Class: Munin::PassengerMemoryStats

Inherits:
RequestLogAnalyzerPlugin show all
Defined in:
lib/munin/plugins/passenger_memory_stats.rb

Instance Attribute Summary

Attributes inherited from RequestLogAnalyzerPlugin

#debug, #environment, #graph_category, #passenger_memory_stats, #passenger_status

Instance Method Summary collapse

Methods inherited from RequestLogAnalyzerPlugin

#autoconf, #handle_arguments, #initialize, #require_command, #require_gem, #require_passenger_memory_stats, #require_passenger_status, #require_request_log_analyzer_gem, #require_tail_command, #require_yaml_gem, #run_command

Constructor Details

This class inherits a constructor from Munin::RequestLogAnalyzerPlugin

Instance Method Details

#config ⇒ Object 



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# File 'lib/munin/plugins/passenger_memory_stats.rb', line 11

def config
  memory_info = open('/proc/meminfo', 'r') do |lines|
    lines.inject({}) do |h, line|
      matched = line.match(/^([\w_\(\)]+):\s+(\d+)/)
      h[matched[1].to_sym] = matched[2].to_i * 1024
      h
    end
  end
  upper_limit = memory_info[:MemTotal]
  puts <<-CONFIG
graph_category #{graph_category}
graph_title Passenger memory stats
graph_vlabel Bytes
graph_args --base 1000 -l 0 --upper-limit #{upper_limit}
graph_info The memory used by passenger instances on this application server

memory.label memory
CONFIG
  exit 0
end

#ensure_configuration ⇒ Object 



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# File 'lib/munin/plugins/passenger_memory_stats.rb', line 5

def ensure_configuration
  require_passenger_memory_stats
  
  super
end

#run ⇒ Object

Collect the data debug Show debug information



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# File 'lib/munin/plugins/passenger_memory_stats.rb', line 34

def run
  stats = run_command(passenger_memory_stats, debug)

  #### Total private dirty RSS: 81.81 MB
  stats =~ /RSS:\s*([\d\.]+)\s*MB\Z/m
  memory = ($1.to_f * 1024 * 1024).to_i
  puts "memory.value #{memory}"
end