ltm unit running at 100% after upgrade to 11.5.3

yes ,

we were using an external monitor.This monitor was causing the cpu to rise to nearby 100% .I've copied it hereunder but basically it's a curl command.

Removing the monitor caused cpu to drop to normal values. Originally we used monitor with interval of 5 seconds & timeout of 16. this monitor was present multiple times in process queue .

We now use it a interval of 1minute & timeout of 3 minutes. But even then we see elevated level of cpu , but it's under control.

So no real problem with upgrade .but consequence of external monitor used (external monitor script running previously in version 11.2.1 without issues) :

IP=

echo ${1} | sed 's/::ffff://'

PORT=${2}

MONITOR_NAME=external-http-udp-healthcheck

PIDFILE="/var/run/$MONITOR_NAME.${IP}_${PORT}.pid"

if [ -f $PIDFILE ]

then

 echo "EAV exceeded runtime needed to kill ${IP}:${PORT}" | logger -p local0.error

 kill -9 `cat $PIDFILE` > /dev/null 2>&1

fi

echo "$$" > $PIDFILE

curl -fNs http://${IP}/healthcheck/udp.php?port=${PORT} | grep -i "UP" 2>&1 > /dev/null

if [ $? -eq 0 ]

then

rm -f $PIDFILE

echo "UP"

else

rm -f $PIDFILE

fi

exit