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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