Changes
Undo revision 10871 by 217.195.167.74 (Talk)
[http://exchange.munin-monitoring.org/plugins/openvz_/details A second is also available via the Munin plugin exchange] which tracks beancounter values. Additionally, there are several plugins available on this page to monitor beancounter values in [http://munin.projects.linpro.no/ Munin].The third one tries to combine the other two. (FIXME, maybe these should live in the Munin Exchange too?) = "Simple" munin plugin = The plugin listed below grabs all the beancounters' values. <source lang="bash">#!/bin/sh
#
# plugin to monitor OpenVZ bean counters.
if [ "$1" = "suggest" ]; then
if [ -r /proc/bc/0/resources ]; then
cat /proc/bc/0/resources |
while read str; do
vals=($str)
echo ${vals[0]}
done
exit 0
else
fi
fi
if [ "$1" = "config" ]; then
# echo "graph_order down up"
echo "graph_title $ATTR beancounter for VE'scontainers"
echo 'graph_category system'
echo "graph_info 'VE bean counters Containers beancounters info'"
for VEID CTID in `ls -d1 /proc/bc/???`; do id=`basename $VEIDCTID` grep $ATTR $VEIDCTID/resources |
while read str; do
fi;
for CTID in `ls -d1 /proc/bc/???`; do
id=`basename $CTID`
grep $ATTR $CTID/resources |
while read str; do
vals=($str)
name=${vals[0]}
echo "$id.value ${vals[1]}"
done
done
</source>
while read str; do
vals=($str)
done
exit 0
else
exit 1
fi
fi
if [ "$1" = "config" ]; then
# echo "graph_order down up"
echo "graph_title beancounter for CT$ATTR: $STATS"
echo "graph_category CT$ATTR"
echo "graph_info 'Container bean counters info'"
readme="false"
cat /proc/user_beancounters | while read myid stuff; do
line=""
if [ "$myid" == "$ATTR:" ]; then
readme="true"
line="$stuff"
echo $line
else
loid=`echo $myid | sed -e 's/.*:/:/'`
if [ "$loid" == ":" ]; then
readme="false"
fi
if [ "$readme" == "true" ]; then
line="$myid $stuff"
echo $line
fi
fi
done | while read name value top warn max; do
okname="dummy"
for statname in $STATS; do
if [ "$name" == "$statname" ]; then
okname=$name
fi
done
if [ "$okname" != "dummy" ]; then
echo $okname.label $name
echo $okname.warning $warn
echo $okname.critical $max
fi
done
exit 0
fi;
readme="false"cat /proc/user_beancounters | while read myid stuff; do line="" if [ "$myid" == "$ATTR:" ]; then readme="true" line="$stuff" echo $line else loid=`echo $myid | sed -e 's/.*:/:/'` if [ "$loid" == ":" ]; then readme="false" fi if [ "$readme" == "true" ]; then line="$myid $stuff" echo $line fi fidone | while read name value x; do okname="dummy" for statname in $STATS; do if [ "$name" == "$statname" ]; then okname=$name fi done if [ "$okname" != "dummy" ]; then echo $okname.value $value fi done</source> This is not too performant but should do and the graphs are muchmore readable then the first solution. = Extended plugin from Jan Tomasek =* Jan has posted another plugin on http://forum.openvz.org/index.php?t=msg&goto=15122, where I've fixed two things:*# "exit 0" in the "config" block*# Replaced "vals=($str); echo ${vals[0]}" with "echo ${str%% *}" (the former was causing problems I don't remember anymore)* v1.3.2 (2008/08/09)*# If only 1 variable is graphed, also display maxheld, barrier and limit<source lang="bash">#!/bin/sh## Munin's plugin to monitor OpenVZ bean counters.## $Log$# Revision 1.3 2007/07/19 12:57:00 Jan Tomasek <jan@tomasek.cz># * rewrited to work with /proc/bc/<VEID>/resources instead of# /proc/user_beancounters, that simplified code and result# is also bit faster.# * added references to OpenVZ wiki# Revision 1.3.1 2008/05/13 01:26:00 Daniel Hahler <http://daniel.hahler.de/># * Minor fixes# - "exit 0" in "config" block# - Use "echo ${str%% *}" in "suggest", instead of "vals=($str); echo ${vals[0]}"## Revision 1.3.2 2008/08/09 12:30:00 Christian Rubbert <crubbert@xrc.de># * Feature# - If only 1 variable is graphed, also display maxheld, barrier and limit## Original revision taken from:# http://wiki.openvz.org/Monitoring_openvz_resources_using_munin##%# family=auto#%# capabilities=autoconf suggest VEID=`basename $0 | sed -e 's/^vebc_.*_//'`;STATS=`basename $0 | sed -e 's/^vebc_//' -e 's/_[0-9]*$//' -e 's/_/ /g'`x=0; STATSCNT=`for i in $STATS; do x=$[$x+1]; done; echo $x` if [ "$1" = "autoconf" ]; then if [ -r /proc/bc/0/resources ]; then echo yes exit 0 else echo "no (/proc/bc/0/resources not found)" exit 1 fifi if [ "$1" = "suggest" ]; then if [ -r /proc/bc/0/resources ]; then cat /proc/bc/0/resources | while read str; do # Print everything before " " echo ${str%% *} done exit 0 else exit 1 fifi if [ ! -f /proc/bc/$VEID/resources ]; then exit 0;fi if [ "$1" = "config" ]; then #echo "graph_order down up" echo "graph_title VE$VEID: $STATS" echo "graph_vlabel bean counters" echo "graph_category VE$VEID" # Note on URLs. General graph info is by munin version 1.2.5 # accepted even with HTML code. But for value.info it escapes URL, # I expect that authors of munin will note that in future and put # escaping even for graph.info. echo "graph_info VE bean counters info. Documentation of the OpenVZ resource management is located at <a href=\"http://wiki.openvz.org/UBC\">http://wiki.openvz.org/UBC</a>." cat /proc/bc/$VEID/resources | while read name value top warn max stuff ; do for statname in $STATS; do if [ "$name" = "$statname" ]; then URL="http://wiki.openvz.org/$name" if [ "$warn" = "0" ]; then warn=$max fi echo $name.label $name echo $name.warning $warn echo $name.critical $max echo $name.info Description of this resource is located at $URL fi done done if [ "$STATSCNT" = "1" ]; then echo maxheld.label Maxheld echo maxheld.draw LINE2 echo maxheld.info Maximum value echo barrier.label Barrier echo barrier.draw LINE2 echo barrier.info Barrier echo limit.label Limit echo limit.draw LINE2 echo limit.info Limit fi exit 0fi; cat /proc/bc/$VEID/resources | while read name value top warn max stuff ; do for statname in $STATS; do if [ "$name" = "$statname" ]; then echo $name".value "$value; if [ "$STATSCNT" = "1" ]; then echo maxheld.value $top echo barrier.value $warn echo limit.value $max fi fi donedone</source> = Munin plugin setup === Run as root ==Please note, you have to configure plugin to run as root. Therefore, add the following to /etc/munin/plugin-conf.d/ somewhere: [vebc*] user root == Installing the plugins ==There's a single plugin file, which can be installed several times and can put several values into the same graph.You should install the plugin from above to e.g. <code>/usr/local/share/munin/plugins/vebc_</code> and then put symlinks to there from /etc/munin/plugins.The following script allows you to handle this easily:To install this, you can use the following script:<source lang="bash">#!/bin/bash FILE=`mktemp /tmp/ln-vebc-XXXXXX` cd /etc/munin/plugins for resources in kmemsize \ lockedpages_privvmpages_shmpages_physpages_vmguarpages_oomguarpages \ numproc \ numtcpsock_numflock_numpty_numsiginfo_numothersock_numiptent \ tcpsndbuf_tcprcvbuf_othersockbuf_dgramrcvbuf \ dcachesize \ numfiledo for VE in 0 `/usr/sbin/vzlist | sed "s/^ *//" |grep '^[0-9]' | cut -f 1 -d " "` ; do ln -sf /usr/local/share/munin/plugins/vebc_ "vebc_"$resources"_"$VE echo "vebc_"$resources"_"$VE >> $FILE donedone # remove no longer deserved links (ie. links pointing to machines# which were destroyed or stoped) find -type l -name vebc_\* | sed "s/\.\///" | while read LN; do if grep ^$LN$ $FILE >/dev/null; then true else rm $LN fidone rm $FILE</source> = Alternative: Using vzlist =This simple script will generate an overview of the requested stat from all VE's.When using vzlist your saved from any changes to the beancounters. == Usage ==Simply append the variable you want to monitor:<source lang="bash">ln -s /usr/share/munin/plugins/openvz_ /etc/munin/plugins/openvz_physpages</source> <source lang="bash">#!/bin/sh## Munin's plugin to monitor OpenVZ bean counters.## $Log$# 2008/08/14 Rene Weselowski <http://www.dead.at>##%# family=auto#%# capabilities=autoconf