diff --git a/plugins/other/mongrel_process_memory b/plugins/other/mongrel_process_memory new file mode 100755 index 00000000..5966655d --- /dev/null +++ b/plugins/other/mongrel_process_memory @@ -0,0 +1,100 @@ +#!/usr/bin/env ruby +# +# mongrel_process_memory - A munin plugin to monitor memory size of +# each individual mongrel process +# Copyright (C) 2007 Ben VandenBos and Avvo, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 +# as published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +# +# Author: Ben VandenBos +# Contributors: Adam Jacob () +# Ryan Woodrum +# +#%# family=auto +#%# capabilities=autoconf + +module Munin + class MongrelProcessMemory + + def run + h = get_pids() + ps_output = "" + #I have no doubt that this is a terrible way of doing this. + h.each do |k, v| + ps_output = ps_output + `ps --no-heading l #{k}` + end + + if ps_output + port_list = Hash.new + ps_output.each_line do |l| + if l =~ /-p (\d+)/ + port = $1 + l_ary = l.split(/\s+/) + if l_ary.length > 6 + port_list[port] = l_ary[7].to_i * 1024 + end + end + end + port_list.sort.each do |port| + puts "mongrel_#{port[0]}.value #{port[1]}" + end + + end + end + + def get_pids + h = Hash.new + pids = [] + pids = `pgrep mongrel_rails` + pids.each { |p| + l = `ps #{p}` + l =~ /-p (\d+)/ + h[p] = $1 + } + h + end + + def autoconf + pids.length > 0 + end + + end +end + +mpm = Munin::MongrelProcessMemory.new + +case ARGV[0] +when "config" + puts "graph_title Mongrel Memory" + puts "graph_vlabel RSS" + puts "graph_category Memory" + puts "graph_args --base 1024 -l 0" + puts "graph_scale yes" + puts "graph_info Tracks the size of individual mongrel processes" + mpm.get_pids.values.sort.each do |port| + puts "mongrel_#{port}.label mongrel_#{port}" + puts "mongrel_#{port}.info Process memory" + puts "mongrel_#{port}.type GAUGE" + puts "mongrel_#{port}.min 0" + end +when "autoconf" + if mpm.autoconf + puts "yes" + exit 0 + end + puts "no" + exit 1 +else + mpm.run +end