[users at bb.net] Buildbot Hanging

[Chris Spencer]

OS: Ubuntu 16.04
Twisted: 17.1.0
Buildbot: 0.9.4



On Thu, Apr 6, 2017 at 10:29 AM, Dan Kegel <dank at kegel.com> wrote:

> On Thu, Apr 6, 2017 at 6:54 AM, Chris Spencer <chrisspen at gmail.com> wrote:
> > I'm continuing to see some strange issues with Buildbot hanging. I tried
> > using a crontab to see if the worker or master had crashed and restart
> them,
> > but it looks like they're still running just fine. Buildbot's even
> showing
> > pending builds, but it's not ignoring them.
> >
> > If I manually restart them, it immediately begins working again, but I
> have
> > no way to detect it being hung except to login and check if there are
> > pending builds with nothing being processed.
> >
> > How do I diagnose and fix this?
>
> I know the pain.  (On cygwin, with a very old twisted, I'm
> seeing a hang very often at the end of the git step; twisted
> is failing to notice its child has finished.  I have also seen
> hangs on Linux, but not that one, and much less often.)
>
> What OS, and versions of twisted and buildbot?
>
> Can you get a backtrace from the hung worker?
>
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