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authorDaniel Baumann <daniel.baumann@progress-linux.org>2019-09-03 10:23:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2019-09-03 10:23:48 +0000
commitcd7ed12292aef11d9062b64f61215174e8cc1860 (patch)
tree9998ab03d153956743d9319cf3a0279b9593ce36 /backends
parentReleasing debian version 1.16.1-6. (diff)
downloadnetdata-cd7ed12292aef11d9062b64f61215174e8cc1860.tar.xz
netdata-cd7ed12292aef11d9062b64f61215174e8cc1860.zip
Merging upstream version 1.17.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'backends')
-rw-r--r--backends/Makefile.am1
-rw-r--r--backends/Makefile.in710
-rw-r--r--backends/README.md230
-rw-r--r--backends/WALKTHROUGH.md90
-rw-r--r--backends/aws_kinesis/Makefile.in571
-rw-r--r--backends/aws_kinesis/README.md15
-rw-r--r--backends/aws_kinesis/aws_kinesis.c15
-rw-r--r--backends/backends.c185
-rw-r--r--backends/backends.h35
-rw-r--r--backends/graphite/Makefile.in507
-rw-r--r--backends/json/Makefile.in507
-rw-r--r--backends/mongodb/Makefile.am12
-rw-r--r--backends/mongodb/Makefile.in571
-rw-r--r--backends/mongodb/README.md32
-rw-r--r--backends/mongodb/mongodb.c189
-rw-r--r--backends/mongodb/mongodb.conf12
-rw-r--r--backends/mongodb/mongodb.h16
-rw-r--r--backends/opentsdb/Makefile.in507
-rw-r--r--backends/opentsdb/README.md25
-rw-r--r--backends/prometheus/Makefile.in698
-rw-r--r--backends/prometheus/README.md134
-rw-r--r--backends/prometheus/remote_write/Makefile.in521
-rw-r--r--backends/prometheus/remote_write/README.md4
23 files changed, 5281 insertions, 306 deletions
diff --git a/backends/Makefile.am b/backends/Makefile.am
index 278f057a..ea0d77e0 100644
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -9,6 +9,7 @@ SUBDIRS = \
opentsdb \
prometheus \
aws_kinesis \
+ mongodb \
$(NULL)
dist_noinst_DATA = \
diff --git a/backends/Makefile.in b/backends/Makefile.in
new file mode 100644
index 00000000..3bab1510
--- /dev/null
+++ b/backends/Makefile.in
@@ -0,0 +1,710 @@
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diff --git a/backends/README.md b/backends/README.md
index ef5baa1b..f93e60f5 100644
--- a/backends/README.md
+++ b/backends/README.md
@@ -1,88 +1,92 @@
# Metrics long term archiving
-netdata supports backends for archiving the metrics, or providing long term dashboards,
+Netdata supports backends for archiving the metrics, or providing long term dashboards,
using Grafana or other tools, like this:
![image](https://cloud.githubusercontent.com/assets/2662304/20649711/29f182ba-b4ce-11e6-97c8-ab2c0ab59833.png)
-Since netdata collects thousands of metrics per server per second, which would easily congest any backend
-server when several netdata servers are sending data to it, netdata allows sending metrics at a lower
+Since Netdata collects thousands of metrics per server per second, which would easily congest any backend
+server when several Netdata servers are sending data to it, Netdata allows sending metrics at a lower
frequency, by resampling them.
-So, although netdata collects metrics every second, it can send to the backend servers averages or sums every
+So, although Netdata collects metrics every second, it can send to the backend servers averages or sums every
X seconds (though, it can send them per second if you need it to).
## features
-1. Supported backends
+1. Supported backends
- - **graphite** (`plaintext interface`, used by **Graphite**, **InfluxDB**, **KairosDB**,
- **Blueflood**, **ElasticSearch** via logstash tcp input and the graphite codec, etc)
+ - **graphite** (`plaintext interface`, used by **Graphite**, **InfluxDB**, **KairosDB**,
+ **Blueflood**, **ElasticSearch** via logstash tcp input and the graphite codec, etc)
- metrics are sent to the backend server as `prefix.hostname.chart.dimension`. `prefix` is
- configured below, `hostname` is the hostname of the machine (can also be configured).
+ metrics are sent to the backend server as `prefix.hostname.chart.dimension`. `prefix` is
+ configured below, `hostname` is the hostname of the machine (can also be configured).
- - **opentsdb** (`telnet or HTTP interfaces`, used by **OpenTSDB**, **InfluxDB**, **KairosDB**, etc)
+ - **opentsdb** (`telnet or HTTP interfaces`, used by **OpenTSDB**, **InfluxDB**, **KairosDB**, etc)
- metrics are sent to opentsdb as `prefix.chart.dimension` with tag `host=hostname`.
+ metrics are sent to opentsdb as `prefix.chart.dimension` with tag `host=hostname`.
- - **json** document DBs
+ - **json** document DBs
- metrics are sent to a document db, `JSON` formatted.
+ metrics are sent to a document db, `JSON` formatted.
- - **prometheus** is described at [prometheus page](prometheus/) since it pulls data from netdata.
+ - **prometheus** is described at [prometheus page](prometheus/) since it pulls data from Netdata.
- - **prometheus remote write** (a binary snappy-compressed protocol buffer encoding over HTTP used by
- **Elasticsearch**, **Gnocchi**, **Graphite**, **InfluxDB**, **Kafka**, **OpenTSDB**,
- **PostgreSQL/TimescaleDB**, **Splunk**, **VictoriaMetrics**,
- and a lot of other [storage providers](https://prometheus.io/docs/operating/integrations/#remote-endpoints-and-storage))
+ - **prometheus remote write** (a binary snappy-compressed protocol buffer encoding over HTTP used by
+ **Elasticsearch**, **Gnocchi**, **Graphite**, **InfluxDB**, **Kafka**, **OpenTSDB**,
+ **PostgreSQL/TimescaleDB**, **Splunk**, **VictoriaMetrics**,
+ and a lot of other [storage providers](https://prometheus.io/docs/operating/integrations/#remote-endpoints-and-storage))
- metrics are labeled in the format, which is used by Netdata for the [plaintext prometheus protocol](prometheus/).
- Notes on using the remote write backend are [here](prometheus/remote_write/).
+ metrics are labeled in the format, which is used by Netdata for the [plaintext prometheus protocol](prometheus/).
+ Notes on using the remote write backend are [here](prometheus/remote_write/).
- - **AWS Kinesis Data Streams**
+ - **AWS Kinesis Data Streams**
- metrics are sent to the service in `JSON` format.
+ metrics are sent to the service in `JSON` format.
-2. Only one backend may be active at a time.
+ - **MongoDB**
-3. Netdata can filter metrics (at the chart level), to send only a subset of the collected metrics.
+ metrics are sent to the database in `JSON` format.
-4. Netdata supports three modes of operation for all backends:
+2. Only one backend may be active at a time.
- - `as-collected` sends to backends the metrics as they are collected, in the units they are collected.
- So, counters are sent as counters and gauges are sent as gauges, much like all data collectors do.
- For example, to calculate CPU utilization in this format, you need to know how to convert kernel ticks to percentage.
+3. Netdata can filter metrics (at the chart level), to send only a subset of the collected metrics.
- - `average` sends to backends normalized metrics from the netdata database.
- In this mode, all metrics are sent as gauges, in the units netdata uses. This abstracts data collection
- and simplifies visualization, but you will not be able to copy and paste queries from other sources to convert units.
- For example, CPU utilization percentage is calculated by netdata, so netdata will convert ticks to percentage and
- send the average percentage to the backend.
+4. Netdata supports three modes of operation for all backends:
- - `sum` or `volume`: the sum of the interpolated values shown on the netdata graphs is sent to the backend.
- So, if netdata is configured to send data to the backend every 10 seconds, the sum of the 10 values shown on the
- netdata charts will be used.
+ - `as-collected` sends to backends the metrics as they are collected, in the units they are collected.
+ So, counters are sent as counters and gauges are sent as gauges, much like all data collectors do.
+ For example, to calculate CPU utilization in this format, you need to know how to convert kernel ticks to percentage.
+
+ - `average` sends to backends normalized metrics from the Netdata database.
+ In this mode, all metrics are sent as gauges, in the units Netdata uses. This abstracts data collection
+ and simplifies visualization, but you will not be able to copy and paste queries from other sources to convert units.
+ For example, CPU utilization percentage is calculated by Netdata, so Netdata will convert ticks to percentage and
+ send the average percentage to the backend.
+
+ - `sum` or `volume`: the sum of the interpolated values shown on the Netdata graphs is sent to the backend.
+ So, if Netdata is configured to send data to the backend every 10 seconds, the sum of the 10 values shown on the
+ Netdata charts will be used.
Time-series databases suggest to collect the raw values (`as-collected`). If you plan to invest on building your monitoring around a time-series database and you already know (or you will invest in learning) how to convert units and normalize the metrics in Grafana or other visualization tools, we suggest to use `as-collected`.
-If, on the other hand, you just need long term archiving of netdata metrics and you plan to mainly work with netdata, we suggest to use `average`. It decouples visualization from data collection, so it will generally be a lot simpler. Furthermore, if you use `average`, the charts shown in the back-end will match exactly what you see in Netdata, which is not necessarily true for the other modes of operation.
+If, on the other hand, you just need long term archiving of Netdata metrics and you plan to mainly work with Netdata, we suggest to use `average`. It decouples visualization from data collection, so it will generally be a lot simpler. Furthermore, if you use `average`, the charts shown in the back-end will match exactly what you see in Netdata, which is not necessarily true for the other modes of operation.
-5. This code is smart enough, not to slow down netdata, independently of the speed of the backend server.
+5. This code is smart enough, not to slow down Netdata, independently of the speed of the backend server.
## configuration
In `/etc/netdata/netdata.conf` you should have something like this (if not download the latest version
-of `netdata.conf` from your netdata):
+of `netdata.conf` from your Netdata):
```
[backend]
enabled = yes | no
- type = graphite | opentsdb:telnet | opentsdb:http | opentsdb:https | prometheus_remote_write | json | kinesis
+ type = graphite | opentsdb:telnet | opentsdb:http | opentsdb:https | prometheus_remote_write | json | kinesis | mongodb
host tags = list of TAG=VALUE
destination = space separated list of [PROTOCOL:]HOST[:PORT] - the first working will be used, or a region for kinesis
data source = average | sum | as collected
- prefix = netdata
+ prefix = Netdata
hostname = my-name
update every = 10
buffer on failures = 10
@@ -92,25 +96,25 @@ of `netdata.conf` from your netdata):
send names instead of ids = yes
```
-- `enabled = yes | no`, enables or disables sending data to a backend
+- `enabled = yes | no`, enables or disables sending data to a backend
-- `type = graphite | opentsdb:telnet | opentsdb:http | opentsdb:https | json | kinesis`, selects the backend type
+- `type = graphite | opentsdb:telnet | opentsdb:http | opentsdb:https | json | kinesis | mongodb`, selects the backend type
-- `destination = host1 host2 host3 ...`, accepts **a space separated list** of hostnames,
- IPs (IPv4 and IPv6) and ports to connect to.
- Netdata will use the **first available** to send the metrics.
+- `destination = host1 host2 host3 ...`, accepts **a space separated list** of hostnames,
+ IPs (IPv4 and IPv6) and ports to connect to.
+ Netdata will use the **first available** to send the metrics.
- The format of each item in this list, is: `[PROTOCOL:]IP[:PORT]`.
+ The format of each item in this list, is: `[PROTOCOL:]IP[:PORT]`.
- `PROTOCOL` can be `udp` or `tcp`. `tcp` is the default and only supported by the current backends.
+ `PROTOCOL` can be `udp` or `tcp`. `tcp` is the default and only supported by the current backends.
- `IP` can be `XX.XX.XX.XX` (IPv4), or `[XX:XX...XX:XX]` (IPv6).
- For IPv6 you can to enclose the IP in `[]` to separate it from the port.
+ `IP` can be `XX.XX.XX.XX` (IPv4), or `[XX:XX...XX:XX]` (IPv6).
+ For IPv6 you can to enclose the IP in `[]` to separate it from the port.
- `PORT` can be a number of a service name. If omitted, the default port for the backend will be used
- (graphite = 2003, opentsdb = 4242).
+ `PORT` can be a number of a service name. If omitted, the default port for the backend will be used
+ (graphite = 2003, opentsdb = 4242).
- Example IPv4:
+ Example IPv4:
```
destination = 10.11.14.2:4242 10.11.14.3:4242 10.11.14.4:4242
@@ -122,81 +126,84 @@ of `netdata.conf` from your netdata):
destination = [ffff:...:0001]:2003 10.11.12.1:2003
```
- When multiple servers are defined, netdata will try the next one when the first one fails. This allows
- you to load-balance different servers: give your backend servers in different order on each netdata.
+ When multiple servers are defined, Netdata will try the next one when the first one fails. This allows
+ you to load-balance different servers: give your backend servers in different order on each Netdata.
- netdata also ships [`nc-backend.sh`](nc-backend.sh),
+ Netdata also ships [`nc-backend.sh`](nc-backend.sh),
a script that can be used as a fallback backend to save the metrics to disk and push them to the
time-series database when it becomes available again. It can also be used to monitor / trace / debug
- the metrics netdata generates.
+ the metrics Netdata generates.
For kinesis backend `destination` should be set to an AWS region (for example, `us-east-1`).
-- `data source = as collected`, or `data source = average`, or `data source = sum`, selects the kind of
- data that will be sent to the backend.
+ The MongoDB backend doesn't use the `destination` option for its configuration. It uses the `mongodb.conf`
+ [configuration file](mongodb/README.md) instead.
-- `hostname = my-name`, is the hostname to be used for sending data to the backend server. By default
- this is `[global].hostname`.
+- `data source = as collected`, or `data source = average`, or `data source = sum`, selects the kind of
+ data that will be sent to the backend.
-- `prefix = netdata`, is the prefix to add to all metrics.
+- `hostname = my-name`, is the hostname to be used for sending data to the backend server. By default
+ this is `[global].hostname`.
-- `update every = 10`, is the number of seconds between sending data to the backend. netdata will add
- some randomness to this number, to prevent stressing the backend server when many netdata servers send
- data to the same backend. This randomness does not affect the quality of the data, only the time they
- are sent.
+- `prefix = Netdata`, is the prefix to add to all metrics.
-- `buffer on failures = 10`, is the number of iterations (each iteration is `[backend].update every` seconds)
- to buffer data, when the backend is not available. If the backend fails to receive the data after that
- many failures, data loss on the backend is expected (netdata will also log it).
+- `update every = 10`, is the number of seconds between sending data to the backend. Netdata will add
+ some randomness to this number, to prevent stressing the backend server when many Netdata servers send
+ data to the same backend. This randomness does not affect the quality of the data, only the time they
+ are sent.
-- `timeout ms = 20000`, is the timeout in milliseconds to wait for the backend server to process the data.
- By default this is `2 * update_every * 1000`.
+- `buffer on failures = 10`, is the number of iterations (each iteration is `[backend].update every` seconds)
+ to buffer data, when the backend is not available. If the backend fails to receive the data after that
+ many failures, data loss on the backend is expected (Netdata will also log it).
-- `send hosts matching = localhost *` includes one or more space separated patterns, using ` * ` as wildcard
- (any number of times within each pattern). The patterns are checked against the hostname (the localhost
- is always checked as `localhost`), allowing us to filter which hosts will be sent to the backend when
- this netdata is a central netdata aggregating multiple hosts. A pattern starting with ` ! ` gives a
- negative match. So to match all hosts named `*db*` except hosts containing `*slave*`, use
- `!*slave* *db*` (so, the order is important: the first pattern matching the hostname will be used - positive
- or negative).
+- `timeout ms = 20000`, is the timeout in milliseconds to wait for the backend server to process the data.
+ By default this is `2 * update_every * 1000`.
-- `send charts matching = *` includes one or more space separated patterns, using ` * ` as wildcard (any
- number of times within each pattern). The patterns are checked against both chart id and chart name.
- A pattern starting with ` ! ` gives a negative match. So to match all charts named `apps.*`
- except charts ending in `*reads`, use `!*reads apps.*` (so, the order is important: the first pattern
- matching the chart id or the chart name will be used - positive or negative).
+- `send hosts matching = localhost *` includes one or more space separated patterns, using `*` as wildcard
+ (any number of times within each pattern). The patterns are checked against the hostname (the localhost
+ is always checked as `localhost`), allowing us to filter which hosts will be sent to the backend when
+ this Netdata is a central Netdata aggregating multiple hosts. A pattern starting with `!` gives a
+ negative match. So to match all hosts named `*db*` except hosts containing `*slave*`, use
+ `!*slave* *db*` (so, the order is important: the first pattern matching the hostname will be used - positive
+ or negative).
-- `send names instead of ids = yes | no` controls the metric names netdata should send to backend.
- netdata supports names and IDs for charts and dimensions. Usually IDs are unique identifiers as read
- by the system and names are human friendly labels (also unique). Most charts and metrics have the same
- ID and name, but in several cases they are different: disks with device-mapper, interrupts, QoS classes,
- statsd synthetic charts, etc.
+- `send charts matching = *` includes one or more space separated patterns, using `*` as wildcard (any
+ number of times within each pattern). The patterns are checked against both chart id and chart name.
+ A pattern starting with `!` gives a negative match. So to match all charts named `apps.*`
+ except charts ending in `*reads`, use `!*reads apps.*` (so, the order is important: the first pattern
+ matching the chart id or the chart name will be used - positive or negative).
-- `host tags = list of TAG=VALUE` defines tags that should be appended on all metrics for the given host.
- These are currently only sent to opentsdb and prometheus. Please use the appropriate format for each
- time-series db. For example opentsdb likes them like `TAG1=VALUE1 TAG2=VALUE2`, but prometheus like
- `tag1="value1",tag2="value2"`. Host tags are mirrored with database replication (streaming of metrics
- between netdata servers).
+- `send names instead of ids = yes | no` controls the metric names Netdata should send to backend.
+ Netdata supports names and IDs for charts and dimensions. Usually IDs are unique identifiers as read
+ by the system and names are human friendly labels (also unique). Most charts and metrics have the same
+ ID and name, but in several cases they are different: disks with device-mapper, interrupts, QoS classes,
+ statsd synthetic charts, etc.
+
+- `host tags = list of TAG=VALUE` defines tags that should be appended on all metrics for the given host.
+ These are currently only sent to opentsdb and prometheus. Please use the appropriate format for each
+ time-series db. For example opentsdb likes them like `TAG1=VALUE1 TAG2=VALUE2`, but prometheus like
+ `tag1="value1",tag2="value2"`. Host tags are mirrored with database replication (streaming of metrics
+ between Netdata servers).
## monitoring operation
-netdata provides 5 charts:
+Netdata provides 5 charts:
-1. **Buffered metrics**, the number of metrics netdata added to the buffer for dispatching them to the
- backend server.
+1. **Buffered metrics**, the number of metrics Netdata added to the buffer for dispatching them to the
+ backend server.
-2. **Buffered data size**, the amount of data (in KB) netdata added the buffer.
+2. **Buffered data size**, the amount of data (in KB) Netdata added the buffer.
-3. ~~**Backend latency**, the time the backend server needed to process the data netdata sent.
- If there was a re-connection involved, this includes the connection time.~~
- (this chart has been removed, because it only measures the time netdata needs to give the data
- to the O/S - since the backend servers do not ack the reception, netdata does not have any means
- to measure this properly).
+3. ~~**Backend latency**, the time the backend server needed to process the data Netdata sent.
+ If there was a re-connection involved, this includes the connection time.~~
+ (this chart has been removed, because it only measures the time Netdata needs to give the data
+ to the O/S - since the backend servers do not ack the reception, Netdata does not have any means
+ to measure this properly).
-4. **Backend operations**, the number of operations performed by netdata.
+4. **Backend operations**, the number of operations performed by Netdata.
-5. **Backend thread CPU usage**, the CPU resources consumed by the netdata thread, that is responsible
- for sending the metrics to the backend server.
+5. **Backend thread CPU usage**, the CPU resources consumed by the Netdata thread, that is responsible
+ for sending the metrics to the backend server.
![image](https://cloud.githubusercontent.com/assets/2662304/20463536/eb196084-af3d-11e6-8ee5-ddbd3b4d8449.png)
@@ -204,14 +211,13 @@ netdata provides 5 charts:
The latest version of the alarms configuration for monitoring the backend is [here](../health/health.d/backend.conf)
-netdata adds 4 alarms:
+Netdata adds 4 alarms:
-1. `backend_last_buffering`, number of seconds since the last successful buffering of backend data
-2. `backend_metrics_sent`, percentage of metrics sent to the backend server
-3. `backend_metrics_lost`, number of metrics lost due to repeating failures to contact the backend server
-4. ~~`backend_slow`, the percentage of time between iterations needed by the backend time to process the data sent by netdata~~ (this was misleading and has been removed).
+1. `backend_last_buffering`, number of seconds since the last successful buffering of backend data
+2. `backend_metrics_sent`, percentage of metrics sent to the backend server
+3. `backend_metrics_lost`, number of metrics lost due to repeating failures to contact the backend server
+4. ~~`backend_slow`, the percentage of time between iterations needed by the backend time to process the data sent by Netdata~~ (this was misleading and has been removed).
![image](https://cloud.githubusercontent.com/assets/2662304/20463779/a46ed1c2-af43-11e6-91a5-07ca4533cac3.png)
-
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/backends/WALKTHROUGH.md b/backends/WALKTHROUGH.md
index d3666ef5..19f4ac0e 100644
--- a/backends/WALKTHROUGH.md
+++ b/backends/WALKTHROUGH.md
@@ -1,6 +1,7 @@
# Netdata, Prometheus, Grafana stack
## Intro
+
In this article I will walk you through the basics of getting Netdata,
Prometheus and Grafana all working together and monitoring your application
servers. This article will be using docker on your local workstation. We will be
@@ -11,6 +12,7 @@ without cloud accounts or access to VMs can try this out and for it’s speed of
deployment.
## Why Netdata, Prometheus, and Grafana
+
Some time ago I was introduced to Netdata by a coworker. We were attempting to
troubleshoot python code which seemed to be bottlenecked. I was instantly
impressed by the amount of metrics Netdata exposes to you. I quickly added
@@ -40,21 +42,22 @@ together to create a modern monitoring stack. This stack will offer you
visibility into your application and systems performance.
## Getting Started - Netdata
+
To begin let’s create our container which we will install Netdata on. We need
-to run a container, forward the necessary port that netdata listens on, and
+to run a container, forward the necessary port that Netdata listens on, and
attach a tty so we can interact with the bash shell on the container. But
before we do this we want name resolution between the two containers to work.
In order to accomplish this we will create a user-defined network and attach
both containers to this network. The first command we should run is:
-```
+```sh
docker network create --driver bridge netdata-tutorial
```
With this user-defined network created we can now launch our container we will
install Netdata on and point it to this network.
-```
+```sh
docker run -it --name netdata --hostname netdata --network=netdata-tutorial -p 19999:19999 centos:latest '/bin/bash'
```
@@ -68,23 +71,23 @@ be sitting inside the shell of the container.
After we have entered the shell we can install Netdata. This process could not
be easier. If you take a look at [this link](../packaging/installer/#installation), the Netdata devs give us
-several one-liners to install netdata. I have not had any issues with these one
+several one-liners to install Netdata. I have not had any issues with these one
liners and their bootstrapping scripts so far (If you guys run into anything do
share). Run the following command in your container.
-```
+```sh
bash <(curl -Ss https://my-netdata.io/kickstart.sh) --dont-wait
```
After the install completes you should be able to hit the Netdata dashboard at
-http://localhost:19999/ (replace localhost if you’re doing this on a VM or have
+<http://localhost:19999/> (replace localhost if you’re doing this on a VM or have
the docker container hosted on a machine not on your local system). If this is
your first time using Netdata I suggest you take a look around. The amount of
time I’ve spent digging through /proc and calculating my own metrics has been
greatly reduced by this tool. Take it all in.
Next I want to draw your attention to a particular endpoint. Navigate to
-http://localhost:19999/api/v1/allmetrics?format=prometheus&help=yes In your
+<http://localhost:19999/api/v1/allmetrics?format=prometheus&help=yes> In your
browser. This is the endpoint which publishes all the metrics in a format which
Prometheus understands. Let’s take a look at one of these metrics.
`netdata_system_cpu_percentage_average{chart="system.cpu",family="cpu",dimension="system"}
@@ -97,53 +100,54 @@ Netdata dashboard.
![](https://github.com/ldelossa/NetdataTutorial/raw/master/Screen%20Shot%202017-07-28%20at%204.00.45%20PM.png)
This CHART is called ‘system.cpu’, The FAMILY is cpu, and the DIMENSION we are
-observing is “system”. You can begin to draw links between the charts in netdata
+observing is “system”. You can begin to draw links between the charts in Netdata
to the prometheus metrics format in this manner.
## Prometheus
+
We will be installing prometheus in a container for purpose of demonstration.
While prometheus does have an official container I would like to walk through
the install process and setup on a fresh container. This will allow anyone
reading to migrate this tutorial to a VM or Server of any sort.
Let’s start another container in the same fashion as we did the Netdata
-container. `docker run -it --name prometheus --hostname prometheus
---network=netdata-tutorial -p 9090:9090 centos:latest '/bin/bash'` This should
-drop you into a shell once again. Once there quickly install your favorite
-editor as we will be editing files later in this tutorial. `yum install vim -y`
+container.
+
+```sh
+docker run -it --name prometheus --hostname prometheus
+--network=netdata-tutorial -p 9090:9090 centos:latest '/bin/bash'
+```
-Prometheus provides a tarball of their latest stable versions here:
-https://prometheus.io/download/. Let’s download the latest version and install
-into your container.
+This should drop you into a shell once again. Once there quickly install your favorite editor as we will be editing files later in this tutorial.
+```sh
+yum install vim -y
```
-curl -L 'https://github.com/prometheus/prometheus/releases/download/v1.7.1/prometheus-1.7.1.linux-amd64.tar.gz' -o /tmp/prometheus.tar.gz
+
+Prometheus provides a tarball of their latest stable versions [here](https://prometheus.io/download/).
+
+Let’s download the latest version and install into your container.
+
+```sh
+cd /tmp && curl -s https://api.github.com/repos/prometheus/prometheus/releases/latest \
+| grep "browser_download_url.*linux-amd64.tar.gz" \
+| cut -d '"' -f 4 \
+| wget -qi -
mkdir /opt/prometheus
-tar -xf /tmp/prometheus.tar.gz -C /opt/prometheus/ --strip-components 1
+sudo tar -xvf /tmp/prometheus-*linux-amd64.tar.gz -C /opt/prometheus --strip=1
```
-This should get prometheus installed into the container. Let’s test that we can run
-prometheus and connect to it’s web interface. This will look similar to what
-follows:
+This should get prometheus installed into the container. Let’s test that we can run prometheus and connect to it’s web interface.
-```
-[root@prometheus prometheus]# /opt/prometheus/prometheus
-INFO[0000] Starting prometheus (version=1.7.1, branch=master, revision=3afb3fffa3a29c3de865e1172fb740442e9d0133)
- source="main.go:88"
-INFO[0000] Build context (go=go1.8.3, user=root@0aa1b7fc430d, date=20170612-11:44:05) source="main.go:89"
-INFO[0000] Host details (Linux 4.9.36-moby #1 SMP Wed Jul 12 15:29:07 UTC 2017 x86_64 prometheus (none)) source="main.go:90"
-INFO[0000] Loading configuration file prometheus.yml source="main.go:252"
-INFO[0000] Loading series map and head chunks... source="storage.go:428"
-INFO[0000] 0 series loaded. source="storage.go:439"
-INFO[0000] Starting target manager... source="targetmanager.go:63"
-INFO[0000] Listening on :9090 source="web.go:259"
+```sh
+/opt/prometheus/prometheus
```
-Now attempt to go to http://localhost:9090/. You should be presented with the
+Now attempt to go to <http://localhost:9090/>. You should be presented with the
prometheus homepage. This is a good point to talk about Prometheus’s data model
-which can be viewed here: https://prometheus.io/docs/concepts/data_model/ As
+which can be viewed here: <https://prometheus.io/docs/concepts/data_model/> As
explained we have two key elements in Prometheus metrics. We have the ‘metric’
and its ‘labels’. Labels allow for granularity between metrics. Let’s use our
previous example to further explain.
@@ -162,7 +166,7 @@ Let’s move our attention to Prometheus’s configuration. Prometheus gets it
config from the file located (in our example) at
`/opt/prometheus/prometheus.yml`. I won’t spend an extensive amount of time
going over the configuration values documented here:
-https://prometheus.io/docs/operating/configuration/. We will be adding a new
+<https://prometheus.io/docs/operating/configuration/>. We will be adding a new
“job” under the “scrape_configs”. Let’s make the “scrape_configs” section look
like this (we can use the dns name Netdata due to the custom user-defined
network we created in docker beforehand).
@@ -189,9 +193,11 @@ scrape_configs:
```
Let’s start prometheus once again by running `/opt/prometheus/prometheus`. If we
-now navigate to prometheus at ‘http://localhost:9090/targets’ we should see our
+
+now navigate to prometheus at ‘<http://localhost:9090/targets’> we should see our
+
target being successfully scraped. If we now go back to the Prometheus’s
-homepage and begin to type ‘netdata_’ Prometheus should auto complete metrics
+homepage and begin to type ‘netdata\_’ Prometheus should auto complete metrics
it is now scraping.
![](https://github.com/ldelossa/NetdataTutorial/raw/master/Screen%20Shot%202017-07-28%20at%205.13.43%20PM.png)
@@ -206,7 +212,7 @@ the following:
Our NetData cpu graph should be showing some activity. Let’s represent this in
Prometheus. In order to do this let’s keep our metrics page open for reference:
-http://localhost:19999/api/v1/allmetrics?format=prometheus&help=yes We are
+<http://localhost:19999/api/v1/allmetrics?format=prometheus&help=yes> We are
setting out to graph the data in the CPU chart so let’s search for “system.cpu”
in the metrics page above. We come across a section of metrics with the first
comments `# COMMENT homogeneous chart "system.cpu", context "system.cpu", family
@@ -247,9 +253,9 @@ this point to read [this page](../backends/prometheus/#using-netdata-with-promet
The key point here is that NetData can export metrics from its internal DB or
can send metrics “as-collected” by specifying the ‘source=as-collected’ url
parameter like so.
-http://localhost:19999/api/v1/allmetrics?format=prometheus&help=yes&types=yes&source=as-collected
+<http://localhost:19999/api/v1/allmetrics?format=prometheus&help=yes&types=yes&source=as-collected>
If you choose to use this method you will need to use Prometheus's set of
-functions here: https://prometheus.io/docs/querying/functions/ to obtain useful
+functions here: <https://prometheus.io/docs/querying/functions/> to obtain useful
metrics as you are now dealing with raw counters from the system. For example
you will have to use the `irate()` function over a counter to get that metric's
rate per second. If your graphing needs are met by using the metrics returned by
@@ -258,6 +264,7 @@ that. If you find limitations then consider re-writing your queries using the
raw data and using Prometheus functions to get the desired chart.
## Grafana
+
Finally we make it to grafana. This is the easiest part in my opinion. This time
we will actually run the official grafana docker container as all configuration
we need to do is done via the GUI. Let’s run the following command:
@@ -266,7 +273,8 @@ we need to do is done via the GUI. Let’s run the following command:
docker run -i -p 3000:3000 --network=netdata-tutorial grafana/grafana
```
-This will get grafana running at ‘http://localhost:3000/’ Let’s go there and
+This will get grafana running at ‘<http://localhost:3000/’> Let’s go there and
+
login using the credentials Admin:Admin.
The first thing we want to do is click ‘Add data source’. Let’s make it look
@@ -291,4 +299,4 @@ about the monitoring system until Prometheus cannot keep up with your scale.
Once this happens there are options presented in the Prometheus documentation
for solving this. Hope this was helpful, happy monitoring.
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2FWALKTHROUGH&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2FWALKTHROUGH&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/backends/aws_kinesis/Makefile.in b/backends/aws_kinesis/Makefile.in
new file mode 100644
index 00000000..e41b87ef
--- /dev/null
+++ b/backends/aws_kinesis/Makefile.in
@@ -0,0 +1,571 @@
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+# @configure_input@
+
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+
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+
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+varlibdir = @varlibdir@
+webdir = @webdir@
+AUTOMAKE_OPTIONS = subdir-objects
+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
+dist_noinst_DATA = \
+ README.md \
+ $(NULL)
+
+dist_libconfig_DATA = \
+ aws_kinesis.conf \
+ $(NULL)
+
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+ && { if test -f $@; then exit 0; else break; fi; }; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu backends/aws_kinesis/Makefile'; \
+ $(am__cd) $(top_srcdir) && \
+ $(AUTOMAKE) --gnu backends/aws_kinesis/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+ esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+install-dist_libconfigDATA: $(dist_libconfig_DATA)
+ @$(NORMAL_INSTALL)
+ @list='$(dist_libconfig_DATA)'; test -n "$(libconfigdir)" || list=; \
+ if test -n "$$list"; then \
+ echo " $(MKDIR_P) '$(DESTDIR)$(libconfigdir)'"; \
+ $(MKDIR_P) "$(DESTDIR)$(libconfigdir)" || exit 1; \
+ fi; \
+ for p in $$list; do \
+ if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+ echo "$$d$$p"; \
+ done | $(am__base_list) | \
+ while read files; do \
+ echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(libconfigdir)'"; \
+ $(INSTALL_DATA) $$files "$(DESTDIR)$(libconfigdir)" || exit $$?; \
+ done
+
+uninstall-dist_libconfigDATA:
+ @$(NORMAL_UNINSTALL)
+ @list='$(dist_libconfig_DATA)'; test -n "$(libconfigdir)" || list=; \
+ files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+ dir='$(DESTDIR)$(libconfigdir)'; $(am__uninstall_files_from_dir)
+tags TAGS:
+
+ctags CTAGS:
+
+cscope cscopelist:
+
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+ dist_files=`for file in $$list; do echo $$file; done | \
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+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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+ */*) $(MKDIR_P) `echo "$$dist_files" | \
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+ sort -u` ;; \
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+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
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+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
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+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
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+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
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+
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+
+distclean-generic:
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+
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+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
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+ uninstall-am uninstall-dist_libconfigDATA
+
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+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/backends/aws_kinesis/README.md b/backends/aws_kinesis/README.md
index 42497909..a6529f23 100644
--- a/backends/aws_kinesis/README.md
+++ b/backends/aws_kinesis/README.md
@@ -1,8 +1,8 @@
-# Using netdata with AWS Kinesis Data Streams
+# Using Netdata with AWS Kinesis Data Streams
## Prerequisites
-To use AWS Kinesis as a backend AWS SDK for C++ should be [installed](https://docs.aws.amazon.com/en_us/sdk-for-cpp/v1/developer-guide/setup.html) first. `libcrypto`, `libssl`, and `libcurl` are also required to compile netdata with Kinesis support enabled. Next, netdata should be re-installed from the source. The installer will detect that the required libraries are now available.
+To use AWS Kinesis as a backend AWS SDK for C++ should be [installed](https://docs.aws.amazon.com/en_us/sdk-for-cpp/v1/developer-guide/setup.html) first. `libcrypto`, `libssl`, and `libcurl` are also required to compile Netdata with Kinesis support enabled. Next, Netdata should be re-installed from the source. The installer will detect that the required libraries are now available.
If the AWS SDK for C++ is being installed from source, it is useful to set `-DBUILD_ONLY="kinesis"`. Otherwise, the building process could take a very long time. Take a note, that the default installation path for the libraries is `/usr/local/lib64`. Many Linux distributions don't include this path as the default one for a library search, so it is advisable to use the following options to `cmake` while building the AWS SDK:
@@ -13,15 +13,18 @@ cmake -DCMAKE_INSTALL_LIBDIR=/usr/lib -DCMAKE_INSTALL_INCLUDEDIR=/usr/include -D
## Configuration
To enable data sending to the kinesis backend set the following options in `netdata.conf`:
+
```
[backend]
enabled = yes
type = kinesis
destination = us-east-1
```
+
set the `destination` option to an AWS region.
-In the netdata configuration directory run `./edit-config aws_kinesis.conf` and set AWS credentials and stream name:
+In the Netdata configuration directory run `./edit-config aws_kinesis.conf` and set AWS credentials and stream name:
+
```
# AWS credentials
aws_access_key_id = your_access_key_id
@@ -30,9 +33,9 @@ aws_secret_access_key = your_secret_access_key
# destination stream
stream name = your_stream_name
```
-Alternatively, AWS credentials can be set for the *netdata* user using AWS SDK for C++ [standard methods](https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/credentials.html).
-A partition key for every record is computed automatically by the netdata with the purpose to distribute records across available shards evenly.
+Alternatively, AWS credentials can be set for the *netdata* user using AWS SDK for C++ [standard methods](https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/credentials.html).
+A partition key for every record is computed automatically by Netdata with the purpose to distribute records across available shards evenly.
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2Faws_kinesis%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2Faws_kinesis%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/backends/aws_kinesis/aws_kinesis.c b/backends/aws_kinesis/aws_kinesis.c
index d8b79364..b1ea4786 100644
--- a/backends/aws_kinesis/aws_kinesis.c
+++ b/backends/aws_kinesis/aws_kinesis.c
@@ -63,18 +63,11 @@ int read_kinesis_conf(const char *path, char **access_key_id_p, char **secret_ac
continue;
}
- if(!value) value = "";
+ if(!value)
+ value = "";
+ else
+ value = strip_quotes(value);
- // strip quotes
- if(*value == '"' || *value == '\'') {
- value++;
-
- s = value;
- while(*s) s++;
- if(s != value) s--;
-
- if(*s == '"' || *s == '\'') *s = '\0';
- }
if(name[0] == 'a' && name[4] == 'a' && !strcmp(name, "aws_access_key_id")) {
access_key_id = strdupz(value);
}
diff --git a/backends/backends.c b/backends/backends.c
index 15a0cb41..120c6e70 100644
--- a/backends/backends.c
+++ b/backends/backends.c
@@ -131,7 +131,8 @@ calculated_number backend_calculate_value_from_stored_data(
}
*/
for(rd->state->query_ops.init(rd, &handle, after, before) ; !rd->state->query_ops.is_finished(&handle) ; ) {
- n = rd->state->query_ops.next_metric(&handle);
+ time_t curr_t;
+ n = rd->state->query_ops.next_metric(&handle, &curr_t);
if(unlikely(!does_storage_number_exist(n))) {
// not collected
@@ -249,12 +250,11 @@ static void backends_main_cleanup(void *ptr) {
/**
* Set Kinesis variables
*
- * Set the variables necessaries to work with this specific backend.
+ * Set the variables necessary to work with this specific backend.
*
- * @param default_port the default port of the backend
+ * @param default_port the default port of the backend
* @param brc function called to check the result.
- * @param brf function called to format the msessage to the backend
- * @param type the backend string selector.
+ * @param brf function called to format the message to the backend
*/
void backend_set_kinesis_variables(int *default_port,
backend_response_checker_t brc,
@@ -278,12 +278,11 @@ void backend_set_kinesis_variables(int *default_port,
/**
* Set Prometheus variables
*
- * Set the variables necessaries to work with this specific backend.
+ * Set the variables necessary to work with this specific backend.
*
- * @param default_port the default port of the backend
+ * @param default_port the default port of the backend
* @param brc function called to check the result.
- * @param brf function called to format the msessage to the backend
- * @param type the backend string selector.
+ * @param brf function called to format the message to the backend
*/
void backend_set_prometheus_variables(int *default_port,
backend_response_checker_t brc,
@@ -301,14 +300,41 @@ void backend_set_prometheus_variables(int *default_port,
}
/**
+ * Set MongoDB variables
+ *
+ * Set the variables necessary to work with this specific backend.
+ *
+ * @param default_port the default port of the backend
+ * @param brc function called to check the result.
+ * @param brf function called to format the message to the backend
+ */
+void backend_set_mongodb_variables(int *default_port,
+ backend_response_checker_t brc,
+ backend_request_formatter_t brf)
+{
+ (void)default_port;
+#ifndef HAVE_MONGOC
+ (void)brc;
+ (void)brf;
+#endif
+
+#if HAVE_MONGOC
+ *brc = process_json_response;
+ if(BACKEND_OPTIONS_DATA_SOURCE(global_backend_options) == BACKEND_SOURCE_DATA_AS_COLLECTED)
+ *brf = format_dimension_collected_json_plaintext;
+ else
+ *brf = format_dimension_stored_json_plaintext;
+#endif
+}
+
+/**
* Set JSON variables
*
- * Set the variables necessaries to work with this specific backend.
+ * Set the variables necessary to work with this specific backend.
*
- * @param default_port the default port of the backend
+ * @param default_port the default port of the backend
* @param brc function called to check the result.
- * @param brf function called to format the msessage to the backend
- * @param type the backend string selector.
+ * @param brf function called to format the message to the backend
*/
void backend_set_json_variables(int *default_port,
backend_response_checker_t brc,
@@ -326,12 +352,11 @@ void backend_set_json_variables(int *default_port,
/**
* Set OpenTSDB HTTP variables
*
- * Set the variables necessaries to work with this specific backend.
+ * Set the variables necessary to work with this specific backend.
*
- * @param default_port the default port of the backend
+ * @param default_port the default port of the backend
* @param brc function called to check the result.
- * @param brf function called to format the msessage to the backend
- * @param type the backend string selector.
+ * @param brf function called to format the message to the backend
*/
void backend_set_opentsdb_http_variables(int *default_port,
backend_response_checker_t brc,
@@ -350,12 +375,11 @@ void backend_set_opentsdb_http_variables(int *default_port,
/**
* Set OpenTSDB Telnet variables
*
- * Set the variables necessaries to work with this specific backend.
+ * Set the variables necessary to work with this specific backend.
*
- * @param default_port the default port of the backend
+ * @param default_port the default port of the backend
* @param brc function called to check the result.
- * @param brf function called to format the msessage to the backend
- * @param type the backend string selector.
+ * @param brf function called to format the message to the backend
*/
void backend_set_opentsdb_telnet_variables(int *default_port,
backend_response_checker_t brc,
@@ -373,12 +397,11 @@ void backend_set_opentsdb_telnet_variables(int *default_port,
/**
* Set Graphite variables
*
- * Set the variables necessaries to work with this specific backend.
+ * Set the variables necessary to work with this specific backend.
*
- * @param default_port the default port of the backend
+ * @param default_port the default port of the backend
* @param brc function called to check the result.
- * @param brf function called to format the msessage to the backend
- * @param type the backend string selector.
+ * @param brf function called to format the message to the backend
*/
void backend_set_graphite_variables(int *default_port,
backend_response_checker_t brc,
@@ -421,6 +444,9 @@ BACKEND_TYPE backend_select_type(const char *type) {
else if (!strcmp(type, "kinesis") || !strcmp(type, "kinesis:plaintext")) {
return BACKEND_TYPE_KINESIS;
}
+ else if (!strcmp(type, "mongodb") || !strcmp(type, "mongodb:plaintext")) {
+ return BACKEND_TYPE_MONGODB;
+ }
return BACKEND_TYPE_UNKNOWN;
}
@@ -450,7 +476,18 @@ void *backends_main(void *ptr) {
#if ENABLE_PROMETHEUS_REMOTE_WRITE
int do_prometheus_remote_write = 0;
- BUFFER *http_request_header = buffer_create(1);
+ BUFFER *http_request_header = NULL;
+#endif
+
+#if HAVE_MONGOC
+ int do_mongodb = 0;
+ char *mongodb_uri = NULL;
+ char *mongodb_database = NULL;
+ char *mongodb_collection = NULL;
+
+ // set the default socket timeout in ms
+ int32_t mongodb_default_socket_timeout = (int32_t)(global_backend_update_every >= 2)?(global_backend_update_every * MSEC_PER_SEC - 500):1000;
+
#endif
#ifdef ENABLE_HTTPS
@@ -524,6 +561,7 @@ void *backends_main(void *ptr) {
#if ENABLE_PROMETHEUS_REMOTE_WRITE
do_prometheus_remote_write = 1;
+ http_request_header = buffer_create(1);
init_write_request();
#else
error("BACKEND: Prometheus remote write support isn't compiled");
@@ -547,6 +585,30 @@ void *backends_main(void *ptr) {
backend_set_kinesis_variables(&default_port,&backend_response_checker,&backend_request_formatter);
break;
}
+ case BACKEND_TYPE_MONGODB: {
+#if HAVE_MONGOC
+ if(unlikely(read_mongodb_conf(netdata_configured_user_config_dir,
+ &mongodb_uri,
+ &mongodb_database,
+ &mongodb_collection))) {
+ error("BACKEND: mongodb backend type is set but cannot read its configuration from %s/mongodb.conf",
+ netdata_configured_user_config_dir);
+ goto cleanup;
+ }
+
+ if(likely(!mongodb_init(mongodb_uri, mongodb_database, mongodb_collection, mongodb_default_socket_timeout))) {
+ backend_set_mongodb_variables(&default_port, &backend_response_checker, &backend_request_formatter);
+ do_mongodb = 1;
+ }
+ else {
+ error("BACKEND: cannot initialize MongoDB backend");
+ goto cleanup;
+ }
+#else
+ error("BACKEND: MongoDB support isn't compiled");
+#endif // HAVE_MONGOC
+ break;
+ }
case BACKEND_TYPE_GRAPHITE: {
backend_set_graphite_variables(&default_port,&backend_response_checker,&backend_request_formatter);
break;
@@ -658,7 +720,8 @@ void *backends_main(void *ptr) {
size_t count_dims_total = 0;
#if ENABLE_PROMETHEUS_REMOTE_WRITE
- clear_write_request();
+ if(do_prometheus_remote_write)
+ clear_write_request();
#endif
rrd_rdlock();
RRDHOST *host;
@@ -833,12 +896,53 @@ void *backends_main(void *ptr) {
chart_sent_metrics = chart_buffered_metrics;
buffer_flush(b);
- }
- else {
-#else
- {
+ } else
#endif /* HAVE_KINESIS */
+#if HAVE_MONGOC
+ if(do_mongodb) {
+ size_t buffer_len = buffer_strlen(b);
+ size_t sent = 0;
+
+ while(sent < buffer_len) {
+ const char *first_char = buffer_tostring(b);
+
+ debug(D_BACKEND, "BACKEND: mongodb_insert(): uri = %s, database = %s, collection = %s, \
+ buffer = %zu", mongodb_uri, mongodb_database, mongodb_collection, buffer_len);
+
+ if(likely(!mongodb_insert((char *)first_char, (size_t)chart_buffered_metrics))) {
+ sent += buffer_len;
+ chart_transmission_successes++;
+ chart_receptions++;
+ }
+ else {
+ // oops! we couldn't send (all or some of the) data
+ error("BACKEND: failed to write data to database backend '%s'. Willing to write %zu bytes, wrote %zu bytes.",
+ mongodb_uri, buffer_len, 0UL);
+
+ chart_transmission_failures++;
+ chart_data_lost_events++;
+ chart_lost_bytes += buffer_len;
+
+ // estimate the number of lost metrics
+ chart_lost_metrics += (collected_number)chart_buffered_metrics;
+
+ break;
+ }
+
+ if(unlikely(netdata_exit)) break;
+ }
+
+ chart_sent_bytes += sent;
+ if(likely(sent == buffer_len))
+ chart_sent_metrics = chart_buffered_metrics;
+
+ buffer_flush(b);
+ } else
+#endif /* HAVE_MONGOC */
+
+ {
+
// ------------------------------------------------------------------------
// if we are connected, receive a response, without blocking
@@ -1027,14 +1131,14 @@ void *backends_main(void *ptr) {
#if ENABLE_PROMETHEUS_REMOTE_WRITE
- if(failures) {
+ if(do_prometheus_remote_write && failures) {
(void) buffer_on_failures;
failures = 0;
chart_lost_bytes = chart_buffered_bytes = get_write_request_size(); // estimated write request size
chart_data_lost_events++;
chart_lost_metrics = chart_buffered_metrics;
- }
-#else
+ } else
+#endif
if(failures > buffer_on_failures) {
// too bad! we are going to lose data
chart_lost_bytes += buffer_strlen(b);
@@ -1044,7 +1148,6 @@ void *backends_main(void *ptr) {
chart_data_lost_events++;
chart_lost_metrics = chart_buffered_metrics;
}
-#endif /* ENABLE_PROMETHEUS_REMOTE_WRITE */
if(unlikely(netdata_exit)) break;
@@ -1101,9 +1204,17 @@ cleanup:
#endif
#if ENABLE_PROMETHEUS_REMOTE_WRITE
- if(do_prometheus_remote_write) {
- buffer_free(http_request_header);
+ buffer_free(http_request_header);
+ if(do_prometheus_remote_write)
protocol_buffers_shutdown();
+#endif
+
+#if HAVE_MONGOC
+ if(do_mongodb) {
+ mongodb_cleanup();
+ freez(mongodb_uri);
+ freez(mongodb_database);
+ freez(mongodb_collection);
}
#endif
diff --git a/backends/backends.h b/backends/backends.h
index 8d0bda41..9da04cce 100644
--- a/backends/backends.h
+++ b/backends/backends.h
@@ -16,13 +16,14 @@ typedef enum backend_options {
} BACKEND_OPTIONS;
typedef enum backend_types {
- BACKEND_TYPE_UNKNOWN, //Invalid type
- BACKEND_TYPE_GRAPHITE, //Send plain text to Graphite
- BACKEND_TYPE_OPENTSDB_USING_TELNET, //Send data to OpenTSDB using telnet API
- BACKEND_TYPE_OPENTSDB_USING_HTTP, //Send data to OpenTSDB using HTTP API
- BACKEND_TYPE_JSON, //Stores the data using JSON.
- BACKEND_TYPE_PROMETEUS, //The user selected to use Prometheus backend
- BACKEND_TYPE_KINESIS //Send message to AWS Kinesis
+ BACKEND_TYPE_UNKNOWN, // Invalid type
+ BACKEND_TYPE_GRAPHITE, // Send plain text to Graphite
+ BACKEND_TYPE_OPENTSDB_USING_TELNET, // Send data to OpenTSDB using telnet API
+ BACKEND_TYPE_OPENTSDB_USING_HTTP, // Send data to OpenTSDB using HTTP API
+ BACKEND_TYPE_JSON, // Stores the data using JSON.
+ BACKEND_TYPE_PROMETEUS, // The user selected to use Prometheus backend
+ BACKEND_TYPE_KINESIS, // Send message to AWS Kinesis
+ BACKEND_TYPE_MONGODB // Send data to MongoDB collection
} BACKEND_TYPE;
@@ -56,6 +57,22 @@ extern calculated_number backend_calculate_value_from_stored_data(
extern size_t backend_name_copy(char *d, const char *s, size_t usable);
extern int discard_response(BUFFER *b, const char *backend);
+static inline char *strip_quotes(char *str) {
+ if(*str == '"' || *str == '\'') {
+ char *s;
+
+ str++;
+
+ s = str;
+ while(*s) s++;
+ if(s != str) s--;
+
+ if(*s == '"' || *s == '\'') *s = '\0';
+ }
+
+ return str;
+}
+
#endif // BACKENDS_INTERNALS
#include "backends/prometheus/backend_prometheus.h"
@@ -71,4 +88,8 @@ extern int discard_response(BUFFER *b, const char *backend);
#include "backends/prometheus/remote_write/remote_write.h"
#endif
+#if HAVE_MONGOC
+#include "backends/mongodb/mongodb.h"
+#endif
+
#endif /* NETDATA_BACKENDS_H */
diff --git a/backends/graphite/Makefile.in b/backends/graphite/Makefile.in
new file mode 100644
index 00000000..e13c5ec3
--- /dev/null
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@@ -0,0 +1,507 @@
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diff --git a/backends/mongodb/README.md b/backends/mongodb/README.md
new file mode 100644
index 00000000..7538fe8b
--- /dev/null
+++ b/backends/mongodb/README.md
@@ -0,0 +1,32 @@
+# MongoDB backend
+
+## Prerequisites
+
+To use MongoDB as a backend, `libmongoc` 1.7.0 or higher should be [installed](http://mongoc.org/libmongoc/current/installing.html) first. Next, Netdata should be re-installed from the source. The installer will detect that the required libraries are now available.
+
+## Configuration
+
+To enable data sending to the MongoDB backend set the following options in `netdata.conf`:
+
+```
+[backend]
+ enabled = yes
+ type = mongodb
+```
+
+In the Netdata configuration directory run `./edit-config mongodb.conf` and set [MongoDB URI](https://docs.mongodb.com/manual/reference/connection-string/), database name, and collection name:
+
+```
+# URI
+uri = mongodb://<hostname>
+
+# database name
+database = your_database_name
+
+# collection name
+collection = your_collection_name
+```
+
+The default socket timeout depends on the backend update interval. The timeout is 500 ms shorter than the interval (but not less than 1000 ms). You can alter the timeout using the `sockettimeoutms` MongoDB URI option.
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2Fmongodb%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/backends/mongodb/mongodb.c b/backends/mongodb/mongodb.c
new file mode 100644
index 00000000..f40d8fa5
--- /dev/null
+++ b/backends/mongodb/mongodb.c
@@ -0,0 +1,189 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#define BACKENDS_INTERNALS
+#include "mongodb.h"
+#include <mongoc.h>
+
+#define CONFIG_FILE_LINE_MAX ((CONFIG_MAX_NAME + CONFIG_MAX_VALUE + 1024) * 2)
+
+mongoc_client_t *mongodb_client;
+mongoc_collection_t *mongodb_collection;
+
+int mongodb_init(const char *uri_string,
+ const char *database_string,
+ const char *collection_string,
+ int32_t default_socket_timeout) {
+ mongoc_uri_t *uri;
+ bson_error_t error;
+
+ mongoc_init();
+
+ uri = mongoc_uri_new_with_error(uri_string, &error);
+ if(unlikely(!uri)) {
+ error("BACKEND: failed to parse URI: %s. Error message: %s", uri_string, error.message);
+ return 1;
+ }
+
+ int32_t socket_timeout = mongoc_uri_get_option_as_int32(uri, MONGOC_URI_SOCKETTIMEOUTMS, default_socket_timeout);
+ if(!mongoc_uri_set_option_as_int32(uri, MONGOC_URI_SOCKETTIMEOUTMS, socket_timeout)) {
+ error("BACKEND: failed to set %s to the value %d", MONGOC_URI_SOCKETTIMEOUTMS, socket_timeout);
+ return 1;
+ };
+
+ mongodb_client = mongoc_client_new_from_uri(uri);
+ if(unlikely(!mongodb_client)) {
+ error("BACKEND: failed to create a new client");
+ return 1;
+ }
+
+ if(!mongoc_client_set_appname(mongodb_client, "netdata")) {
+ error("BACKEND: failed to set client appname");
+ };
+
+ mongodb_collection = mongoc_client_get_collection(mongodb_client, database_string, collection_string);
+
+ mongoc_uri_destroy(uri);
+
+ return 0;
+}
+
+void free_bson(bson_t **insert, size_t n_documents) {
+ size_t i;
+
+ for(i = 0; i < n_documents; i++)
+ bson_destroy(insert[i]);
+
+ free(insert);
+}
+
+int mongodb_insert(char *data, size_t n_metrics) {
+ bson_t **insert = calloc(n_metrics, sizeof(bson_t *));
+ bson_error_t error;
+ char *start = data, *end = data;
+ size_t n_documents = 0;
+
+ while(*end && n_documents <= n_metrics) {
+ while(*end && *end != '\n') end++;
+
+ if(likely(*end)) {
+ *end = '\0';
+ end++;
+ }
+ else {
+ break;
+ }
+
+ insert[n_documents] = bson_new_from_json((const uint8_t *)start, -1, &error);
+
+ if(unlikely(!insert[n_documents])) {
+ error("BACKEND: %s", error.message);
+ free_bson(insert, n_documents);
+ return 1;
+ }
+
+ start = end;
+
+ n_documents++;
+ }
+
+ if(unlikely(!mongoc_collection_insert_many(mongodb_collection, (const bson_t **)insert, n_documents, NULL, NULL, &error))) {
+ error("BACKEND: %s", error.message);
+ free_bson(insert, n_documents);
+ return 1;
+ }
+
+ free_bson(insert, n_documents);
+
+ return 0;
+}
+
+void mongodb_cleanup() {
+ mongoc_collection_destroy(mongodb_collection);
+ mongoc_client_destroy(mongodb_client);
+ mongoc_cleanup();
+
+ return;
+}
+
+int read_mongodb_conf(const char *path, char **uri_p, char **database_p, char **collection_p) {
+ char *uri = *uri_p;
+ char *database = *database_p;
+ char *collection = *collection_p;
+
+ if(unlikely(uri)) freez(uri);
+ if(unlikely(database)) freez(database);
+ if(unlikely(collection)) freez(collection);
+ uri = NULL;
+ database = NULL;
+ collection = NULL;
+
+ int line = 0;
+
+ char filename[FILENAME_MAX + 1];
+ snprintfz(filename, FILENAME_MAX, "%s/mongodb.conf", path);
+
+ char buffer[CONFIG_FILE_LINE_MAX + 1], *s;
+
+ debug(D_BACKEND, "BACKEND: opening config file '%s'", filename);
+
+ FILE *fp = fopen(filename, "r");
+ if(!fp) {
+ return 1;
+ }
+
+ while(fgets(buffer, CONFIG_FILE_LINE_MAX, fp) != NULL) {
+ buffer[CONFIG_FILE_LINE_MAX] = '\0';
+ line++;
+
+ s = trim(buffer);
+ if(!s || *s == '#') {
+ debug(D_BACKEND, "BACKEND: ignoring line %d of file '%s', it is empty.", line, filename);
+ continue;
+ }
+
+ char *name = s;
+ char *value = strchr(s, '=');
+ if(unlikely(!value)) {
+ error("BACKEND: ignoring line %d ('%s') of file '%s', there is no = in it.", line, s, filename);
+ continue;
+ }
+ *value = '\0';
+ value++;
+
+ name = trim(name);
+ value = trim(value);
+
+ if(unlikely(!name || *name == '#')) {
+ error("BACKEND: ignoring line %d of file '%s', name is empty.", line, filename);
+ continue;
+ }
+
+ if(!value)
+ value = "";
+ else
+ value = strip_quotes(value);
+
+ if(name[0] == 'u' && !strcmp(name, "uri")) {
+ uri = strdupz(value);
+ }
+ else if(name[0] == 'd' && !strcmp(name, "database")) {
+ database = strdupz(value);
+ }
+ else if(name[0] == 'c' && !strcmp(name, "collection")) {
+ collection = strdupz(value);
+ }
+ }
+
+ fclose(fp);
+
+ if(unlikely(!collection || !*collection)) {
+ error("BACKEND: collection name is a mandatory MongoDB parameter, but it is not configured");
+ return 1;
+ }
+
+ *uri_p = uri;
+ *database_p = database;
+ *collection_p = collection;
+
+ return 0;
+}
diff --git a/backends/mongodb/mongodb.conf b/backends/mongodb/mongodb.conf
new file mode 100644
index 00000000..11ea6efb
--- /dev/null
+++ b/backends/mongodb/mongodb.conf
@@ -0,0 +1,12 @@
+# MongoDB backend configuration
+#
+# All options in this file are mandatory
+
+# URI
+uri =
+
+# database name
+database =
+
+# collection name
+collection =
diff --git a/backends/mongodb/mongodb.h b/backends/mongodb/mongodb.h
new file mode 100644
index 00000000..ffb27690
--- /dev/null
+++ b/backends/mongodb/mongodb.h
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_BACKEND_MONGODB_H
+#define NETDATA_BACKEND_MONGODB_H
+
+#include "backends/backends.h"
+
+extern int mongodb_init(const char *uri_string, const char *database_string, const char *collection_string, const int32_t socket_timeout);
+
+extern int mongodb_insert(char *data, size_t n_metrics);
+
+extern void mongodb_cleanup();
+
+extern int read_mongodb_conf(const char *path, char **uri_p, char **database_p, char **collection_p);
+
+#endif //NETDATA_BACKEND_MONGODB_H
diff --git a/backends/opentsdb/Makefile.in b/backends/opentsdb/Makefile.in
new file mode 100644
index 00000000..89ee50ac
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diff --git a/backends/opentsdb/README.md b/backends/opentsdb/README.md
deleted file mode 100644
index ab1f08bd..00000000
--- a/backends/opentsdb/README.md
+++ /dev/null
@@ -1,25 +0,0 @@
-# OpenTSDB with HTTP
-
-Netdata can easily communicate with OpenTSDB using HTTP API. To enable this channel, set the following options in your `netdata.conf`:
-
-```
-[backend]
- type = opentsdb:http
- destination = localhost:4242
-```
-
-In this example, OpenTSDB is running with its default port, which is `4242`. If you run OpenTSDB on a different port, change the `destination = localhost:4242` line accordingly.
-
-## HTTPS
-
-As of [v1.16.0](https://github.com/netdata/netdata/releases/tag/v1.16.0), Netdata can send metrics to OpenTSDB using TLS/SSL. Unfortunately, OpenTDSB does not support encrypted connections, so you will have to configure a reverse proxy to enable HTTPS communication between Netdata and OpenTSBD. You can set up a reverse proxy with [Nginx](../../docs/Running-behind-nginx.md).
-
-After your proxy is configured, make the following changes to `netdata.conf`:
-
-```
-[backend]
- type = opentsdb:https
- destination = localhost:8082
-```
-
-In this example, we used the port `8082` for our reverse proxy. If your reverse proxy listens on a different port, change the `destination = localhost:8082` line accordingly.
diff --git a/backends/prometheus/Makefile.in b/backends/prometheus/Makefile.in
new file mode 100644
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+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/backends/prometheus/README.md b/backends/prometheus/README.md
index 6b070dea..0a4be27e 100644
--- a/backends/prometheus/README.md
+++ b/backends/prometheus/README.md
@@ -1,37 +1,39 @@
-# Using netdata with Prometheus
+# Using Netdata with Prometheus
-> IMPORTANT: the format netdata sends metrics to prometheus has changed since netdata v1.7. The new prometheus backend for netdata supports a lot more features and is aligned to the development of the rest of the netdata backends.
+> IMPORTANT: the format Netdata sends metrics to prometheus has changed since Netdata v1.7. The new prometheus backend for Netdata supports a lot more features and is aligned to the development of the rest of the Netdata backends.
-Prometheus is a distributed monitoring system which offers a very simple setup along with a robust data model. Recently netdata added support for Prometheus. I'm going to quickly show you how to install both netdata and prometheus on the same server. We can then use grafana pointed at Prometheus to obtain long term metrics netdata offers. I'm assuming we are starting at a fresh ubuntu shell (whether you'd like to follow along in a VM or a cloud instance is up to you).
+Prometheus is a distributed monitoring system which offers a very simple setup along with a robust data model. Recently Netdata added support for Prometheus. I'm going to quickly show you how to install both Netdata and prometheus on the same server. We can then use grafana pointed at Prometheus to obtain long term metrics Netdata offers. I'm assuming we are starting at a fresh ubuntu shell (whether you'd like to follow along in a VM or a cloud instance is up to you).
+## Installing Netdata and prometheus
-## Installing netdata and prometheus
+### Installing Netdata
-### Installing netdata
+There are number of ways to install Netdata according to [Installation](../../packaging/installer/#installation)\
+The suggested way of installing the latest Netdata and keep it upgrade automatically. Using one line installation:
-There are number of ways to install netdata according to [Installation](../../packaging/installer/#installation)
-The suggested way of installing the latest netdata and keep it upgrade automatically. Using one line installation:
-
-```
+```sh
bash <(curl -Ss https://my-netdata.io/kickstart.sh)
```
-At this point we should have netdata listening on port 19999. Attempt to take your browser here:
+At this point we should have Netdata listening on port 19999. Attempt to take your browser here:
```
http://your.netdata.ip:19999
```
-*(replace `your.netdata.ip` with the IP or hostname of the server running netdata)*
+_(replace `your.netdata.ip` with the IP or hostname of the server running Netdata)_
### Installing Prometheus
-In order to install prometheus we are going to introduce our own systemd startup script along with an example of prometheus.yaml configuration. Prometheus needs to be pointed to your server at a specific target url for it to scrape netdata's api. Prometheus is always a pull model meaning netdata is the passive client within this architecture. Prometheus always initiates the connection with netdata.
+In order to install prometheus we are going to introduce our own systemd startup script along with an example of prometheus.yaml configuration. Prometheus needs to be pointed to your server at a specific target url for it to scrape Netdata's api. Prometheus is always a pull model meaning Netdata is the passive client within this architecture. Prometheus always initiates the connection with Netdata.
#### Download Prometheus
```sh
-wget -O /tmp/prometheus-2.3.2.linux-amd64.tar.gz https://github.com/prometheus/prometheus/releases/download/v2.3.2/prometheus-2.3.2.linux-amd64.tar.gz
+cd /tmp && curl -s https://api.github.com/repos/prometheus/prometheus/releases/latest \
+| grep "browser_download_url.*linux-amd64.tar.gz" \
+| cut -d '"' -f 4 \
+| wget -qi -
```
#### Create prometheus system user
@@ -50,14 +52,14 @@ sudo chown prometheus:prometheus /opt/prometheus
#### Untar prometheus directory
```sh
-sudo tar -xvf /tmp/prometheus-2.3.2.linux-amd64.tar.gz -C /opt/prometheus --strip=1
+sudo tar -xvf /tmp/prometheus-*linux-amd64.tar.gz -C /opt/prometheus --strip=1
```
#### Install prometheus.yml
We will use the following `prometheus.yml` file. Save it at `/opt/prometheus/prometheus.yml`.
-Make sure to replace `your.netdata.ip` with the IP or hostname of the host running netdata.
+Make sure to replace `your.netdata.ip` with the IP or hostname of the host running Netdata.
```yaml
# my global config
@@ -101,7 +103,7 @@ scrape_configs:
#source: [as-collected]
#
# server name for this prometheus - the default is the client IP
- # for netdata to uniquely identify it
+ # for Netdata to uniquely identify it
#server: ['prometheus1']
honor_labels: true
@@ -111,8 +113,8 @@ scrape_configs:
#### Install nodes.yml
-The following is completely optional, it will enable Prometheus to generate alerts from some NetData sources. Tweak the values to your own needs. We will use the following `nodes.yml` file below. Save it at `/opt/prometheus/nodes.yml`, and add a *- "nodes.yml"* entry under the *rule_files:* section in the example prometheus.yml file above.
-```
+The following is completely optional, it will enable Prometheus to generate alerts from some NetData sources. Tweak the values to your own needs. We will use the following `nodes.yml` file below. Save it at `/opt/prometheus/nodes.yml`, and add a _- "nodes.yml"_ entry under the _rule_files:_ section in the example prometheus.yml file above.
+```yaml
groups:
- name: nodes
@@ -171,69 +173,70 @@ ExecStop=/bin/kill -SIGINT $MAINPID
[Install]
WantedBy=multi-user.target
```
+
##### Start Prometheus
-```
+```sh
sudo systemctl start prometheus
sudo systemctl enable prometheus
```
Prometheus should now start and listen on port 9090. Attempt to head there with your browser.
-If everything is working correctly when you fetch `http://your.prometheus.ip:9090` you will see a 'Status' tab. Click this and click on 'targets' We should see the netdata host as a scraped target.
+If everything is working correctly when you fetch `http://your.prometheus.ip:9090` you will see a 'Status' tab. Click this and click on 'targets' We should see the Netdata host as a scraped target.
----
+- - -
## Netdata support for prometheus
-> IMPORTANT: the format netdata sends metrics to prometheus has changed since netdata v1.6. The new format allows easier queries for metrics and supports both `as collected` and normalized metrics.
+> IMPORTANT: the format Netdata sends metrics to prometheus has changed since Netdata v1.6. The new format allows easier queries for metrics and supports both `as collected` and normalized metrics.
-Before explaining the changes, we have to understand the key differences between netdata and prometheus.
+Before explaining the changes, we have to understand the key differences between Netdata and prometheus.
-### understanding netdata metrics
+### understanding Netdata metrics
-##### charts
+#### charts
-Each chart in netdata has several properties (common to all its metrics):
+Each chart in Netdata has several properties (common to all its metrics):
-- `chart_id` - uniquely identifies a chart.
+- `chart_id` - uniquely identifies a chart.
-- `chart_name` - a more human friendly name for `chart_id`, also unique.
+- `chart_name` - a more human friendly name for `chart_id`, also unique.
-- `context` - this is the template of the chart. All disk I/O charts have the same context, all mysql requests charts have the same context, etc. This is used for alarm templates to match all the charts they should be attached to.
+- `context` - this is the template of the chart. All disk I/O charts have the same context, all mysql requests charts have the same context, etc. This is used for alarm templates to match all the charts they should be attached to.
-- `family` groups a set of charts together. It is used as the submenu of the dashboard.
+- `family` groups a set of charts together. It is used as the submenu of the dashboard.
-- `units` is the units for all the metrics attached to the chart.
+- `units` is the units for all the metrics attached to the chart.
-##### dimensions
+#### dimensions
-Then each netdata chart contains metrics called `dimensions`. All the dimensions of a chart have the same units of measurement, and are contextually in the same category (ie. the metrics for disk bandwidth are `read` and `write` and they are both in the same chart).
+Then each Netdata chart contains metrics called `dimensions`. All the dimensions of a chart have the same units of measurement, and are contextually in the same category (ie. the metrics for disk bandwidth are `read` and `write` and they are both in the same chart).
-### netdata data source
+### Netdata data source
Netdata can send metrics to prometheus from 3 data sources:
-- `as collected` or `raw` - this data source sends the metrics to prometheus as they are collected. No conversion is done by netdata. The latest value for each metric is just given to prometheus. This is the most preferred method by prometheus, but it is also the harder to work with. To work with this data source, you will need to understand how to get meaningful values out of them.
+- `as collected` or `raw` - this data source sends the metrics to prometheus as they are collected. No conversion is done by Netdata. The latest value for each metric is just given to prometheus. This is the most preferred method by prometheus, but it is also the harder to work with. To work with this data source, you will need to understand how to get meaningful values out of them.
- The format of the metrics is: `CONTEXT{chart="CHART",family="FAMILY",dimension="DIMENSION"}`.
+ The format of the metrics is: `CONTEXT{chart="CHART",family="FAMILY",dimension="DIMENSION"}`.
- If the metric is a counter (`incremental` in netdata lingo), `_total` is appended the context.
+ If the metric is a counter (`incremental` in Netdata lingo), `_total` is appended the context.
- Unlike prometheus, netdata allows each dimension of a chart to have a different algorithm and conversion constants (`multiplier` and `divisor`). In this case, that the dimensions of a charts are heterogeneous, netdata will use this format: `CONTEXT_DIMENSION{chart="CHART",family="FAMILY"}`
+ Unlike prometheus, Netdata allows each dimension of a chart to have a different algorithm and conversion constants (`multiplier` and `divisor`). In this case, that the dimensions of a charts are heterogeneous, Netdata will use this format: `CONTEXT_DIMENSION{chart="CHART",family="FAMILY"}`
-- `average` - this data source uses the netdata database to send the metrics to prometheus as they are presented on the netdata dashboard. So, all the metrics are sent as gauges, at the units they are presented in the netdata dashboard charts. This is the easiest to work with.
+- `average` - this data source uses the Netdata database to send the metrics to prometheus as they are presented on the Netdata dashboard. So, all the metrics are sent as gauges, at the units they are presented in the Netdata dashboard charts. This is the easiest to work with.
- The format of the metrics is: `CONTEXT_UNITS_average{chart="CHART",family="FAMILY",dimension="DIMENSION"}`.
+ The format of the metrics is: `CONTEXT_UNITS_average{chart="CHART",family="FAMILY",dimension="DIMENSION"}`.
- When this source is used, netdata keeps track of the last access time for each prometheus server fetching the metrics. This last access time is used at the subsequent queries of the same prometheus server to identify the time-frame the `average` will be calculated. So, no matter how frequently prometheus scrapes netdata, it will get all the database data. To identify each prometheus server, netdata uses by default the IP of the client fetching the metrics. If there are multiple prometheus servers fetching data from the same netdata, using the same IP, each prometheus server can append `server=NAME` to the URL. Netdata will use this `NAME` to uniquely identify the prometheus server.
+ When this source is used, Netdata keeps track of the last access time for each prometheus server fetching the metrics. This last access time is used at the subsequent queries of the same prometheus server to identify the time-frame the `average` will be calculated. So, no matter how frequently prometheus scrapes Netdata, it will get all the database data. To identify each prometheus server, Netdata uses by default the IP of the client fetching the metrics. If there are multiple prometheus servers fetching data from the same Netdata, using the same IP, each prometheus server can append `server=NAME` to the URL. Netdata will use this `NAME` to uniquely identify the prometheus server.
-- `sum` or `volume`, is like `average` but instead of averaging the values, it sums them.
+- `sum` or `volume`, is like `average` but instead of averaging the values, it sums them.
- The format of the metrics is: `CONTEXT_UNITS_sum{chart="CHART",family="FAMILY",dimension="DIMENSION"}`.
- All the other operations are the same with `average`.
+ The format of the metrics is: `CONTEXT_UNITS_sum{chart="CHART",family="FAMILY",dimension="DIMENSION"}`.
+ All the other operations are the same with `average`.
-Keep in mind that early versions of netdata were sending the metrics as: `CHART_DIMENSION{}`.
+Keep in mind that early versions of Netdata were sending the metrics as: `CHART_DIMENSION{}`.
### Querying Metrics
@@ -241,11 +244,11 @@ Fetch with your web browser this URL:
`http://your.netdata.ip:19999/api/v1/allmetrics?format=prometheus&help=yes`
-*(replace `your.netdata.ip` with the ip or hostname of your netdata server)*
+_(replace `your.netdata.ip` with the ip or hostname of your Netdata server)_
-netdata will respond with all the metrics it sends to prometheus.
+Netdata will respond with all the metrics it sends to prometheus.
-If you search that page for `"system.cpu"` you will find all the metrics netdata is exporting to prometheus for this chart. `system.cpu` is the chart name on the netdata dashboard (on the netdata dashboard all charts have a text heading such as : `Total CPU utilization (system.cpu)`. What we are interested here in the chart name: `system.cpu`).
+If you search that page for `"system.cpu"` you will find all the metrics Netdata is exporting to prometheus for this chart. `system.cpu` is the chart name on the Netdata dashboard (on the Netdata dashboard all charts have a text heading such as : `Total CPU utilization (system.cpu)`. What we are interested here in the chart name: `system.cpu`).
Searching for `"system.cpu"` reveals:
@@ -272,7 +275,8 @@ netdata_system_cpu_percentage_average{chart="system.cpu",family="cpu",dimension=
# COMMENT netdata_system_cpu_percentage_average: dimension "idle", value is percentage, gauge, dt 1500066653 to 1500066662 inclusive
netdata_system_cpu_percentage_average{chart="system.cpu",family="cpu",dimension="idle"} 92.3630770 1500066662000
```
-*(netdata response for `system.cpu` with source=`average`)*
+
+_(Netdata response for `system.cpu` with source=`average`)_
In `average` or `sum` data sources, all values are normalized and are reported to prometheus as gauges. Now, use the 'expression' text form in prometheus. Begin to type the metrics we are looking for: `netdata_system_cpu`. You should see that the text form begins to auto-fill as prometheus knows about this metric.
@@ -302,15 +306,15 @@ netdata_system_cpu_total{chart="system.cpu",family="cpu",dimension="iowait"} 233
netdata_system_cpu_total{chart="system.cpu",family="cpu",dimension="idle"} 918470 1500066716438
```
-*(netdata response for `system.cpu` with source=`as-collected`)*
+_(Netdata response for `system.cpu` with source=`as-collected`)_
For more information check prometheus documentation.
### Streaming data from upstream hosts
-The `format=prometheus` parameter only exports the host's netdata metrics. If you are using the master/slave functionality of netdata this ignores any upstream hosts - so you should consider using the below in your **prometheus.yml**:
+The `format=prometheus` parameter only exports the host's Netdata metrics. If you are using the master/slave functionality of Netdata this ignores any upstream hosts - so you should consider using the below in your **prometheus.yml**:
-```
+```yaml
metrics_path: '/api/v1/allmetrics'
params:
format: [prometheus_all_hosts]
@@ -321,13 +325,13 @@ This will report all upstream host data, and `honor_labels` will make Prometheus
### Timestamps
-To pass the metrics through prometheus pushgateway, netdata supports the option `&timestamps=no` to send the metrics without timestamps.
+To pass the metrics through prometheus pushgateway, Netdata supports the option `&timestamps=no` to send the metrics without timestamps.
## Netdata host variables
-netdata collects various system configuration metrics, like the max number of TCP sockets supported, the max number of files allowed system-wide, various IPC sizes, etc. These metrics are not exposed to prometheus by default.
+Netdata collects various system configuration metrics, like the max number of TCP sockets supported, the max number of files allowed system-wide, various IPC sizes, etc. These metrics are not exposed to prometheus by default.
-To expose them, append `variables=yes` to the netdata URL.
+To expose them, append `variables=yes` to the Netdata URL.
### TYPE and HELP
@@ -335,7 +339,7 @@ To save bandwidth, and because prometheus does not use them anyway, `# TYPE` and
### Names and IDs
-netdata supports names and IDs for charts and dimensions. Usually IDs are unique identifiers as read by the system and names are human friendly labels (also unique).
+Netdata supports names and IDs for charts and dimensions. Usually IDs are unique identifiers as read by the system and names are human friendly labels (also unique).
Most charts and metrics have the same ID and name, but in several cases they are different: disks with device-mapper, interrupts, QoS classes, statsd synthetic charts, etc.
@@ -348,23 +352,23 @@ The default is controlled in `netdata.conf`:
You can overwrite it from prometheus, by appending to the URL:
-* `&names=no` to get IDs (the old behaviour)
-* `&names=yes` to get names
+- `&names=no` to get IDs (the old behaviour)
+- `&names=yes` to get names
### Filtering metrics sent to prometheus
-netdata can filter the metrics it sends to prometheus with this setting:
+Netdata can filter the metrics it sends to prometheus with this setting:
```
[backend]
send charts matching = *
```
-This settings accepts a space separated list of patterns to match the **charts** to be sent to prometheus. Each pattern can use ` * ` as wildcard, any number of times (e.g `*a*b*c*` is valid). Patterns starting with ` ! ` give a negative match (e.g `!*.bad users.* groups.*` will send all the users and groups except `bad` user and `bad` group). The order is important: the first match (positive or negative) left to right, is used.
+This settings accepts a space separated list of patterns to match the **charts** to be sent to prometheus. Each pattern can use `*` as wildcard, any number of times (e.g `*a*b*c*` is valid). Patterns starting with `!` give a negative match (e.g `!*.bad users.* groups.*` will send all the users and groups except `bad` user and `bad` group). The order is important: the first match (positive or negative) left to right, is used.
-### Changing the prefix of netdata metrics
+### Changing the prefix of Netdata metrics
-netdata sends all metrics prefixed with `netdata_`. You can change this in `netdata.conf`, like this:
+Netdata sends all metrics prefixed with `netdata_`. You can change this in `netdata.conf`, like this:
```
[backend]
@@ -383,8 +387,8 @@ To get the metric names as they were before v1.12, append to the URL `&oldunits=
### Accuracy of `average` and `sum` data sources
-When the data source is set to `average` or `sum`, netdata remembers the last access of each client accessing prometheus metrics and uses this last access time to respond with the `average` or `sum` of all the entries in the database since that. This means that prometheus servers are not losing data when they access netdata with data source = `average` or `sum`.
+When the data source is set to `average` or `sum`, Netdata remembers the last access of each client accessing prometheus metrics and uses this last access time to respond with the `average` or `sum` of all the entries in the database since that. This means that prometheus servers are not losing data when they access Netdata with data source = `average` or `sum`.
-To uniquely identify each prometheus server, netdata uses the IP of the client accessing the metrics. If however the IP is not good enough for identifying a single prometheus server (e.g. when prometheus servers are accessing netdata through a web proxy, or when multiple prometheus servers are NATed to a single IP), each prometheus may append `&server=NAME` to the URL. This `NAME` is used by netdata to uniquely identify each prometheus server and keep track of its last access time.
+To uniquely identify each prometheus server, Netdata uses the IP of the client accessing the metrics. If however the IP is not good enough for identifying a single prometheus server (e.g. when prometheus servers are accessing Netdata through a web proxy, or when multiple prometheus servers are NATed to a single IP), each prometheus may append `&server=NAME` to the URL. This `NAME` is used by Netdata to uniquely identify each prometheus server and keep track of its last access time.
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2Fprometheus%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2Fprometheus%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/backends/prometheus/remote_write/Makefile.in b/backends/prometheus/remote_write/Makefile.in
new file mode 100644
index 00000000..f7bf4a6c
--- /dev/null
+++ b/backends/prometheus/remote_write/Makefile.in
@@ -0,0 +1,521 @@
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diff --git a/backends/prometheus/remote_write/README.md b/backends/prometheus/remote_write/README.md
index 73cb1daf..8af6f4d1 100644
--- a/backends/prometheus/remote_write/README.md
+++ b/backends/prometheus/remote_write/README.md
@@ -2,7 +2,7 @@
## Prerequisites
-To use the prometheus remote write API with [storage providers](https://prometheus.io/docs/operating/integrations/#remote-endpoints-and-storage) [protobuf](https://developers.google.com/protocol-buffers/) and [snappy](https://github.com/google/snappy) libraries should be installed first. Next, netdata should be re-installed from the source. The installer will detect that the required libraries and utilities are now available.
+To use the prometheus remote write API with [storage providers](https://prometheus.io/docs/operating/integrations/#remote-endpoints-and-storage) [protobuf](https://developers.google.com/protocol-buffers/) and [snappy](https://github.com/google/snappy) libraries should be installed first. Next, Netdata should be re-installed from the source. The installer will detect that the required libraries and utilities are now available.
## Configuration
@@ -27,4 +27,4 @@ The default value is `/receive`. `remote write URL path` is used to set an endpo
The remote write backend does not support `buffer on failures`
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2Fprometheus%2Fremote_write%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fbackends%2Fprometheus%2Fremote_write%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)