On 05/07/12 14:40, Evgen Koval wrote:
> Hello !
> I have a script written in Python, which spawns some child processes and
> manages them then. One of it's tasks is to terminate all child processes and
> wait until all of them died.
> I use Upstart to run this script, here is my .conf:
> **********
> exec python /usr/scraper/scraper/manager.py
> kill timeout 20
> **********
>
> The problem is that when I type "stop <task>", Upstart sends stop signal not
> to only master process, but all child processes as well.
> This is not very good for me, because I'd like manager to control child
> processes.
>
> The question is:
> Is it possible to tell Upstart not to touch child processes and send TERM
> signal only to master process ?
>
> Thanks
>
> Eugene
>
>
Hi Eugene,
You can't change the fact that Upstart will kill the entire process group the
parent PID belongs to.
However, using a 'pre-stop' stanza you could arrange for the parent to shut
down its children first:
http://upstart.ubuntu.com/cookbook/#pre-stop
Kind regards,
James
--
James Hunt
____________________________________
http://upstart.ubuntu.com/cookbook
http://upstart.ubuntu.com/cookbook/upstart_cookbook.pdf
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