[ATN] [ACTION REQUIRED] Tweaking engine CI flow

[Roy Golan]

On Wed, Mar 30, 2016 at 11:56 AM, David Caro <dcaro at redhat.com> wrote:

> On 03/30 11:45, Roy Golan wrote:
> > Hi all,
> >
> > Eyal and I sat together to analyse and tweak the engine CI and this is
> what
> > we came up with:
> >
> > - dao test excludes updated - exclude dal/src/main/bundles from invoking
> > dao tests
> >   A trivial update of validation messages without any db change would
> > trigger dao test without any need. This is one less job run for lots of
> > patches.
> > This change is effective now.
>
> I really recommend merging this into the standard ci scripts and doing the
> trigger/don't trigger stuff there
>
> >
> > - Spare CI re-run on trivial rebases
> >   Gerrit trigger supports suppressing itself if the change to the tree
> was
> > trivial. Most of the waste of resources(time and IO :) )  is around
> > rebasing a change and waiting for CI to rerun. if Change1 is ci+1 and
> > Change2 is ci+1 the chances that they will break CI together is very
> small
> > and taking that risk is most probably worth it due to the huge resources
> > waste
>
> This is not exactly how it works, trivial rebases don't care if the
> previous
> patch had ci+1 or not, it just means that the rebase did not get any
> conflicts,
>
that most of the time is not related to the tests working or not (it might
> be
> that someone change a method on another file, that your patch is using and
> it
> will be a trivial rebase and break the tests/compile).
>
> Yes but this is very unlikely to happen. But there are obvious cases where
> it can:
>
If HEAD chaged a configuration file like pom files or other xml like
> fixtures.xml so we can force a trigger if there was a diff in the rebase
> change list.
>
> I don't really recommend skipping them. What you might meant is non-code
> changes, those are changes that only change the commit message, for
> example, if
> you have a patch, and you want to fix a typo in the commit message,
> currently
> that small commit message fix will require and trigger a ci run, while when
> skipping the non-code changes, it will not needed.
>
> We should exclude non-code changes only too.

>   This change isn't effective yet - *Please reply here* if you agree or
> not
> > to make this change available.
> >
> > All of this is 'master' - 3.6 will follow if we will agree on activating
> > that change.
> >
> > Thanks,
> > Roy
>
> > _______________________________________________
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> > Infra at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/infra
>
>
> --
> David Caro
>
> Red Hat S.L.
> Continuous Integration Engineer - EMEA ENG Virtualization R&D
>
> Tel.: +420 532 294 605
> Email: dcaro at redhat.com
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>
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