Hi Pierre,
Thanks for the confirmation. Please note, because I failed to mention
it, that we set collapseRequests globally for most schedulers.
Our fix ended up being to append the master name to the schedulers. We
lose failover for the schedulers, though.
I may look at your solution if I get some time. I may not understand
correctly, but it sounds like I'd end up with a builder with the same
name on 2 different masters. One would be the actual builder, and the
other would exist solely for its collapseRequests behavior?
It would seem that an eventual fix would involve using the collapse
behavior attached specifically to a builder, if present. If not present,
the global config would be able to use the default function, given
function, or nothing. I don't think it would be too hard to implement
that. The only oddity right now is that scheduling has to jump through
the builder to find the function.
Neil Gilmore
grammatech.com
On 11/23/2016 5:55 AM, Pierre Tardy wrote:
Hi Neil,
Thanks for the info, this is indeed a design problem that was unknown
to me.
The collapse function will only work in case of a symmetric
multimaster setup.
in 0.8, the collapsing was done at the build start time, this is why
the config was done in the builder.
Now it is made at the buildrequest insertion time so that the
collapsing algorithm can be more efficient
You can workaround this by configuring dummy builderconfig with only
your collapse algorithm (and perhaps attach a dummy slave that is
meant to be always disconnected)
Pierre
Le mar. 22 nov. 2016 à 23:20, Neil Gilmore <ngilm...@grammatech.com
<mailto:ngilm...@grammatech.com>> a écrit :
Hi everyone,
We might have a possible multi-master bug. Maybe it's already known.
It appears that if collapseRequests is active, buildrequests will only
collapse if the scheduler and builder are both on the same master.
Otherwise, it appears as though the collapse function will never be
found, and the build will not collapse.
We're getting some requests queueing up that we didn't want.
Neil Gilmore
grammatech.com <http://grammatech.com>
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