- have some dirs

plugins/thin/thin_memory

@@ -0,0 +1,98 @@
+#!/usr/bin/env ruby
+# thin_memory - A munin plugin for Linux to monitor memory size of each individual thin process
+#
+# For Linux ONLY !
+# DOES NOT WORK on OSX, Solaris or BSD.
+# only linux, because this script relies on proc filesystem
+# 
+# Original author: 
+#   Frederico de Souza Araujo - fred.the.master@gmail.com
+#   http://www.frederico-araujo.com
+#
+# Usurper:
+#   Adam Michel - elfurbe@furbism.com
+#   http://www.furbism.com
+#
+# Originally 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()
+      pids.sort.each do |pid|
+        rss = (pid_rss(pid).to_i)/1024
+        puts "thin_#{pid}.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 = `pgrep thin`.split
+    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|
+    puts "thin_#{pid}.label thin_#{pid}"
+    puts "thin_#{pid}.info Process memory"
+    puts "thin_#{pid}.type GAUGE"
+    puts "thin_#{pid}.min 0"
+  end
+when "autoconf"
+  if mpm.autoconf
+    puts "yes"
+    exit 0
+  end
+  puts "no"
+  exit 1
+else
+  mpm.run
+end