redis_plugin

This is a collectd (http://collectd.org/) plugin which runs under the Python plugin (https://collectd.org/wiki/index.php/Plugin:Python) to collect metrics from redis (http://redis.io/).

Requirements:

Redis
Read access to Redis' UNIX Domain socket or TCP port.

collectd
Collectd must have the Python plugin installed. See (https://collectd.org/wiki/index.php/Plugin:Python)

Python 2.6 and later
Plugin currently supports Python 2.6 and later.

Options:

• Socket
  Path to a UNIX Domain socket of the Redis instance.
  Default: none
• IP
  IP Address of the Redis instance.
  When specified together with Socket, takes over Socket option.
  Default: 127.0.0.1
• Port
  TCP Port of the Redis instance.
  Default: 6379
• Auth
  Password to use when connecting to Redis instance.
  Default: none
• Commandstats
  Include Redis command statistics, from "INFO COMMANDSTATS" command.
  Default: false
• Verbose
  Provide verbose logging of plugin operation in the Collectd's log.
  Default: false
• Instance
  There are situations when multiple instances of Redis need to run on the same host. This option opens an Instance block.

Single-instance Plugin Config Example:

TypesDB "/usr/share/collectd/redis_types.db"

<LoadPlugin python>
    Globals true
</LoadPlugin>

<Plugin python>
    # redis_plugin.py is at /usr/lib64/collectd/redis_plugin.py
    ModulePath "/usr/lib64/collectd/"

    Import "redis_plugin"

    <Module redis_plugin>
      Socket "/var/run/redis.sock"
      Commandstats true
      Verbose false
    </Module>
</Plugin>

Multi-instance Plugin Config Example:

TypesDB "/usr/share/collectd/redis_types.db"`

<LoadPlugin python>
    Globals true
</LoadPlugin>

<Plugin python>
    # redis_plugin.py is at /usr/lib64/collectd/redis_plugin.py
    ModulePath "/usr/lib64/collectd/"

    Import "redis_plugin"

    <Module redis_plugin>
      <Instance redis1>
          Socket "/var/run/redis1.sock"
          Commandstats false
      </Instance>
      <Instance redis2>
          IP "127.0.0.1"
          Port 6379
          Auth "foobared"
          Commandstats true
      </Instance>
      Verbose false
    </Module>
</Plugin>

Graph Examples:

These graphs were created using Graphite (http://graphite.wikidot.com/)

Connected Clients:

Redis Process RSS Memory:

Commands per Second:

Redis GET Commands per Second:

Cache Hits:

RDB Changes Since Last Save:

Total Keys in db0:

Stats Example 1:

Stats Example 2: