A year ago I wrote a little bash-script to use as a watchdog for my ASSP’s.
Whenever I have a buggy or ill-responding ASSP-script, it is easily identified
by its occasional restarting (of which I get an email).
It is working quite good, but I want to improve it.
The watchdog uses “service <assp-service> start” and “service <assp-service>
stop” to control the process.
Sometimes, on a high-load server, the command “service <assp-service> stop” is
not able to stop the process.
That’s why I want to use “kill -9” to remove the process from memory.
Is this good practice or bad practice?
Furthermore I want to know which script to modify.
I can modify my watchdog, the “init.d script” or the “stop” script.
The easiest place to modify was the “stop” script, which I did.
Anyone having tips or comments?
# cd /opt/ASSP/
# cat stop
#!/bin/sh
if [ "$1" = "" ]
then
BASE=/opt/ASSP;
else
BASE=$1;
fi
export BASE
echo Stopping ASSP Anti-SPAM Proxy server in $BASE
pidfile=$BASE/pid
kill `cat $pidfile`
# wait for ASSP to quit gracefully
tries=""
while [ -e $pidfile ]; do
if [ "x$tries" == "x......." ]; then
break
fi
sleep 2
tries=".$tries"
done
if [ -e $pidfile ]; then
echo "ASSP is still running, I will remove it from memory"
kill -9 `cat $pidfile`
fi-------------------------------------------------------------------------
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