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contrib-munin/plugins/other/delayed_jobs_queue_size

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2009-05-21 22:34:44 +02:00
#!/usr/bin/env ruby
# by Helder Ribeiro 2009
#
# Plugin to monitor delayed_jobs' queue size
# Gives updates with number of jobs that haven't been started yet
# plus the ones that failed and are still rescheduled for another run
#
# Parameters supported:
#
# config
require 'rubygems'
require 'mysql'
require 'yaml'
class Grapher
def initialize(db_conf)
@db_conf = db_conf
end
def config
puts <<-END_CONFIG
graph_title Delayed_Jobs Queue Size
graph_args -l 0
graph_vlabel jobs to be run
jobs.label jobs
jobs.type GAUGE
END_CONFIG
end
def get_data
mysql = Mysql.new(@db_conf['host'] || 'localhost',
@db_conf['username'] || 'root', @db_conf['password'],
@db_conf['database'], @db_conf['port'],
@db_conf['socket'])
result = mysql.query("SELECT count(*) FROM delayed_jobs WHERE \
first_started_at IS NULL OR run_at > NOW()")
value = result.fetch_hash.values.first
puts "jobs.value #{value}"
end
end
if __FILE__ == $0
environment = ENV['RAILS_ENV'] || 'production'
db_conf = YAML.load(File.read(ENV['DATABASE_YML']))[environment]
grapher = Grapher.new(db_conf)
case ARGV.first
when 'config'
grapher.config
else
grapher.get_data
end
end