Re: monit5.5: Problem with process restart

[shiva rkreddy]

Great, it worked after adding the #!/bin/bash.

I've another question on whether monit can restart a process based on number of threads that are running?

For example:  A process has 10 threads to start with and then 7 of the threads have crashed. It needs 5 threads to be running to be considered healthy. If thread count is less than 5, can monit restart the whole process? 

Thanks

On Thu, Dec 6, 2012 at 8:04 AM, Martin Pala <address@hidden> wrote:

Monit executes the program using execv() ... it doesn't interpret it as script. You need to specify the interpreter at the script start, for example:

--8<--

#!/bin/bash

...

--8<--

Regards,

Martin

On Dec 6, 2012, at 2:59 PM, shiva rkreddy <address@hidden> wrote:

Thanks Martin.

With verbose mode, I was able to see that monit was complaining about missing "stop program" in the config file.

Got around the error and added a new script to handle start/stop of the process. Still, its failing to restart.

Here is corresponding log entry:

===

[CST Dec  6 08:39:41] debug    : 'whileTest' Error testing process id [8075] -- No such process

[CST Dec  6 08:39:41] error    : 'whileTest' process is not running

[CST Dec  6 08:39:41] info     : 'whileTest' trying to restart

[CST Dec  6 08:39:41] debug    : 'whileTest' Error testing process id [8075] -- No such process

[CST Dec  6 08:39:41] debug    : 'whileTest' Error testing process id [8075] -- No such process

[CST Dec  6 08:39:41] info     : 'whileTest' start: /tmp/monit.sh

[CST Dec  6 08:39:41] debug    : 'whileTest' Error testing process id [8075] -- No such process

[CST Dec  6 08:39:42] debug    : 'whileTest' Error testing process id [8075] -- No such process

[CST Dec  6 08:40:18] error    : 'whileTest' failed to start

===

Script:

RETVAL=0

modulename="/tmp/whileTest"

start() {

        cnt=$(ps -T | grep -c $modulename 2>/dev/null)

        if [ $cnt -le 1 ] ;  then

                $modulename &

        else

                echo "$modulename already running"

                echo

        fi

        return $RETVAL

}

stop() {

        pkill -f "$modulename "

}

case "$1" in

start)

        start

        ;;

stop)

        stop

        ;;

esac

exit $?