[Buildbot-devel] Getting buildbot to kill all subprocesses

[Uma Sridharan]

So the only workaround is using twisted's spawnprocess? When buildbot starts
a process, does twisted set *setpgrp* while buildbot does os.kill when the
process is killed? I am confused as to whether buildbot or twisted does the
kill. And the exising way of killing processes should work if background
processes are not spawned?

On Fri, Mar 5, 2010 at 1:04 PM, <exarkun at twistedmatrix.com> wrote:

> On 08:52 pm, chris at atlee.ca wrote:
> >buildbot should probably be doing something like setpgrp when it
> >starts a process so that the entire process group can be killed
> >properly.
>
> Twisted's spawnProcess API makes something like this available (it
> actually does a setsid, but same idea).  Unfortunately it forces you to
> use a pty if you want this, which isn't so cool.  I'd love it if these
> two features were available independently of each other.  Too many other
> things on my plate these days, though.
>
> Also, there's the obscure case where buildbot runs a process that runs
> processes that fiddle with their process group, and that would break
> this feature.  Not many things should be doing this, so it's probably
> not a big deal, but it's worth keeping in mind that it's not foolproof.
>
> Jean-Paul
>
>
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