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#!/bin/sh
# -*- sh -*-
: << =cut
=head1 NAME
jenkins_jstats - Plugin to measure jstat from jenkins.war
=head1 AUTHOR
Contributed by Holger Levsen
=head1 LICENSE
GPLv2
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=cut
. $MUNIN_LIBDIR/plugins/plugin.sh
if [ "$1" = "autoconf" ]; then
echo yes
exit 0
fi
STATEFILE=$MUNIN_PLUGSTATE/$(basename $0)
# delete statefile if it's older than ${jenkins_update_interval} set in /etc/munin/plugin-conf.d/jenkins
if test $(find $STATEFILE -mmin +${jenkins_update_interval} 2>/dev/null) ; then
rm -f $STATEFILE
fi
if [ -f $STATEFILE ] && [ "$1" = "" ] ; then
cat $STATEFILE
exit 0
fi
JENKINS_PID=$(jps |grep jenkins.war|cut -d "j" -f1)
if [ "$JENKINS_PID" = "" ] ; then exit 0 ; fi
JOB_PREFIXES=$(for i in $(jstat -gc $JENKINS_PID | head -1) ; do echo -n "$i " ; done)
if [ "$1" = "config" ]; then
echo 'graph_title jenkins.war jstat -gc (mostly KB shown)'
echo 'graph_args --base 1000 -l 0 '
echo 'graph_scale no'
echo 'graph_vlabel jenkins.war jstat -gc'
echo 'graph_category jenkins'
draw=AREA
for PREFIX in $JOB_PREFIXES ; do
echo "jenkins_jstats_$PREFIX.label $PREFIX"
case $PREFIX in
S0C) INFO="Current survivor space 0 capacity (KB)" ;;
S1C) INFO="Current survivor space 1 capacity (KB)" ;;
S0U) INFO="Survivor space 0 utilization (KB)" ;;
S1U) INFO="Survivor space 1 utilization (KB)" ;;
EC) INFO="Current eden space capacity (KB)" ;;
EU) INFO="Eden space utilization (KB)" ;;
OC) INFO="Current old space capacity (KB)" ;;
OU) INFO="Old space utilization (KB)" ;;
PC) INFO="Current permanent space capacity (KB)" ;;
PU) INFO="Permanent space utilization (KB)" ;;
YGC) INFO="Number of young generation GC Events" ;;
YGCT) INFO="Young generation garbage collection time" ;;
FGC) INFO="Number of full GC events" ;;
FGCT) INFO="Full garbage collection time" ;;
GCT) INFO="Total garbage collection time" ;;
*) ;;
esac
echo "jenkins_jstats_$PREFIX.info $INFO"
done
exit 0
fi
COUNTER=1
VALUES=$(jstat -gc $JENKINS_PID | tail -1)
for PREFIX in $JOB_PREFIXES ; do
NR=$( (for i in $VALUES ; do echo $i ; done ) | head -$COUNTER | tail -1)
echo "jenkins_jstats_$PREFIX.value $NR" | tee -a $STATEFILE
COUNTER=$((COUNTER+1))
done
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