Class: Bipbip::Plugin::Mongodb

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

Instance Attribute Summary

Attributes inherited from Bipbip::Plugin

#config, #frequency, #metric_group, #name, #tags

Instance Method Summary collapse

Methods inherited from Bipbip::Plugin

factory, factory_from_plugin, #initialize, #metrics_names, #run, #source_identifier

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/mongodb.rb', line 5

def metrics_schema
  [
    { name: 'op_inserts', type: 'counter' },
    { name: 'op_queries', type: 'counter' },
    { name: 'op_updates', type: 'counter' },
    { name: 'op_deletes', type: 'counter' },
    { name: 'op_getmores', type: 'counter' },
    { name: 'op_commands', type: 'counter' },
    { name: 'connections_current', type: 'gauge' },
    { name: 'mem_resident', type: 'gauge', unit: 'MB' },
    { name: 'mem_mapped', type: 'gauge', unit: 'MB' },
    { name: 'mem_pagefaults', type: 'counter', unit: 'faults' },
    { name: 'globalLock_currentQueue', type: 'gauge' },
    { name: 'replication_lag', type: 'gauge', unit: 'Seconds' },
    { name: 'slow_queries_count', type: 'gauge_f', unit: 'Queries' },
    { name: 'slow_queries_time_avg', type: 'gauge_f', unit: 'Seconds' },
    { name: 'slow_queries_time_max', type: 'gauge_f', unit: 'Seconds' },
    { name: 'total_index_size', type: 'gauge', unit: 'MB' },
    { name: 'total_index_size_percentage_of_memory', type: 'gauge', unit: '%' }
  ]
end

#monitor ⇒ Object 



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# File 'lib/bipbip/plugin/mongodb.rb', line 27

def monitor
  status = fetch_server_status
  all_index_size = total_index_size

  data = {}

  if status['opcounters']
    data['op_inserts'] = status['opcounters']['insert'].to_i
    data['op_queries'] = status['opcounters']['query'].to_i
    data['op_updates'] = status['opcounters']['update'].to_i
    data['op_deletes'] = status['opcounters']['delete'].to_i
    data['op_getmores'] = status['opcounters']['getmore'].to_i
    data['op_commands'] = status['opcounters']['command'].to_i
  end
  if status['connections']
    data['connections_current'] = status['connections']['current'].to_i
  end
  if status['mem']
    data['mem_resident'] = status['mem']['resident'].to_i
    data['mem_mapped'] = status['mem']['mapped'].to_i
  end
  if status['extra_info']
    data['mem_pagefaults'] = status['extra_info']['page_faults'].to_i
  end
  if status['globalLock'] && status['globalLock']['currentQueue']
    data['globalLock_currentQueue'] = status['globalLock']['currentQueue']['total'].to_i
  end
  if status['repl'] && status['repl']['secondary'] == true
    data['replication_lag'] = replication_lag
  end

  if status['repl'] && status['repl']['ismaster'] == true
    slow_queries_status = fetch_slow_queries_status

    data['slow_queries_count'] = slow_queries_status['total']['count']
    data['slow_queries_time_avg'] = slow_queries_status['total']['time'].to_f / (slow_queries_status['total']['count'].to_f.nonzero? || 1)
    data['slow_queries_time_max'] = slow_queries_status['max']['time']
  end

  unless router?
    data['total_index_size'] = all_index_size / (1024 * 1024)
    data['total_index_size_percentage_of_memory'] = (all_index_size.to_f / total_system_memory.to_f) * 100
  end

  data
end