Re: [monit] Check if a process is running

[Eric Pailleau]

Jan-Henrik Haukeland a écrit :
> On 25. mai. 2009, at 09.35, Eric Pailleau wrote:
>
> > A solution with a wrapper script is given, but be aware that in 
> > pidfile is the PID of the wrapper script : if your program crashe (and 
> > not the wrapper), monit will still see a living PID and do nothing.
>
> Actually not since the wrapper script uses exec, the program started 
> will take "over" the process of the script.

yes, you are right, I did not saw it at first sight.

the only 'critic' I could give is that presence of pidfile is not tested
on 'stop' command.

it would better to do

test -s /var/run/xyz.pid && kill `cat /var/run/xyz.pid`

'test -s' test that the file exists and size is greater than zero.