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Initial version

This commit is contained in:
Frederico de Souza Araujo 2009-06-18 09:56:18 +02:00 committed by Steve Schnepp
parent 9aa461b705
commit 631be558cc

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plugins/other/thin_memory Executable file
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#!/usr/bin/env ruby
# thin_memory - A munin plugin for Linux to monitor memory size of
# each individual thin process
# I havent tested on OSX or Solaris. Works great on Linux (gentoo)
# Author:
# Frederico de Souza Araujo - fred.the.master@gmail.com
# http://www.frederico-araujo.com
#
# Based on:
# thin_process_memory -
# A munin plugin to monitor memory size of
# each individual thin process
# by 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.
#
#
#%# family=auto
#%# capabilities=autoconf
module Munin
class ThinProcessMemory
# run main method
def run
pids = get_pids()
port_list = Hash.new
pids.sort.each do |pid, port|
rss = (pid_rss(pid).to_i)/1024
puts "thin_#{port}.value #{rss}"
end
end
# only get the memory for each pid
def pid_rss(pid)
res = `grep "VmRSS" /proc/#{pid}/status`.split[1]
if res.match("cannot access")
return nil
else
return res
end
end
# fetch all pids that match thin
def get_pids
pids_ports = []
pids = `pgrep thin`.split
pids.each do |t|
# only works for linux i'm affraid
# using lsof (list open files)
port = `lsof -p #{t} | grep LISTEN`.split[8]
port = port.split(":")[1]
pids_ports << [t,port]
end
pids_ports
end
def autoconf
get_pids().length > 0
end
end
end
mpm = Munin::ThinProcessMemory.new
case ARGV[0]
when "config"
puts "graph_title Thin Memory"
puts "graph_vlabel RSS"
puts "graph_category Thin"
puts "graph_args --base 1024 -l 0"
puts "graph_scale yes"
puts "graph_info Tracks the size of individual thin processes"
mpm.get_pids.sort.each do |pid,port|
puts "thin_#{port}.label thin_#{port}"
puts "thin_#{port}.info Process memory"
puts "thin_#{port}.type GAUGE"
puts "thin_#{port}.min 0"
end
when "autoconf"
if mpm.autoconf
puts "yes"
exit 0
end
puts "no"
exit 1
else
mpm.run
end