cronjob to monitor supervisor

Question

I'm using supervisor to monitor gunicorn. I'm aware that if supervisor stops working gunicorn stops get monitored. A possible solution is to invoke from the crontab a script to monitor and eventually re/start supervisor.

I'd really appreciate some example code on how a such script could be implemented.

Accepted Answer

0

You could write a small script and execute that via cron.

Something like:

#!/bin/bash
if ps -u <username> |grep -E '<process_name>$' > /dev/null
then
  echo "<process_name> is running."
else
  echo "starting <process>."
  <enter the command to start your process here>
fi

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answered 30 Sep '12, 15:26

bmeyer71 ♦♦
1.5k●3●6●13
accept rate: 33%

Thank you. Do you suggest to monitor supervisor or getting rid of supervisor and monitor gunicorn directly (and why)?

(30 Sep '12, 15:41) Guandalino

That's more of a personal and/or design preference. If that is what you are used to using, then there is no reason to change.

(30 Sep '12, 15:47) bmeyer71 ♦♦

It probably a matter of memory consumption, too. I read somewhere that supervisor can eat some memory on and off.

(30 Sep '12, 15:51) Guandalino

Yes, that will be something to consider as well. It may be a bit of trial and error to get what works best for you.

(30 Sep '12, 15:55) bmeyer71 ♦♦

There is a Q/A on serverfault about this choice. http://serverfault.com/a/433480/54680

(30 Sep '12, 17:32) Guandalino

cronjob to monitor supervisor

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