3
edits
Changes
→munin plugin: Added plugin from Jan (http://forum.openvz.org/index.php?t=msg&goto=15122)
This is not too performant but should do and the graphs are much
more readable then the first solution.
== Another 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:
1. "exit 0" in the "config" block
2. Replaced "vals=($str); echo ${vals[0]}" with "echo ${str%% *}" (the former was causing problems I don't remember anymore)
<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]}"
#
# 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'`
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
fi
fi
if [ "$1" = "suggest" ]; then
if [ -r /proc/bc/0/resources ]; then
cat /proc/bc/0/resources | while read str; do
# Print everything before " "
echo ${str%% *}
done
exit 0
else
exit 1
fi
fi
if [ ! -f /proc/bc/$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 $URL
fi
done
done
exit 0
fi;
cat /proc/bc/$VEID/resources | while read name value stuff ; do
for statname in $STATS; do
if [ "$name" = "$statname" ]; then
echo $name".value "$value;
fi
done
done
</source>
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 \
numfile
do
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 >> $FILE
done
done
# remove no longer deserved links (ie. links pointing to machines
# which were destroyed or stoped)
find -type l -name vebc_\* | sed "s/\.\///" | while read LN; do
if grep ^$LN$ $FILE >/dev/null; then
true
else
rm $LN
fi
done
rm $FILE
</source>
