RHEL/CentOS that don't have systemd, an init script is included in the system directory. This can -be installed by running the following commands as root. - -```sh -# copy the Netdata startup file to /etc/init.d -cp system/netdata-init-d /etc/init.d/netdata - -# make sure it is executable -chmod +x /etc/init.d/netdata - -# enable it -chkconfig --add netdata -``` +## Windows -_There have been some recent work on the init script, see PR -<https://github.com/netdata/netdata/pull/403>_ +> **Note** +> +> You will need to run PowerShell as administrator. -### other systems +- To **start** Netdata, run `Start-Service Netdata`. +- To **stop** Netdata, run `Stop-Service Netdata`. +- To **restart** Netdata, run `Restart-Service Netdata`. -You can start Netdata by running it from `/etc/rc.local` or equivalent. +If you prefer to manage the Agent through the GUI, you can start-stop and restart the `Netdata` service from the "Services" tab of Task Manager. diff --git a/docs/netdata-agent/versions-and-platforms.md b/docs/netdata-agent/versions-and-platforms.md index 14dc393b..1f5bf6a9 100644 --- a/docs/netdata-agent/versions-and-platforms.md +++ b/docs/netdata-agent/versions-and-platforms.md @@ -1,6 +1,6 @@ # Netdata Agent Versions & Platforms -Netdata is evolving rapidly and new features are added at a constant pace. Therefore we have a frequent release cadence to deliver all these features to use as soon as possible. +Netdata is evolving rapidly and new features are added at a constant pace. Therefore, we have a frequent release cadence to deliver all these features to use as soon as possible. Netdata Agents are available in 2 versions: @@ -9,11 +9,11 @@ Netdata Agents are available in 2 versions: | Stable | At most once per month, usually every 45 days | Receiving bug fixes and security updates between releases | Up to the 2nd stable release after them | Previous configuration semantics and data are supported by newer releases | | Nightly | Every night at 00:00 UTC | Latest pre-released features | Up to the 2nd nightly release after them | Configuration and data of unreleased features may change between nightly releases | -> "Support Duration" defines the time we consider the release as actively used by users in production systems, so that all features of Netdata should be working like the day they were released. However, after the latest release, previous releases stop receiving bug fixes and security updates. All users are advised to update to the latest release to get the latest bug fixes. +> "Support Duration" defines the time we consider the release as actively used by users in production systems, so that all features of Netdata should be working like the day they were released. However, after the latest release, previous releases stop receiving bug fixes and security updates. All users are advised to update to the latest release to get the latest bug fixes. ## Binary Distribution Packages -Binary distribution packages are provided by Netdata, via CI integration, for the following platforms and architectures: +Binary distribution packages are provided by Netdata, via CI integration, for the following platforms and architectures: | Platform | Platform Versions | Released Packages Architecture | Format | |:-----------------------:|:--------------------------------:|:------------------------------------------------:|:------------:| @@ -30,7 +30,7 @@ Binary distribution packages are provided by Netdata, via CI integration, for th | Redhat Enterprise Linux | 8.x, 9.x | `x86_64`, `AArch64` | RPM | | Ubuntu | 20.04, 22.04, 23.10 | `x86_64`, `i386`, `ARMv7`, `AArch64` | DEB | -> IMPORTANT: Linux distributions frequently provide binary packages of Netdata. However, the packages you will find in the distributions' repositories may be outdated, incomplete, missing significant features or completely broken. We recommend using the packages we provide. +> IMPORTANT: Linux distributions frequently provide binary packages of Netdata. However, the packages you will find in the distributions' repositories may be outdated, incomplete, missing significant features or completely broken. We recommend using the packages we provide. ## Third-party Supported Binary Packages @@ -41,7 +41,6 @@ The following distributions always provide the latest stable version of Netdata: | Arch Linux | Latest | All the Arch supported architectures | | MacOS Brew | Latest | All the Brew supported architectures | - ## Builds from Source We guarantee Netdata builds from source for the platforms we provide automated binary packages. These platforms are automatically checked via our CI, and fixes are always applied to allow merging new code into the nightly versions. @@ -59,9 +58,9 @@ The following builds from source should usually work, although we don't regularl ## Static Builds and Unsupported Linux Versions -The static builds of Netdata can be used on any Linux platform of the supported architectures. The only requirement these static builds have is a working Linux kernel, any version. Everything else required for Netdata to run, is inside the package itself. +The static builds of Netdata can be used on any Linux platform of the supported architectures. The only requirement these static builds have is a working Linux kernel, any version. Everything else required for Netdata to run is inside the package itself. -Static builds usually miss certain features that require operating-system support and cannot be provided in a generic way. These features include: +Static builds usually miss certain features that require operating-system support and can’t be provided generically. These features include: - IPMI hardware sensors support - systemd-journal features diff --git a/docs/netdata-assistant.md b/docs/netdata-assistant.md index afa13f6e..e01aa277 100644 --- a/docs/netdata-assistant.md +++ b/docs/netdata-assistant.md @@ -7,14 +7,14 @@ The Netdata Assistant is a feature that uses large language models and the Netda - Navigate to the alerts tab - If there are active alerts, the `Actions` column will have an Assistant button -  +  - Clicking on the Assistant button opens up as a floating window with customized information and troubleshooting tips for this alert (note that the window can follow you through your troubleshooting journey on Netdata dashboards) -  +  -- In case you need more information, or want to understand deeper, Netdata Assistant also provides useful web links to resources that can help. +- In case you need more information, or want to understand deeper, Netdata Assistant also provides useful web links to resources that can help. -  +  - If there are no active alerts, you can still use Netdata Assistant by clicking the Assistant button on the Alert Configuration view. diff --git a/docs/netdata-cloud/authentication-and-authorization/api-tokens.md b/docs/netdata-cloud/authentication-and-authorization/api-tokens.md index 88b73ee6..a8f304ff 100644 --- a/docs/netdata-cloud/authentication-and-authorization/api-tokens.md +++ b/docs/netdata-cloud/authentication-and-authorization/api-tokens.md @@ -30,5 +30,5 @@ Currently, the Netdata Cloud is not exposing stable API. * get the cloud space list ```console -$ curl -H 'Accept: application/json' -H "Authorization: Bearer <token>" https://app.netdata.cloud/api/v2/spaces +curl -H 'Accept: application/json' -H "Authorization: Bearer <token>" https://app.netdata.cloud/api/v2/spaces ``` diff --git a/docs/netdata-cloud/authentication-and-authorization/enterprise-sso-authentication.md b/docs/netdata-cloud/authentication-and-authorization/enterprise-sso-authentication.md index 7657e8bc..184ff5db 100644 --- a/docs/netdata-cloud/authentication-and-authorization/enterprise-sso-authentication.md +++ b/docs/netdata-cloud/authentication-and-authorization/enterprise-sso-authentication.md @@ -1,36 +1,47 @@ # Enterprise SSO Authentication Netdata provides you with means to streamline and control how your team connects and authenticates to Netdata Cloud. We provide - diferent Single Sign-On (SSO) integrations that allow you to connect with the tool that your organization is using to manage your + different Single Sign-On (SSO) integrations that allow you to connect with the tool that your organization is using to manage your user accounts. - > ❗ This feature focus is on the Authentication flow, it doesn't support the Authorization with managing Users and Roles. - + > **Note** This feature focus is on the Authentication flow, it doesn't support the Authorization with managing Users and Roles. ## How to set it up? If you want to setup your Netdata Space to allow user Authentication through an Enterprise SSO tool you need to: -* Confirm the integration to the tool you want is available ([Authentication integations](https://learn.netdata.cloud/docs/netdata-cloud/authentication-&-authorization/cloud-authentication-&-authorization-integrations)) + +* Confirm the integration to the tool you want is available ([Authentication integrations](https://learn.netdata.cloud/docs/netdata-cloud/authentication-&-authorization/cloud-authentication-&-authorization-integrations)) * Have a Netdata Cloud account * Have Access to the Space as an administrator * Your Space needs to be on the Business plan or higher Once you ensure the above prerequisites you need to: + 1. Click on the Space settings cog (located above your profile icon) 2. Click on the Authentication tab 3. Select the card for the integration you are looking for, click on Configure 4. Fill the required attributes need to establish the integration with the tool - ## How to authenticate to Netdata? ### From Netdata Sign-up page -If you're starting your flow from Netdata sign-in page you need to: -1. Click on the link `Sign-in with an Enterprise Signle Sign-On (SSO)` -2. Enter your email address -3. Go to your mailbox and check the `Sign In to Nedata` email that you have received -4. Click on the **Sign In** button +#### Requirements + +You have to update your DNS settings by adding a TXT record with the Netdata verification code as its **Value**. +The **Value** can be found by clicking the **DNS TXT record** button in your space settings under **User Management**, in the** Authentication & Authorization** tab. + +Log into your domain provider’s website, and navigate to the DNS records section. +Create a new TXT record with the following specifications: +- Value/Answer/Description: `"netdata-verification=[VERIFICATION CODE]"` +- Name/Host/Alias: Leave this blank or type @ to include a subdomain. +- Time to live (TTL): "86400" (this can also be inherited from the default configuration). + +#### Starting the flow from Netdata sign-in page + +1. Click on the link `Sign-in with an Enterprise Single Sign-On (SSO)` +2. Enter your email address +3. Complete the SSO flow Note: If you're not authenticated on the Enterprise SSO tool you'll be prompted to authenticate there first before being allowed to proceed to Netdata Cloud. diff --git a/docs/netdata-cloud/authentication-and-authorization/role-based-access-model.md b/docs/netdata-cloud/authentication-and-authorization/role-based-access-model.md index d2a3ea4f..2226a1a0 100644 --- a/docs/netdata-cloud/authentication-and-authorization/role-based-access-model.md +++ b/docs/netdata-cloud/authentication-and-authorization/role-based-access-model.md @@ -108,9 +108,9 @@ In more detail, you can find on the following tables which functionalities are a | **Functionality** | **Admin** | **Manager** | **Troubleshooter** | **Observer** | **Billing** | **Member** | Notes | |:-------------------------------|:------------------:|:------------------:|:------------------:|:------------------:|:-----------:|:------------------:|:---------------------------------------------------------------------| -| See all functions in Room | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | - | :heavy_check_mark: | -| Run any function in Room | :heavy_check_mark: | :heavy_check_mark: | - | - | - | - | -| Run read-only function in Room | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | - | :heavy_check_mark: | | +| See all functions in Room | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | - | :heavy_check_mark: | :: | +| Run any function in Room | :heavy_check_mark: | :heavy_check_mark: | - | - | - | - | :: | +| Run read-only function in Room | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | - | :heavy_check_mark: | :: | | Run sensitive function in Room | :heavy_check_mark: | :heavy_check_mark: | - | - | - | - | There isn't any function on this category yet, so subject to change. | ### Events feed diff --git a/docs/netdata-cloud/netdata-cloud-on-prem/installation.md b/docs/netdata-cloud/netdata-cloud-on-prem/installation.md index 259ddb5c..a23baa99 100644 --- a/docs/netdata-cloud/netdata-cloud-on-prem/installation.md +++ b/docs/netdata-cloud/netdata-cloud-on-prem/installation.md @@ -10,6 +10,20 @@ The following components are required to install Netdata Cloud On-Prem: - **Helm** version 3.12+ with OCI Configuration (explained in the installation section) - **Kubectl** +The minimum requirements for Netdata-Cloud are: + +- 4 CPU cores +- 15GiB of memory +- Cloud services are ephemeral + +The requirements for the non-production Dependencies helm chart: + +- 8 CPU cores +- 14GiB of memory +- 160GiB for PVCs (SSD) + +> **_NOTE:_** Values for each component may vary depending on the type of load. The most compute-intensive task that the On-Prem needs to perform is the initial sync of directly connected Agents. The testing for these requirements was conducted with 1,000 nodes directly connected to the On-Prem. If you plan on spawning hundreds of new nodes within a few minutes, Postgres will be the first bottleneck. For example, a 2 vCPU / 8 GiB memory / 1k IOPS database can handle 1,000 nodes without any problems if your environment is fairly steady, adding nodes in batches of 10-30 (directly connected). + ## Preparations for Installation ### Configure AWS CLI @@ -103,39 +117,40 @@ helm upgrade --wait --install netdata-cloud-onprem -n netdata-cloud --create-nam ## Short description of Netdata Cloud microservices -#### cloud-accounts-service +### cloud-accounts-service Responsible for user registration & authentication. Manages user account information. -#### cloud-agent-data-ctrl-service +### cloud-agent-data-ctrl-service Forwards request from the cloud to the relevant agents. The requests include: + - Fetching chart metadata from the agent - Fetching chart data from the agent - Fetching function data from the agent -#### cloud-agent-mqtt-input-service +### cloud-agent-mqtt-input-service Forwards MQTT messages emitted by the agent related to the agent entities to the internal Pulsar broker. These include agent connection state updates. -#### cloud-agent-mqtt-output-service +### cloud-agent-mqtt-output-service Forwards Pulsar messages emitted in the cloud related to the agent entities to the MQTT broker. From there, the messages reach the relevant agent. -#### cloud-alarm-config-mqtt-input-service +### cloud-alarm-config-mqtt-input-service Forwards MQTT messages emitted by the agent related to the alarm-config entities to the internal Pulsar broker. These include the data for the alarm configuration as seen by the agent. -#### cloud-alarm-log-mqtt-input-service +### cloud-alarm-log-mqtt-input-service Forwards MQTT messages emitted by the agent related to the alarm-log entities to the internal Pulsar broker. These contain data about the alarm transitions that occurred in an agent. -#### cloud-alarm-mqtt-output-service +### cloud-alarm-mqtt-output-service Forwards Pulsar messages emitted in the cloud related to the alarm entities to the MQTT broker. From there, the messages reach the relevant agent. -#### cloud-alarm-processor-service +### cloud-alarm-processor-service Persists latest alert statuses received from the agent in the cloud. Aggregates alert statuses from relevant node instances. @@ -143,69 +158,69 @@ Exposes API endpoints to fetch alert data for visualization on the cloud. Determines if notifications need to be sent when alert statuses change and emits relevant messages to Pulsar. Exposes API endpoints to store and return notification-silencing data. -#### cloud-alarm-streaming-service +### cloud-alarm-streaming-service Responsible for starting the alert stream between the agent and the cloud. Ensures that messages are processed in the correct order, and starts a reconciliation process between the cloud and the agent if out-of-order processing occurs. -#### cloud-charts-mqtt-input-service +### cloud-charts-mqtt-input-service Forwards MQTT messages emitted by the agent related to the chart entities to the internal Pulsar broker. These include the chart metadata that is used to display relevant charts on the cloud. -#### cloud-charts-mqtt-output-service +### cloud-charts-mqtt-output-service Forwards Pulsar messages emitted in the cloud related to the charts entities to the MQTT broker. From there, the messages reach the relevant agent. -#### cloud-charts-service +### cloud-charts-service Exposes API endpoints to fetch the chart metadata. Forwards data requests via the `cloud-agent-data-ctrl-service` to the relevant agents to fetch chart data points. Exposes API endpoints to call various other endpoints on the agent, for instance, functions. -#### cloud-custom-dashboard-service +### cloud-custom-dashboard-service Exposes API endpoints to fetch and store custom dashboard data. -#### cloud-environment-service +### cloud-environment-service Serves as the first contact point between the agent and the cloud. Returns authentication and MQTT endpoints to connecting agents. -#### cloud-feed-service +### cloud-feed-service Processes incoming feed events and stores them in Elasticsearch. Exposes API endpoints to fetch feed events from Elasticsearch. -#### cloud-frontend +### cloud-frontend Contains the on-prem cloud website. Serves static content. -#### cloud-iam-user-service +### cloud-iam-user-service Acts as a middleware for authentication on most of the API endpoints. Validates incoming token headers, injects the relevant ones, and forwards the requests. -#### cloud-metrics-exporter +### cloud-metrics-exporter Exports various metrics from an On-Prem Cloud installation. Uses the Prometheus metric exposition format. -#### cloud-netdata-assistant +### cloud-netdata-assistant Exposes API endpoints to fetch a human-friendly explanation of various netdata configuration options, namely the alerts. -#### cloud-node-mqtt-input-service +### cloud-node-mqtt-input-service Forwards MQTT messages emitted by the agent related to the node entities to the internal Pulsar broker. These include the node metadata as well as their connectivity state, either direct or via parents. -#### cloud-node-mqtt-output-service +### cloud-node-mqtt-output-service Forwards Pulsar messages emitted in the cloud related to the charts entities to the MQTT broker. From there, the messages reach the relevant agent. -#### cloud-notifications-dispatcher-service +### cloud-notifications-dispatcher-service Exposes API endpoints to handle integrations. Handles incoming notification messages and uses the relevant channels(email, slack...) to notify relevant users. -#### cloud-spaceroom-service +### cloud-spaceroom-service Exposes API endpoints to fetch and store relations between agents, nodes, spaces, users, and rooms. Acts as a provider of authorization for other cloud endpoints. diff --git a/docs/netdata-cloud/versions.md b/docs/netdata-cloud/versions.md index 06a8f706..1bfd363d 100644 --- a/docs/netdata-cloud/versions.md +++ b/docs/netdata-cloud/versions.md @@ -4,7 +4,7 @@ Netdata Cloud is provided in two versions: - **SaaS**, we run and maintain Netdata Cloud and users use it to complement their observability with the additional features it provides. -- **On Prem**, we provide a licensed copy of the Netdata Cloud software, that users can install and run at their premises. +- **On Prem**, we provide a licensed copy of the Netdata Cloud software, that users can install and run at their premises. The pricing of both versions is similar, with the On-Prem version introducing a monthly fixed-fee for the extra support and packaging required when users are running Netdata Cloud by themselves. diff --git a/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/active-journal-source-without-encryption.md b/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/active-journal-source-without-encryption.md index cbed1e81..8abccad0 100644 --- a/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/active-journal-source-without-encryption.md +++ b/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/active-journal-source-without-encryption.md @@ -47,7 +47,7 @@ sudo systemctl enable --now systemd-journal-gatewayd.socket To use it, open your web browser and navigate to: -``` +```url http://server.ip:19531/browse ``` diff --git a/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/passive-journal-centralization-with-encryption-using-self-signed-certificates.md b/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/passive-journal-centralization-with-encryption-using-self-signed-certificates.md index 7f0b7152..8509a33d 100644 --- a/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/passive-journal-centralization-with-encryption-using-self-signed-certificates.md +++ b/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/passive-journal-centralization-with-encryption-using-self-signed-certificates.md @@ -26,7 +26,7 @@ This helps to also automate the distribution of the certificates to your servers We suggest to keep this script and all the involved certificates at the journals centralization server, in the directory `/etc/ssl/systemd-journal`, so that you can make future changes as required. If you prefer to keep the certificate authority and all the certificates at a more secure location, just use the script on that location. -On the server that will issue the certificates (usually the centralizaton server), do the following: +On the server that will issue the certificates (usually the centralization server), do the following: ```bash # install systemd-journal-remote to add the users and groups required and openssl for the certs @@ -150,7 +150,7 @@ sudo apt-get install systemd-journal-remote Edit `/etc/systemd/journal-upload.conf` and set the IP address and the port of the server, like so: -```conf +```text [Upload] URL=https://centralization.server.ip:19532 ``` @@ -165,7 +165,7 @@ sudo systemctl edit systemd-journal-upload.service At the top, add: -```conf +```text [Service] Restart=always ``` diff --git a/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/passive-journal-centralization-without-encryption.md b/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/passive-journal-centralization-without-encryption.md index b70c2203..a89379e4 100644 --- a/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/passive-journal-centralization-without-encryption.md +++ b/docs/observability-centralization-points/logs-centralization-points-with-systemd-journald/passive-journal-centralization-without-encryption.md @@ -74,7 +74,7 @@ sudo apt-get install systemd-journal-remote Edit `/etc/systemd/journal-upload.conf` and set the IP address and the port of the server, like so: -```conf +```text [Upload] URL=http://centralization.server.ip:19532 ``` @@ -87,7 +87,7 @@ sudo systemctl edit systemd-journal-upload At the top, add: -```conf +```text [Service] Restart=always ``` diff --git a/docs/observability-centralization-points/metrics-centralization-points/clustering-and-high-availability-of-netdata-parents.md b/docs/observability-centralization-points/metrics-centralization-points/clustering-and-high-availability-of-netdata-parents.md index 17a10b02..412263be 100644 --- a/docs/observability-centralization-points/metrics-centralization-points/clustering-and-high-availability-of-netdata-parents.md +++ b/docs/observability-centralization-points/metrics-centralization-points/clustering-and-high-availability-of-netdata-parents.md @@ -45,6 +45,6 @@ The easiest way is to `rsync` the directory `/var/cache/netdata` from the existi To configure retention at the new Netdata Parent, set in `netdata.conf` the following to at least the values the old Netdata Parent has: -- `[db].dbengine multihost disk space MB`, this is the max disk size for `tier0`. The default is 256MiB. -- `[db].dbengine tier 1 multihost disk space MB`, this is the max disk space for `tier1`. The default is 50% of `tier0`. -- `[db].dbengine tier 2 multihost disk space MB`, this is the max disk space for `tier2`. The default is 50% of `tier1`. +- `[db].dbengine tier 0 retention size`, this is the max disk size for `tier0`. The default is 1GiB. +- `[db].dbengine tier 1 retention size`, this is the max disk space for `tier1`. The default is 1GiB. +- `[db].dbengine tier 2 retention size`, this is the max disk space for `tier2`. The default is 1GiB. diff --git a/docs/observability-centralization-points/metrics-centralization-points/configuration.md b/docs/observability-centralization-points/metrics-centralization-points/configuration.md index bf2aa98d..d1f13f05 100644 --- a/docs/observability-centralization-points/metrics-centralization-points/configuration.md +++ b/docs/observability-centralization-points/metrics-centralization-points/configuration.md @@ -58,7 +58,7 @@ Save the file and restart Netdata. While encrypting the connection between your parent and child nodes is recommended for security, it's not required to get started. -This example uses self-signed certificates. +This example uses self-signed certificates. > **Note** > This section assumes you have read the documentation on [how to edit the Netdata configuration files](/docs/netdata-agent/configuration/README.md). @@ -70,7 +70,7 @@ This example uses self-signed certificates. 2. **Child node** Update `stream.conf` to enable SSL/TLS and allow self-signed certificates. Append ':SSL' to the destination and uncomment 'ssl skip certificate verification'. - ```conf + ```text [stream] enabled = yes destination = 203.0.113.0:SSL @@ -80,8 +80,6 @@ This example uses self-signed certificates. 3. Restart the Netdata Agent on both the parent and child nodes, to stream encrypted metrics using TLS/SSL. - - ## Troubleshooting Streaming Connections You can find any issues related to streaming at Netdata logs. diff --git a/docs/observability-centralization-points/metrics-centralization-points/faq.md b/docs/observability-centralization-points/metrics-centralization-points/faq.md index 027dfc74..1ce0d853 100644 --- a/docs/observability-centralization-points/metrics-centralization-points/faq.md +++ b/docs/observability-centralization-points/metrics-centralization-points/faq.md @@ -65,6 +65,14 @@ It depends on the ephemerality setting of each Netdata Child. 2. **Ephemeral nodes**: These are nodes that are ephemeral by nature and they may shutdown at any point in time without any impact on the services you run. -To set the ephemeral flag on a node, edit its netdata.conf and in the `[health]` section set `is ephemeral = yes`. This setting is propagated to parent nodes and Netdata Cloud. +To set the ephemeral flag on a node, edit its netdata.conf and in the `[global]` section set `is ephemeral node = yes`. This setting is propagated to parent nodes and Netdata Cloud. + +A parent node tracks connections and disconnections. When a node is marked as ephemeral and stops connecting for more than 24 hours, the parent will delete it from its memory and local administration, and tell Cloud that it is no longer live nor stale. Data for the node can no longer be accessed, but if the node connects again later, the node will be "revived", and previous data becomes available again. + +A node can be forced into this "forgotten" state with the Netdata CLI tool on the parent the node is connected to (if still connected) or one of the parent agents it was previously connected to. The state will be propagated _upwards_ and _sideways_ in case of an HA setup. + +``` +netdatacli remove-stale-node <node_id | machine_guid | hostname | ALL_NODES> +``` When using Netdata Cloud (via a parent or directly) and a permanent node gets disconnected, Netdata Cloud sends node disconnection notifications. diff --git a/docs/observability-centralization-points/metrics-centralization-points/replication-of-past-samples.md b/docs/observability-centralization-points/metrics-centralization-points/replication-of-past-samples.md index 5c776b86..e0c60e89 100644 --- a/docs/observability-centralization-points/metrics-centralization-points/replication-of-past-samples.md +++ b/docs/observability-centralization-points/metrics-centralization-points/replication-of-past-samples.md @@ -45,13 +45,13 @@ The following `netdata.conf` configuration parameters affect replication. On the receiving side (Netdata Parent): -- `[db].seconds to replicate` limits the maximum time to be replicated. The default is 1 day (86400 seconds). Keep in mind that replication is also limited by the `tier0` retention the sending side has. +- `[db].replication period` limits the maximum time to be replicated. The default is 1 day. Keep in mind that replication is also limited by the `tier0` retention the sending side has. On the sending side (Netdata Children, or Netdata Parent when parents are clustered): - `[db].replication threads` controls how many concurrent threads will be replicating metrics. The default is 1. Usually the performance is about 2 million samples per second per thread, so increasing this number may allow replication to progress faster between Netdata Parents. -- `[db].cleanup obsolete charts after secs` controls for how much time after metrics stop being collected will not be available for replication. The default is 1 hour (3600 seconds). If you plan to have scheduled maintenance on Netdata Parents of more than 1 hour, we recommend increasing this setting. Keep in mind however, that increasing this duration in highly ephemeral environments can have an impact on RAM utilization, since metrics will be considered as collected for longer durations. +- `[db].cleanup obsolete charts after` controls for how much time after metrics stop being collected will not be available for replication. The default is 1 hour (3600 seconds). If you plan to have scheduled maintenance on Netdata Parents of more than 1 hour, we recommend increasing this setting. Keep in mind however, that increasing this duration in highly ephemeral environments can have an impact on RAM utilization, since metrics will be considered as collected for longer durations. ## Monitoring Replication Progress diff --git a/docs/security-and-privacy-design/README.md b/docs/security-and-privacy-design/README.md index c6bfd699..da484bc0 100644 --- a/docs/security-and-privacy-design/README.md +++ b/docs/security-and-privacy-design/README.md @@ -1,9 +1,8 @@ # Security and Privacy Design This document serves as the relevant Annex to the [Terms of Service](https://www.netdata.cloud/service-terms/), -the [Privacy Policy](https://www.netdata.cloud/privacy/) and -the Data Processing Addendum, when applicable. It provides more information regarding Netdata’s technical and -organizational security and privacy measures. +the [Privacy Policy](https://www.netdata.cloud/privacy/) and the Data Processing Addendum, when applicable. +It provides more information regarding Netdata’s technical and organizational security and privacy measures. We have given special attention to all aspects of Netdata, ensuring that everything throughout its operation is as secure as possible. Netdata has been designed with security in mind. @@ -16,6 +15,13 @@ Netdata, an open-source software widely installed across the globe, prioritizes commitment to safeguarding user data. The entire structure and internal architecture of the software is built to ensure maximum security. We aim to provide a secure environment from the ground up, rather than as an afterthought. +Netdata Cloud ensures a secure, user-centric environment for monitoring and troubleshooting, treating +observability data and observability metadata distinctly to maintain user control over system insights and +personal information. **Observability data**, which includes metric values (time series) and log events, remains +fully under user control, stored locally on the user's premises. **Observability metadata**, including hostnames, +metric names, alert names, and alert transitions, is minimally required by Netdata Cloud and securely managed +for routing and platform usage purposes. + ### Compliance with Open Source Security Foundation Best Practices Netdata is committed to adhering to the best practices laid out by the Open Source Security Foundation (OSSF). @@ -23,7 +29,7 @@ Currently, the Netdata Agent follows the OSSF best practices at the passing leve the [OSSF guidelines](https://bestpractices.coreinfrastructure.org/en/projects/2231) Netdata Cloud boasts of comprehensive end-to-end automated testing, encompassing the UI, back-end, and agents, where -involved. In addition, the Netdata Agent uses an array of third-party services for static code analysis, static code +involved. In addition, the Netdata Agent uses an array of third-party services for static code analysis, security analysis, and CI/CD integrations to ensure code quality on a per pull request basis. Tools like Github's CodeQL, Github's Dependabot, our own unit tests, various types of linters, and [Coverity](https://scan.coverity.com/projects/netdata-netdata?tab=overview) are utilized to this end. @@ -75,16 +81,20 @@ protection laws, including the GDPR and CCPA. ### Data Transfers -While Netdata Agent itself does not engage in any cross-border data transfers, certain personal and infrastructure data -is transferred to Netdata Cloud for the purpose of providing its services. The metric data collected and processed by -Netdata Agents, however, stays strictly within the user's infrastructure, eliminating any concerns about cross-border -data transfer issues. +While Netdata Agent itself does not engage in any cross-border data transfers, certain **observability metadata** (e.g. +hostnames, metric names, alert names, and alert transitions) is transferred to Netdata Cloud solely to provide routing +and alert notifications. **Observability data**, consisting of metric values (time series) and log events, stays +strictly within the user's infrastructure, mitigating cross-border data transfer concerns. + +For users leveraging Netdata Cloud, **observability data** is securely tunneled through Netdata Cloud for real-time +viewing, similar to a VPN, without being stored on Netdata Cloud servers. This approach ensures that Netdata Cloud +maintains only necessary metadata, while full control of observability data remains with the user. -When users utilize Netdata Cloud, the metric data is streamed directly from the Netdata Agent to the users’ web browsers -via Netdata Cloud, without being stored on Netdata Cloud's servers. However, user identification data (such as email -addresses) and infrastructure metadata necessary for Netdata Cloud's operation are stored in data centers in the United -States, using compliant infrastructure providers such as Google Cloud and Amazon Web Services. These transfers and -storage are carried out in full compliance with applicable data protection laws, including GDPR and CCPA. +Netdata Cloud only stores Netdata Cloud users identification data (such as observability users' email addresses) and +infrastructure metadata (such as infrastructure hostnames) necessary for Netdata Cloud's operation. All these metadata +are stored in data centers in the United States, using compliant infrastructure providers such as Google Cloud and +Amazon Web Services. These transfers and storage are carried out in full compliance with applicable data protection +laws, including GDPR and CCPA. ### Privacy Rights @@ -104,9 +114,11 @@ and reach out with any questions or concerns they may have about data protection ## Anonymous Statistics -The anonymous statistics collected by the Netdata Agent are related to the installations and not to individual users. -This data includes community size, types of plugins used, possible crashes, operating systems installed, and the use of -the registry feature. No IP addresses are collected, but each Netdata installation has a unique ID. +The anonymous statistics collected by the Netdata Agent pertain to installations rather than individual users, +capturing general information such as community size, plugin types, crashes, operating systems, and feature usage. +Importantly, **observability data** — metric values and log events — remain local to the user's infrastructure and +are not collected in this process. **Observability metadata**, including unique IDs for installations, is anonymized +and stored solely to support product development and community understanding. Netdata also collects anonymous telemetry events, which provide information on the usage of various features, errors, and performance metrics. This data is used to understand how the software is being used and to identify areas for @@ -130,41 +142,45 @@ improvement, while respecting user privacy and maintaining transparency. Internal Security Measures at Netdata are designed with an emphasis on data privacy and protection. The measures include: -1. **Infrastructure as Code (IaC)** : +1. **Observability data and metadata distinction** + Netdata Cloud securely handles observability metadata in isolated environments, while observability data remains + exclusively within user premises, stored locally and managed by the user. This distinction ensures that only + minimal metadata is required for routing and system identification. +3. **Infrastructure as Code (IaC)** : Netdata Cloud follows the IaC model, which means it is a microservices environment that is completely isolated. All changes are managed through Terraform, an open-source IaC software tool that provides a consistent CLI workflow for managing cloud services. -2. **TLS Termination and IAM Service** : +4. **TLS Termination and IAM Service** : At the edge of Netdata Cloud, there is a TLS termination, which provides the decryption point for incoming TLS connections. Additionally, an Identity Access Management (IAM) service validates JWT tokens included in request cookies or denies access to them. -3. **Session Identification** : +5. **Session Identification** : Once inside the microservices environment, all requests are associated with session IDs that identify the user making the request. This approach provides additional layers of security and traceability. -4. **Data Storage** : +6. **Data Storage** : Data is stored in various NoSQL and SQL databases and message brokers. The entire environment is fully isolated, providing a secure space for data management. -5. **Authentication** : +7. **Authentication** : Netdata Cloud does not store credentials. It offers three types of authentication: GitHub Single Sign-On (SSO), Google SSO, and email validation. -6. **DDoS Protection** : +8. **DDoS Protection** : Netdata Cloud has multiple protection mechanisms against Distributed Denial of Service (DDoS) attacks, including rate-limiting and automated blacklisting. -7. **Security-Focused Development Process** : +9. **Security-Focused Development Process** : To ensure a secure environment, Netdata employs a security-focused development process. This includes the use of - static code analysers to identify potential security vulnerabilities in the codebase. -8. **High Security Standards** : + static code analyzers to identify potential security vulnerabilities in the codebase. +10. **High Security Standards** : Netdata Cloud maintains high security standards and can provide additional customization on a per contract basis. -9. **Employee Security Practices** : +11. **Employee Security Practices** : Netdata ensures its employees follow security best practices, including role-based access, periodic access review, and multi-factor authentication. This helps to minimize the risk of unauthorized access to sensitive data. -10. **Experienced Developers** : +12. **Experienced Developers** : Netdata hires senior developers with vast experience in security-related matters. It enforces two code reviews for every Pull Request (PR), ensuring that any potential issues are identified and addressed promptly. -11. **DevOps Methodologies** : +13. **DevOps Methodologies** : Netdata's DevOps methodologies use the highest standards in access control in all places, utilizing the best practices available. -12. **Risk-Based Security Program** : +14. **Risk-Based Security Program** : Netdata has a risk-based security program that continually assesses and mitigates risks associated with data security. This program helps maintain a secure environment for user data. @@ -243,7 +259,12 @@ Netdata is committed to continuous improvement in security and privacy. While we ## Conclusion -In conclusion, Netdata Cloud's commitment to data security and user privacy is paramount. From the careful design of the +Netdata Cloud is designed to secure observability insights for users, maintaining a clear separation between +observability data and observability metadata. All observability data — metric values and log events — are stored locally, +entirely under user control, while only essential metadata (hostnames, metric names, alert details) is managed by Netdata +Cloud for system routing and alerting. + +Netdata Cloud's commitment to data security and user privacy is paramount. From the careful design of the infrastructure and stringent internal security measures to compliance with international regulations and standards like GDPR and CCPA, Netdata Cloud ensures a secure environment for users to monitor and troubleshoot their systems. diff --git a/docs/security-and-privacy-design/netdata-agent-security.md b/docs/security-and-privacy-design/netdata-agent-security.md index f441fe85..d2e2e142 100644 --- a/docs/security-and-privacy-design/netdata-agent-security.md +++ b/docs/security-and-privacy-design/netdata-agent-security.md @@ -14,7 +14,6 @@ databases, sent to upstream Netdata servers, or archived to external time-series > > Users are responsible for backing up, recovering, and ensuring their data's availability because Netdata stores data locally on each system due to its decentralized architecture. - The Netdata Agent is programmed to safeguard user data. When collecting data, the raw data does not leave the host. All plugins, even those running with escalated capabilities or privileges, perform a hard-coded data collection job. They do not accept commands from Netdata, and the original application data collected do not leave the process they are @@ -60,7 +59,7 @@ information can be found [here](https://github.com/netdata/netdata/security/poli The Netdata agent is resilient against common security threats such as DDoS attacks and SQL injections. For DDoS, Netdata agent uses a fixed number of threads for processing requests, providing a cap on the resources that can be -consumed. It also automatically manages its memory to prevent overutilization. SQL injections are prevented as nothing +consumed. It also automatically manages its memory to prevent over-utilization. SQL injections are prevented as nothing from the UI is passed back to the data collection plugins accessing databases. Additionally, the Netdata agent is running as a normal, unprivileged, operating system user (a few data collections diff --git a/docs/security-and-privacy-design/netdata-cloud-security.md b/docs/security-and-privacy-design/netdata-cloud-security.md index 1f1bb67d..1df02286 100644 --- a/docs/security-and-privacy-design/netdata-cloud-security.md +++ b/docs/security-and-privacy-design/netdata-cloud-security.md @@ -44,7 +44,7 @@ Netdata Cloud does not store user credentials. Netdata Cloud offers a variety of security features, including infrastructure-level dashboards, centralized alerts notifications, auditing logs, and role-based access to different segments of the infrastructure. The cloud service employs several protection mechanisms against DDoS attacks, such as rate-limiting and automated blacklisting. It also -uses static code analysers to prevent other types of attacks. +uses static code analyzers to prevent other types of attacks. In the event of potential security vulnerabilities or incidents, Netdata Cloud follows the same process as the Netdata agent. Every report is acknowledged and analyzed by the Netdata team within three working days, and the team keeps the diff --git a/docs/top-monitoring-netdata-functions.md b/docs/top-monitoring-netdata-functions.md index ee76d40f..a9caea78 100644 --- a/docs/top-monitoring-netdata-functions.md +++ b/docs/top-monitoring-netdata-functions.md @@ -7,7 +7,7 @@ executed on the node/host where the function is made available. Collectors besides the metric collection, storing, and/or streaming work are capable of executing specific routines on request. These routines will bring additional information to help you troubleshoot or even trigger some action to happen on the node itself. -For more details please check out documentation on how we use our internal collector to get this from the first collector that exposes functions - [plugins.d](/src/collectors/plugins.d/README.md#function). +For more details please check out documentation on how we use our internal collector to get this from the first collector that exposes functions - [plugins.d](/src/plugins.d/README.md#function). ## Prerequisites |