Class: Bipbip::Plugin::Mysql

Inherits:
Bipbip::Plugin show all
Defined in:
lib/bipbip/plugin/mysql.rb

Instance Method Summary collapse

Methods inherited from Bipbip::Plugin

#initialize, #interrupt, #interrupted?, #metric_identifier, #metrics_names, #name, #run

Methods included from InterruptibleSleep

#interrupt_sleep, #interruptible_sleep

Constructor Details

This class inherits a constructor from Bipbip::Plugin

Instance Method Details

#metrics_schema ⇒ Object 



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# File 'lib/bipbip/plugin/mysql.rb', line 7

def metrics_schema
  [
      {:name => 'max_connections', :type => 'ce_gauge', :unit => 'Connections'},
      {:name => 'Max_used_connections', :type => 'ce_gauge', :unit => 'Connections'},
      {:name => 'Connections', :type => 'ce_counter', :unit => 'Connections'},
      {:name => 'Threads_connected', :type => 'ce_gauge', :unit => 'Threads'},

      {:name => 'Seconds_Behind_Master', :type => 'ce_gauge', :unit => 'Seconds'},

      {:name => 'Created_tmp_disk_tables', :type => 'ce_counter', :unit => 'Tables'},

      {:name => 'Queries', :type => 'ce_counter', :unit => 'Queries'},
      {:name => 'Slow_queries', :type => 'ce_counter', :unit => 'Queries'},

      {:name => 'Bytes_received', :type => 'ce_counter', :unit => 'b'},
      {:name => 'Bytes_sent', :type => 'ce_counter', :unit => 'b'},

      {:name => 'Table_locks_immediate', :type => 'ce_counter', :unit => 'Locks'},
      {:name => 'Table_locks_waited', :type => 'ce_counter', :unit => 'Locks'},

      {:name => 'Processlist', :type => 'ce_gauge', :unit => 'Processes'},
      {:name => 'Processlist_Locked', :type => 'ce_gauge', :unit => 'Processes'},
      {:name => 'Processlist_Sending_data', :type => 'ce_gauge', :unit => 'Processes'},

      {:name => 'Com_select', :type => 'ce_counter', :unit => 'Commands'},
      {:name => 'Com_delete', :type => 'ce_counter', :unit => 'Commands'},
      {:name => 'Com_insert', :type => 'ce_counter', :unit => 'Commands'},
      {:name => 'Com_update', :type => 'ce_counter', :unit => 'Commands'},
      {:name => 'Com_replace', :type => 'ce_counter', :unit => 'Commands'},
  ]
end

#monitor(server) ⇒ Object 



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# File 'lib/bipbip/plugin/mysql.rb', line 39

def monitor(server)
  mysql = Mysql2::Client.new(
      :host => server['hostname'],
      :port => server['port'],
      :username => server['username'],
      :password => server['password']
  )

  stats = Hash.new(0)

  mysql.query('SHOW GLOBAL STATUS').each do |v|
    stats[v['Variable_name']] = v['Value'].to_i
  end

  mysql.query('SHOW VARIABLES').each do |v|
    stats[v['Variable_name']] = v['Value'].to_i
  end

  slave_status = mysql.query('SHOW SLAVE STATUS').first
  if slave_status
    stats['Seconds_Behind_Master'] = slave_status['Seconds_Behind_Master'].to_i
  end

  processlist =  mysql.query('SHOW PROCESSLIST')
  stats['Processlist'] = processlist.count
  processlist.each do |process|
    stats['Processlist_' + process['State'].sub(' ', '_')] += 1 unless process['State'].empty?
  end

  data = {}
  metrics_names.each do |key|
    data[key] = stats[key]
  end
  data
end