Class: Bipbip::Plugin::FastcgiPhpApc

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

Instance Attribute Summary

Attributes inherited from Bipbip::Plugin

#config, #metric_group, #name, #pid

Instance Method Summary collapse

Methods inherited from Bipbip::Plugin

factory, #frequency, #initialize, #interrupt, #interrupted?, #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/fastcgi_php_apc.rb', line 5

def metrics_schema
  [
      {:name => 'opcode_mem_size', :type => 'gauge', :unit => 'b'},
      {:name => 'user_mem_size', :type => 'gauge', :unit => 'b'},
  ]
end

#monitor ⇒ Object 



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# File 'lib/bipbip/plugin/fastcgi_php_apc.rb', line 12

def monitor
  authority = config['host'].to_s + ':' + config['port'].to_s
  path = File.join(Bipbip::Helper.data_path, 'apc-status.php')

  env_backup = ENV.to_hash
  ENV['REQUEST_METHOD'] = 'GET'
  ENV['SCRIPT_NAME'] = File.basename(path)
  ENV['SCRIPT_FILENAME'] = path
  response = `cgi-fcgi -bind -connect #{authority.shellescape} 2>&1`
  ENV.replace(env_backup)

  body = response.split(/\r?\n\r?\n/)[1]
  raise "FastCGI response has no body: #{response}" unless body
  stats = JSON.parse(body)

  {:opcode_mem_size => stats['opcode_mem_size'].to_i, :user_mem_size => stats['user_mem_size'].to_i}
end