glusterfsd_throughput

#!/bin/sh
#
# Plugin created by Adrian Rollett, based on nfsd plugin
#%# family=auto
#%# capabilities=autoconf

DAEMON='glusterfsd'
CLIENTFS='/gluster/gluster'
LOGFILE='/var/log/glusterfs/glusterfsd.vol.log'

throughput='BytesRead BytesWritten'

if [ "$1" = "autoconf" ]; then
	if ps -C "$DAEMON" >/dev/null; then
		echo yes
		exit 0
	else
		echo "no (no $DAEMON)"
		exit 1
	fi
fi

if [ "$1" = "config" ]; then

	echo 'graph_title GlusterFS Server Throughput'
	echo 'graph_args --base 1000 -l 0'
	echo 'graph_vlabel bytes / ${graph_period}'
	echo 'graph_total total'
	echo 'graph_category GlusterFS Throughput'
	for a in $throughput ; do echo "$a.label $a" ; echo "$a.type DERIVE"; echo "$a.min 0"; done
	exit 0
fi

if ps -C "$DAEMON" >/dev/null;
then 
        TMPFILE=`tempfile`
	# The io-debug xlator requires us to set a file xattr in order to dump stats.
	setfattr -n trusted.io-stats-dump $CLIENTFS
	# Now we immediately get the last 200 lines of the server's logfile. This should
	# almost certainly get the stats we need.
	tail -200 $LOGFILE > $TMPFILE
	FIRSTLINE=`sed -n '/=== Cumulative stats ===/ =' $TMPFILE|tail -1`
	for a in $throughput; do
		echo -n "$a.value "
		tail -n +$FIRSTLINE $TMPFILE | grep "${a} : [0-9]\+$" | head -1 | awk '{print $NF}'
	done
	rm $TMPFILE
else
	echo "Cannot read $DAEMON" >&2
	exit -1
fi