Redis Munin

A set of munin scripts to monitor redis

Installation

1. Installation of ruby

2. gem install redis

3. Symlink the plugin you want to run (with parameters in the link's name). Eg:

   ln -s /home/ea-admin/redis-munin/redis_memory_ /etc/munin/plugins/redis_memory_127_0_0_1_6379

Usage

Parameters

The parameters are in the filename in the format _IP_PORT, where IP is the 4 part ipv4 separated by '_'

Valid link name

Note the ending '_' when no ip or port:

• redis_command_
• redis_command_1_2_3_4_
• redis_command_1_2_3_4_port

ip will default to 127.0.0.1

port will default to 6379

Scripts

• redis_change_since_last_save_
  Number of changes since last save

• redis_databases_
  List all DBs with number of keys and expire

• redis_memory_
  Used memory

• redis_total_commands_
  Total commands

• redis_total_connections_
  Total connections

• redis_users_
  Current clients

• resque_failed_
  COUNTER for failures

  Need resque-web

  TODO use driver or netcat or telnet

• resque_workers_
  % of working workers

  Need resque-web

  TODO use driver or netcat or telnet

• resque_queues_
  COUNTER for in / out jobs per queue. This ones needs some hooks to create the stats:

    def self.after_enqueue(*job_args)
      Resque::Stat.incr(@queue.to_s + ":pushed")
    end

    def self.after_perform(*job_args)
      Resque::Stat.incr(@queue.to_s + ":finished")
    end

https://github.com/defunkt/resque/blob/master/docs/HOOKS.md

Changelog

• added keyspace hit/miss statistics (** Christian Parpart trapni@gentoo.org **)
• fixed redis_databases_ labels (thanks japerk)