Created
May 20, 2011 13:43
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Nagios Passenger memory check
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#!/usr/local/bin/ruby | |
require 'rubygems' | |
gem 'passenger' | |
require 'phusion_passenger' | |
require 'phusion_passenger/platform_info' | |
require 'phusion_passenger/admin_tools/memory_stats' | |
require 'optparse' | |
include PhusionPassenger | |
def pluralize(str, count) | |
if count > 1 | |
"#{str}s" | |
else | |
str | |
end | |
end | |
def singularize(str, count) | |
if count > 1 | |
str | |
else | |
"#{str}s" | |
end | |
end | |
options = {:warning_threshold => 80, :critical_threshold => 100} | |
OptionParser.new do |opts| | |
opts.banner = "Usage: check_passenger [options]" | |
opts.on("-w N", "--warning", "Warning threshold in MB") do |w| | |
options[:warning_threshold] = w.to_i | |
end | |
opts.on("-c N", "--critical", "Critical threshold in MB") do |c| | |
options[:critical_threshold] = c.to_i | |
end | |
end.parse! | |
procs = AdminTools::MemoryStats.new.passenger_processes | |
msg, exit_code = if procs.find { |p| p.rss > options[:critical_threshold]*1000 } | |
count = procs.count {|p|p.rss > options[:critical_threshold]*1000 } | |
["CRITICAL - #{count} #{pluralize('instance', count)} #{singularize('exceed', count)} #{options[:critical_threshold]} MB", 2] | |
elsif procs.find {|p| p.rss > options[:warning_threshold]*1000 } | |
count = procs.count {|p|p.rss > options[:warning_threshold]*1000 } | |
["WARNING - #{count} #{pluralize('instance', count)} #{singularize('exceed', count)} #{options[:warning_threshold]} MB", 1] | |
else | |
["OK - No processes exceed #{options[:warning_threshold]} MB", 0] | |
end | |
puts "PASSENGER #{msg}" | |
exit exit_code |
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