diff --git a/plugins/other/vserver_loadavg b/plugins/other/vserver_loadavg new file mode 100755 index 00000000..43ce5e1a --- /dev/null +++ b/plugins/other/vserver_loadavg @@ -0,0 +1,123 @@ +#!/bin/sh +# +# Copyright (C) 2007 Andrei Morgan +# Copyright (C) 2008 Micah Anderson +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; version 2 dated June, +# 1991. +# +# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +# Graph Vserver load average +# +# Configuration variables +# vservers - specify the vservers to include in the graph (default: all) +# +# NOTE: If no configuration variables are set, the defaults will be used + +# Example /etc/munin/plugin-conf.d/munin-node +# +# The following monitors the load average for vservers 1 and 3: +# +# [vserver_loadavg] +# user root +# env.vservers vserver1 vserver3 + +# Changelog +# version 0.1 - 2007 June 26 +# Andrei Morgan +# - initial author, based upon vserver_resources by Holger Levsen and +# Micah Anderson, and upon the examples in the munin wiki. +# version 0.2 - 2008 July 7 +# Micah Anderson +# - fix cvirt vs. nsproxy issue with newer kernels by adding $NAMELOC which +# is aware of VCI_SPACES (> 2.6.19) as well as the older version + +# If run with the "autoconf"-parameter, give our opinion on whether we +# should be run on this system or not. This is optional, and only used by +# munin-config. In the case of this plugin, we should most probably +# always be included whwn there is a vserver kernel. + +if [ "$1" = "autoconf" ]; then + echo yes + exit 0 +fi + + +# if vservers are specified, use them; the default is to use all. +VSERVERS="$vservers" + +INFO=(`sed 's/.*:\t//' /proc/virtual/info 2>/dev/null || echo ''`) +KCIN="$[ 16#${INFO[2]} ]"; + +# If this is 1, then VCI_SPACES is present in the kernel (new in 2.6.19) +if [ $[ (KCIN >> 10) & 1 ] -eq 1 ] +then + NAMELOC="nsproxy" +else + NAMELOC="cvirt" +fi + +if [ -z "$VSERVERS" ] ; then + XIDS=`find /proc/virtual/* -type d -exec basename {} \;` +else + # it's really more performant to specify vservers by ids or not at all + XIDS="" + for i in $VSERVERS ; do + if [ -d /proc/virtual/$i ] ; then + XIDS="${XIDS}${i} " + else + for j in `find /proc/virtual/* -type d -exec basename {} \;` ; do + if [ "$i" = "`cat /proc/virtual/$j/$NAMELOC |grep NodeName |cut -f2`" ] ; then + XIDS="${XIDS}${j} " + fi + done + fi + done +fi + +# If run with the "config"-parameter, give out information on how the +# graphs should look. +if [ "$1" = "config" ]; then + # The title of the graph + echo 'graph_title loadavg of vserver' + # Arguments to "rrdtool graph". In this case, tell it that the + # lower limit of the graph is '0', and that 1k=1000 (not 1024) + echo 'graph_args --base 1000 -l 0' + # We want Cur/Min/Avg/Max unscaled (i.e. 0.42 load instead of + # 420 milliload) + echo 'graph_scale no' + # The Y-axis label + echo 'graph_vlabel loadavg' + # graph information for the main table + echo 'graph_info Shows 5-minute load average per vserver.' + # Graph category. Defaults to 'other' + echo 'graph_category vserver' + for xid in $XIDS ; do + # Specify the vservers + LABEL=`cat /proc/virtual/$xid/$NAMELOC |grep NodeName |cut -f2` + NAME=`echo $LABEL | cut -d. -f1 | tr '-' '_'` + echo "$NAME.label $LABEL: load average" + echo "$NAME.info $NAME average load for the past 5 minutes" + done + # Last, if run with the "config"-parameter, quit here (don't + # display any data) + exit 0 +fi + +for xid in $XIDS ; do + LABEL=`cat /proc/virtual/$xid/$NAMELOC |grep NodeName |cut -f2` + NAME=`echo $LABEL | cut -d. -f1 | tr '-' '_'` + echo -n "$NAME.value "; + cat /proc/virtual/$xid/cvirt | grep loadavg: | cut -d' ' -f2 +done +