RethinkDB
RethinkDB
Plugin: python.d.plugin Module: rethinkdbs
Overview
This collector monitors metrics about RethinkDB clusters and database servers.
It uses the rethinkdb python module to connect to a RethinkDB server instance and gather statistics.
This collector is supported on all platforms.
This collector supports collecting metrics from multiple instances of this integration, including remote instances.
Default Behavior
Auto-Detection
When no configuration file is found, the collector tries to connect to 127.0.0.1:28015.
Limits
The default configuration for this integration does not impose any limits on data collection.
Performance Impact
The default configuration for this integration is not expected to impose a significant performance impact on the system.
Setup
Prerequisites
Required python module
The collector requires the rethinkdb python module to be installed.
Configuration
File
The configuration file name for this integration is python.d/rethinkdbs.conf.
You can edit the configuration file using the edit-config script from the
Netdata config directory.
cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config python.d/rethinkdbs.conf
Options
There are 2 sections:
- Global variables
- One or more JOBS that can define multiple different instances to monitor.
The following options can be defined globally: priority, penalty, autodetection_retry, update_every, but can also be defined per JOB to override the global values.
Additionally, the following collapsed table contains all the options that can be configured inside a JOB definition.
Every configuration JOB starts with a job_name value which will appear in the dashboard, unless a name parameter is specified.
| Name | Description | Default | Required |
|---|---|---|---|
| update_every | Sets the default data collection frequency. | 5 | False |
| priority | Controls the order of charts at the netdata dashboard. | 60000 | False |
| autodetection_retry | Sets the job re-check interval in seconds. | 0 | False |
| penalty | Indicates whether to apply penalty to update_every in case of failures. | yes | False |
| name | Job name. This value will overwrite the job_name value. JOBS with the same name are mutually exclusive. Only one of them will be allowed running at any time. This allows autodetection to try several alternatives and pick the one that works. |
False | |
| host | Hostname or ip of the RethinkDB server. | localhost | False |
| port | Port to connect to the RethinkDB server. | 28015 | False |
| user | The username to use to connect to the RethinkDB server. | admin | False |
| password | The password to use to connect to the RethinkDB server. | False | |
| timeout | Set a connect timeout to the RethinkDB server. | 2 | False |
Examples
Local RethinkDB server
An example of a configuration for a local RethinkDB server
localhost:
name: 'local'
host: '127.0.0.1'
port: 28015
user: "user"
password: "pass"
Metrics
Metrics grouped by scope.
The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
Per RethinkDB instance
These metrics refer to the entire monitored application.
This scope has no labels.
Metrics:
| Metric | Dimensions | Unit |
|---|---|---|
| rethinkdb.cluster_connected_servers | connected, missing | servers |
| rethinkdb.cluster_clients_active | active | clients |
| rethinkdb.cluster_queries | queries | queries/s |
| rethinkdb.cluster_documents | reads, writes | documents/s |
Per database server
This scope has no labels.
Metrics:
| Metric | Dimensions | Unit |
|---|---|---|
| rethinkdb.client_connections | connections | connections |
| rethinkdb.clients_active | active | clients |
| rethinkdb.queries | queries | queries/s |
| rethinkdb.documents | reads, writes | documents/s |
Alerts
There are no alerts configured by default for this integration.
Troubleshooting
Debug Mode
To troubleshoot issues with the rethinkdbs collector, run the python.d.plugin with the debug option enabled. The output
should give you clues as to why the collector isn’t working.
-
Navigate to the
plugins.ddirectory, usually at/usr/libexec/netdata/plugins.d/. If that’s not the case on your system, opennetdata.confand look for thepluginssetting under[directories].cd /usr/libexec/netdata/plugins.d/ -
Switch to the
netdatauser.sudo -u netdata -s -
Run the
python.d.pluginto debug the collector:./python.d.plugin rethinkdbs debug trace