[Buildbot-devel] Locking until buildbot idle?

[Axel Hecht]

I have a scheduler that only submits a buildset when the previous
buildset is completely done. I guess you could do something similar to
trigger your build only when there are no buildsets pending or so.
Depending on what you do, you'd need to subclass all schedulers to
keep new buildsets coming in while your exclusive build is running.
The essential trick was to overload buildSetFinished and fireTimer,
and to block fireTimer until buildSetFinished is happy.

The code is in-the-works, that is, I worked on it today to get it
closer to something I can attach as a patch, probably on
https://bugzilla.mozilla.org/show_bug.cgi?id=379990 at first.

Axel

2007/5/10, Geoff Wedig <gwedig at d2.com>:
> I would like to add a build which only runs if nothing else is running
> on any of the slaves.  My original thought had been to use a lock on all
> steps, but I'm not quite sure it's possible.  I do not want the slaves
> to prevent each other from running, just prevent this new builder, which
> is not running on any of the build slaves.
>
> Can anybody see a way to achieve this?  Everything I have tried so far
> is flawed.  slave locks don't work, because the build in question
> doesn't run on any particular slave, and master locks would prevent the
> slaves from running simultaneously.
>
> One thing I considered is having a separate master lock for each build
> on each slave, then having this new build have all of those locks.
> Unfortunately, some of our builds can run on multiple slaves.  Those
> slaves would still be locked between each other, and since the lock is
> done at the build/step, there's no way of preventing that that I can see.
>
> So, anyone have any brilliant ideas? on how I can solve this?  I really
> need something that will only execute when nothing else is going on.
>
> --
> Geoff Wedig
> Software Engineer
> Digital Domain
>
>
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