[users at bb.net] Buildbot Hanging

[Chris Spencer]

Buildbot shows pending builds, but never begins running the build, almost
like the worker has crashed. However, the worker's twistd.log shows it's
still running.

I also thought that my experimental nextBuild callback was the cause of the
issue, so I removed it and restarted buildbot. However, the problem existed
before I added my callback, and the problem remains after I removed it.

On Thu, Apr 6, 2017 at 1:19 PM, Pierre Tardy <tardyp at gmail.com> wrote:

> Hi Chris. I am not sure exactly what you mean as hang. Could you please
> describe me what happens and what should happen instead for you?
>
> I see you are also playing with nextBuild in another thread. Beware that a
> crashing or misbehaving nextBuild can easily make buildbot stop creating
> new build.
>
> Le jeu. 6 avr. 2017 16:44, Chris Spencer <chrisspen at gmail.com> a écrit :
>
>> 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?
>>
>>
>> _______________________________________________
>> users mailing list
>> users at buildbot.net
>> https://lists.buildbot.net/mailman/listinfo/users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.buildbot.net/pipermail/users/attachments/20170406/43e0d060/attachment.html>