Hi Twisted Folks,
We use monit to start and stop our twistd daemons. I have set up monit to
restart some of the daemons when they grow too large. I use the following
command:
/bin/bash -c 'kill -s SIGTERM `cat /var/run/sensrtunw/sensrtunw.pid`'
Occasionally, this is unsuccessful in killing the twistd process, and I
need to use a SIGKILL manually as a last resort.
Any ideas why?
I believe the SIGTERM method will do a clean shutdown, calling the
appropriate stopService methods. This would be the preferred method.
The only thing that comes to mind is that the process does have a very few
threads ... I believe these are the database connections. Could there be a
race condition that prevents twistd from stopping? Shall I simply use
SIGKILL in all cases?
Suggestions or comments appreciated.
-Tom
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