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diff --git a/docs/configure/common-changes.md b/docs/configure/common-changes.md index 93b12d22..e1dccfce 100644 --- a/docs/configure/common-changes.md +++ b/docs/configure/common-changes.md @@ -1,7 +1,11 @@ <!-- title: "Common configuration changes" description: "See the most popular configuration changes to make to the Netdata Agent, including longer metrics retention, reduce sampling, and more." -custom_edit_url: https://github.com/netdata/netdata/edit/master/docs/configure/common-changes.md +custom_edit_url: "https://github.com/netdata/netdata/edit/master/docs/configure/common-changes.md" +sidebar_label: "Common configuration changes" +learn_status: "Published" +learn_topic_type: "Tasks" +learn_rel_path: "Setup" --> # Common configuration changes @@ -10,19 +14,24 @@ The Netdata Agent requires no configuration upon installation to collect thousan systems, containers, and applications, but there are hundreds of settings to tweak if you want to exercise more control over your monitoring platform. -This document assumes familiarity with using [`edit-config`](/docs/configure/nodes.md) from the Netdata config +This document assumes familiarity with +using [`edit-config`](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md) from the Netdata config directory. ## Change dashboards and visualizations -The Netdata Agent's [local dashboard](/web/gui/README.md), accessible at `http://NODE:19999` is highly configurable. If -you use Netdata Cloud for [infrastructure monitoring](/docs/quickstart/infrastructure.md), you will see many of these +The Netdata Agent's [local dashboard](https://github.com/netdata/netdata/blob/master/web/gui/README.md), accessible +at `http://NODE:19999` is highly configurable. If +you use Netdata Cloud +for [infrastructure monitoring](https://github.com/netdata/netdata/blob/master/docs/quickstart/infrastructure.md), you +will see many of these changes reflected in those visualizations due to the way Netdata Cloud proxies metric data and metadata to your browser. ### Increase the long-term metrics retention period -Increase the values for the `page cache size` and `dbengine multihost disk space` settings in the [`[global]` -section](/daemon/config/README.md#global-section-options) of `netdata.conf`. +Increase the values for the `page cache size` and `dbengine multihost disk space` settings in +the [`[global]`section](https://github.com/netdata/netdata/blob/master/daemon/config/README.md#global-section-options) +of `netdata.conf`. ```conf [global] @@ -30,13 +39,17 @@ section](/daemon/config/README.md#global-section-options) of `netdata.conf`. dbengine multihost disk space = 4096 # 4GiB of disk space for metrics storage ``` -Read our doc on [increasing long-term metrics storage](/docs/store/change-metrics-storage.md) for details, including a -[calculator](/docs/store/change-metrics-storage.md#calculate-the-system-resources-ram-disk-space-needed-to-store-metrics) +Read our doc +on [increasing long-term metrics storage](https://github.com/netdata/netdata/blob/master/docs/store/change-metrics-storage.md) +for details, including a +[calculator](https://github.com/netdata/netdata/blob/master/docs/store/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. ### Reduce the data collection frequency -Change `update every` in the [`[global]` section](/daemon/config/README.md#global-section-options) of `netdata.conf` so +Change `update every` in +the [`[global]` section](https://github.com/netdata/netdata/blob/master/daemon/config/README.md#global-section-options) +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. @@ -47,12 +60,15 @@ of 5 seconds. Every collector and plugin has its own `update every` setting, which you can also change in the `go.d.conf`, `python.d.conf` or `charts.d.conf` files, or in individual collector configuration files. If the `update -every` for an individual collector is less than the global, the Netdata Agent uses the global setting. See the [enable -or configure a collector](/docs/collect/enable-configure.md) doc for details. +every` for an individual collector is less than the global, the Netdata Agent uses the global setting. See +the [enable or configure a collector](https://github.com/netdata/netdata/blob/master/docs/collect/enable-configure.md) +doc for details. ### Disable a collector or plugin -Turn off entire plugins in the [`[plugins]` section](/daemon/config/README.md#plugins-section-options) of +Turn off entire plugins in +the [`[plugins]` section](https://github.com/netdata/netdata/blob/master/daemon/config/README.md#plugins-section-options) +of `netdata.conf`. To disable specific collectors, open `go.d.conf`, `python.d.conf` or `charts.d.conf` and find the line @@ -77,17 +93,20 @@ sudo ./edit-config health.d/example-alarm.conf Or, append your new alarm to an existing file by editing a relevant existing file in the `health.d/` directory. -Read more about [configuring alarms](/docs/monitor/configure-alarms.md) to get started, and see the [health monitoring -reference](/health/REFERENCE.md) for a full listing of options available in health entities. +Read more about [configuring alarms](https://github.com/netdata/netdata/blob/master/docs/monitor/configure-alarms.md) to +get started, and see +the [health monitoring reference](https://github.com/netdata/netdata/blob/master/health/REFERENCE.md) for a full listing +of options available in health entities. ### Configure a specific alarm Tweak existing alarms by editing files in the `health.d/` directory. For example, edit `health.d/cpu.conf` to change how the Agent responds to anomalies related to CPU utilization. -To see which configuration file you need to edit to configure a specific alarm, [view your active -alarms](/docs/monitor/view-active-alarms.md) in Netdata Cloud or the local Agent dashboard and look for the **source** -line. For example, it might read `source 4@/usr/lib/netdata/conf.d/health.d/cpu.conf`. +To see which configuration file you need to edit to configure a specific +alarm, [view your active alarms](https://github.com/netdata/netdata/blob/master/docs/monitor/view-active-alarms.md) in +Netdata Cloud or the local Agent dashboard and look for the **source** line. For example, it might +read `source 4@/usr/lib/netdata/conf.d/health.d/cpu.conf`. Because the source path contains `health.d/cpu.conf`, run `sudo edit-config health.d/cpu.conf` to configure that alarm. @@ -106,13 +125,16 @@ template: disk_fill_rate ### Turn of all alarms and notifications -Set `enabled` to `no` in the [`[health]` section](/daemon/config/README.md#health-section-options) section of +Set `enabled` to `no` in +the [`[health]` section](https://github.com/netdata/netdata/blob/master/daemon/config/README.md#health-section-options) +section of `netdata.conf`. ### Enable alarm notifications Open `health_alarm_notify.conf` for editing. First, read the [enabling -notifications](/docs/monitor/enable-notifications.md#netdata-agent) doc for an example of the process using Slack, then +notifications](https://github.com/netdata/netdata/blob/master/docs/monitor/enable-notifications.md#netdata-agent) 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. ## Improve node security @@ -120,14 +142,17 @@ click on the link to your preferred notification method to find documentation fo While the Netdata Agent is both [open and secure by design](https://www.netdata.cloud/blog/netdata-agent-dashboard/), we recommend every user take some action to administer and secure their nodes. -Learn more about a few of the following changes in the [node security doc](/docs/configure/secure-nodes.md). +Learn more about a few of the following changes in +the [node security doc](https://github.com/netdata/netdata/blob/master/docs/configure/secure-nodes.md). ### Disable the local Agent dashboard (`http://NODE:19999`) If you use Netdata Cloud to visualize metrics, stream metrics to a parent node, or otherwise don't need the local Agent dashboard, disabling it reduces the Agent's resource utilization and improves security. -Change the `mode` setting to `none` in the [`[web]` section](/web/server/README.md#configuration) of `netdata.conf`. +Change the `mode` setting to `none` in +the [`[web]` section](https://github.com/netdata/netdata/blob/master/web/server/README.md#configuration) +of `netdata.conf`. ```conf [web] @@ -136,11 +161,12 @@ Change the `mode` setting to `none` in the [`[web]` section](/web/server/README. ### Use access lists to restrict access to specific assets -Allow access from only specific IP addresses, ranges of IP addresses, or hostnames using [access -lists](/web/server/README.md#access-lists) and [simple patterns](/libnetdata/simple_pattern/README.md). +Allow access from only specific IP addresses, ranges of IP addresses, or hostnames +using [access lists](https://github.com/netdata/netdata/blob/master/web/server/README.md#access-lists) +and [simple patterns](https://github.com/netdata/netdata/blob/master/libnetdata/simple_pattern/README.md). See a quickstart to access lists in the [node security -doc](/docs/configure/secure-nodes.md#restrict-access-to-the-local-dashboard). +doc](https://github.com/netdata/netdata/blob/master/docs/configure/secure-nodes.md#restrict-access-to-the-local-dashboard). ### Stop sending anonymous statistics to Google Analytics @@ -151,7 +177,8 @@ the statistics script. sudo touch .opt-out-from-anonymous-statistics ``` -Learn more about [why we collect anonymous statistics](/docs/anonymous-statistics.md). +Learn more +about [why we collect anonymous statistics](https://github.com/netdata/netdata/blob/master/docs/anonymous-statistics.md). ### Change the IP address/port Netdata listens to @@ -162,26 +189,30 @@ Change the `default port` setting in the `[web]` section to a port other than `1 default port = 39999 ``` -Use the `bind to` setting to the ports other assets, such as the [running `netdata.conf` -configuration](/docs/configure/nodes.md#see-an-agents-running-configuration), API, or streaming requests listen to. +Use the `bind to` setting to the ports other assets, such as +the [running `netdata.conf` configuration](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#see-an-agents-running-configuration), +API, or streaming requests listen to. ## Reduce resource usage -Read our [performance optimization guide](/docs/guides/configure/performance.md) for a long list of specific changes +Read +our [performance optimization guide](https://github.com/netdata/netdata/blob/master/docs/guides/configure/performance.md) +for a long list of specific changes that can reduce the Netdata Agent's CPU/memory footprint and IO requirements. ## Organize nodes with host labels Beginning with v1.20, Netdata accepts user-defined **host labels**. These labels are sent during streaming, exporting, and as metadata to Netdata Cloud, and help you organize the metrics coming from complex infrastructure. Host labels are -defined in the section `[host labels]`. +defined in the section `[host labels]`. -For a quick introduction, read the [host label guide](/docs/guides/using-host-labels.md). +For a quick introduction, read +the [host label guide](https://github.com/netdata/netdata/blob/master/docs/guides/using-host-labels.md). -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 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 (`'`), double quotes (`"`), or asterisks (`*`), because they are used to compare label values in health alarms and @@ -189,26 +220,33 @@ templates. ## What's next? -If you haven't already, learn how to [secure your nodes](/docs/configure/secure-nodes.md). +If you haven't already, learn how +to [secure your nodes](https://github.com/netdata/netdata/blob/master/docs/configure/secure-nodes.md). -As mentioned at the top, there are plenty of other +As mentioned at the top, there are plenty of other You can also take what you've learned about node configuration to tweak the Agent's behavior or enable new features: -- [Enable new collectors](/docs/collect/enable-configure.md) or tweak their behavior. -- [Configure existing health alarms](/docs/monitor/configure-alarms.md) or create new ones. -- [Enable notifications](/docs/monitor/enable-notifications.md) to receive updates about the health of your +- [Enable new collectors](https://github.com/netdata/netdata/blob/master/docs/collect/enable-configure.md) or tweak + their behavior. +- [Configure existing health alarms](https://github.com/netdata/netdata/blob/master/docs/monitor/configure-alarms.md) or + create new ones. +- [Enable notifications](https://github.com/netdata/netdata/blob/master/docs/monitor/enable-notifications.md) to receive + updates about the health of your infrastructure. -- Change [the long-term metrics retention period](/docs/store/change-metrics-storage.md) using the database engine. +- + +Change [the long-term metrics retention period](https://github.com/netdata/netdata/blob/master/docs/store/change-metrics-storage.md) +using the database engine. ### Related reference documentation -- [Netdata Agent · Daemon](/health/README.md) -- [Netdata Agent · Daemon configuration](/daemon/config/README.md) -- [Netdata Agent · Web server](/web/server/README.md) -- [Netdata Agent · Local Agent dashboard](/web/gui/README.md) -- [Netdata Agent · Health monitoring](/health/REFERENCE.md) -- [Netdata Agent · Notifications](/health/notifications/README.md) -- [Netdata Agent · Simple patterns](/libnetdata/simple_pattern/README.md) +- [Netdata Agent · Daemon](https://github.com/netdata/netdata/blob/master/health/README.md) +- [Netdata Agent · Daemon configuration](https://github.com/netdata/netdata/blob/master/daemon/config/README.md) +- [Netdata Agent · Web server](https://github.com/netdata/netdata/blob/master/web/server/README.md) +- [Netdata Agent · Local Agent dashboard](https://github.com/netdata/netdata/blob/master/web/gui/README.md) +- [Netdata Agent · Health monitoring](https://github.com/netdata/netdata/blob/master/health/REFERENCE.md) +- [Netdata Agent · Notifications](https://github.com/netdata/netdata/blob/master/health/notifications/README.md) +- [Netdata Agent · Simple patterns](https://github.com/netdata/netdata/blob/master/libnetdata/simple_pattern/README.md) [](<>) |