sanlock/fence_sanlockd.init

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#!/bin/sh
#
# fence_sanlockd - daemon for fence_sanlock agent
#
# chkconfig: 2345 20 80
# description: starts and stops fence_sanlockd
#
### BEGIN INIT INFO
# Provides: fence_sanlockd
# Required-Start: $time $syslog $remote_fs
# Required-Stop: $syslog
# Should-Start:
# Should-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts and stops fence_sanlockd
# Description: starts and stops fence_sanlockd
### END INIT INFO
prog="fence_sanlockd"
agent="fence_sanlock"
daemonrundir="/var/run/$prog"
agentrundir="/var/run/$agent"
runfile="$daemonrundir/$prog.pid"
fifofile="$daemonrundir/$prog.fifo"
lockfile="/var/lock/subsys/$prog"
exec="/usr/sbin/$prog"
FENCESANLOCKDOPTS="-w"
test -x $exec || { echo "$exec not installed";
if [ "$1" = "stop" ]; then exit 0;
else exit 5; fi; }
[ -f /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
. /etc/rc.status
rc_reset
case "$1" in
start)
# start wdmd and sanlock daemons if they aren't running
service wdmd status > /dev/null 2>&1 || service wdmd start
service sanlock status > /dev/null 2>&1 || service sanlock start
if [ ! -d $daemonrundir ]; then
install -d -m 775 $daemonrundir
[ -x /sbin/restorecon ] && restorecon $daemonrundir
fi
if [ ! -d $agentrundir ]; then
install -d -m 775 $agentrundir
[ -x /sbin/restorecon ] && restorecon $agentrundir
fi
if [ -e $runfile ]; then
if checkproc $exec ; then
echo -n "$prog is already running."
rc_status -v
rc_exit
else
echo "Removing stale PID file $runfile."
rm -f $runfile
fi
fi
echo -n "Starting $prog "
startproc $exec daemon $FENCESANLOCKDOPTS
rc_status -v
;;
stop)
agent_ps="$(ps ax -o pid,args | grep $agent | grep -v grep | grep -v $prog)"
[ -n "$agent_ps" ] && {
agent_pid="$(echo $agent_ps | awk '{print $1}')"
echo -n "cannot stop while $agent $agent_pid is running"
rc_failed 1
rc_status -v
rc_exit
}
# Ideally, we'd like a general way to check if anything
# needs fencing to continue running, but without that,
# check what we know, which is that dlm requires it.
if [ -d /sys/kernel/dlm/ ]; then
count="$(ls -A /sys/kernel/dlm/ | wc -l)"
if [ $count -ne 0 ]; then
echo -n "cannot stop while dlm lockspaces exist"
rc_failed 1
rc_status -v
rc_exit
fi
fi
if [ -d /sys/kernel/config/dlm/cluster ]; then
# this dir exists while dlm_controld is running
echo -n "cannot stop while dlm is running"
rc_failed 1
rc_status -v
rc_exit
fi
PID=$(pidofproc -p $runfile $prog)
# We have to use SIGHUP to mean stop because sanlock
# uses SIGTERM to mean that the lockspace failed.
echo -n $"Sending stop signal $prog ($PID)"
killproc -p $runfile $prog -HUP
retval=$?
if [ $retval -ne 0 ]; then
rc_failed 1
rc_status -v
rc_exit
fi
# fence_sanlockd won't see the SIGHUP if it's
# still waiting for config from the fifo, so
# send invalid config to the fifo to make it fail.
if [ -p $fifofile ]; then
echo "" > $fifofile
fi
echo -n $"Waiting for $prog ($PID) to stop"
timeout=10
while checkpid $PID; do
sleep 1
timeout=$((timeout - 1))
if [ "$timeout" -le 0 ]; then
echo -n "failed waiting for $prog ($PID) to stop"
rc_failed 1
rc_status -v
rc_exit
fi
done
rm -f $lockfile
# stop wdmd and sanlock daemons if they are running
service sanlock status > /dev/null 2>&1 && service sanlock stop
service wdmd status > /dev/null 2>&1 && service wdmd stop
rc_status -v
;;
try-restart)
$0 status >/dev/null && $0 restart
rc_status
;;
restart)
$0 stop
$0 start
rc_status
;;
reload)
killproc -HUP $exec
rc_status -v
;;
status)
echo -n "Checking status of $prog "
checkproc $exec
rc_status -v
;;
*)
echo "Usage: $0 {start|stop|restart|try-restart|reload|status}"
rc_failed 2
rc_exit
;;
esac
rc_exit