[users at bb.net] Simultaneous nightly schedulers not working after change from 0.8.12 to 0.9.0

[Neil Gilmore]

Good morning everyone,

We had a similar problem on our 0.9.0rc2 multi-master system.

Someone changed their builder's schedule to do their daily build at a 
different time (in this case, an hour later). This happened to coincide 
with another builder's schedule, and the way our master.cfg is 
structured, this put both builders on the same scheduler. The build did 
not get scheduled for a few nights in a row, and the user put it back on 
its original schedule.

At the time, I'd also thought about just putting it a minute off of the 
other one, just to have it on a different scheduler. I seem to recall 
also that the build that changed was on a different master than the 
original one that caused the scheduler to be created.

Neil Gilmore
grammatech.com

On 10/26/2016 8:09 AM, Tristram, Falk wrote:
>
> Hi all,
>
> I just discovered that some or our nightly scheduled builds are not 
> working any longer.
>
> There is not much information in the log files about the failure.
>
> The only special thing is that all these three schedulers start 
> exactly at the same time.
>
> I am going change the schedule, so the builds are started with a 
> minute delay each.
>
> Hope this helps.
>
> Best regards,
>
> Falk
>
> 2016-10-26 01:00:00+0200 [-] Got fatal Exception on DB
>
>         Traceback (most recent call last):
>
>         Failure: buildbot.db.buildrequests.AlreadyClaimedError:
>
> 2016-10-26 01:00:00+0200 [-] Got fatal Exception on DB
>
>         Traceback (most recent call last):
>
>         Failure: buildbot.db.buildrequests.AlreadyClaimedError:
>
> 2016-10-26 01:00:00+0200 [-] tried to complete 2 buildreqests, but 
> only completed 1
>
> 2016-10-26 01:00:00+0200 [-] Got fatal Exception on DB
>
>         Traceback (most recent call last):
>
>         Failure: buildbot.db.buildrequests.NotClaimedError:
>
> 2016-10-26 01:00:00+0200 [-] added buildset 338 to database
>
> 2016-10-26 01:00:00+0200 [-] tried to complete 2 buildreqests, but 
> only completed 1
>
> 2016-10-26 01:00:00+0200 [-] Got fatal Exception on DB
>
>         Traceback (most recent call last):
>
>         Failure: buildbot.db.buildrequests.NotClaimedError:
>
> 2016-10-26 01:00:00+0200 [-] added buildset 336 to database
>
> 2016-10-26 01:00:00+0200 [-] added buildset 337 to database
>
>
>
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