This sounds like the perfect use-case for a project repository. Lets disable 
the retry logic and fix/disable tests there.

-Gregor

On Wednesday, November 4, 2015 at 4:46:02 PM UTC+1, Fabrice Desré wrote:
> Can we *right now* identify the worst offenders by looking at the tests
> results/re-runs? You know that sheriffs will very quickly hide and
> ignore tests that are really flaky.
> 
>       Fabrice
> 
> On 11/04/2015 07:39 AM, Michael Henretty wrote:
> > Hi Gaia Folk,
> > 
> > If you've been doing Gaia core work for any length of time, you are
> > probably aware that we have *many* intermittent Gij test failures on
> > Treeherder [1]. But the problem is even worse than you may know! You
> > see, each Gij test is run 5 times within a test chunk (g. Gij4) before
> > it is marked as failing. Then that chunk itself is retried up to 5 times
> > before the whole thing is marked as failing. This means that for a test
> > to be marked as "passing," it only has to run successfully once in *25*
> > times. I'm not kidding. Our retry logic, especially those inside the
> > test chunk, make it hard to know which intermittent tests are our worst
> > offenders. This is bad.
> > 
> > My suggestion is to stop doing the retries inside the chunks. That way,
> > the failures will at least surface on Treeherder, which means we can
> > star more test, which means we'll have a lot more visibility on the bad
> > intermittents. Sheriffs will complain a lot, so we have to be ready to
> > act on these bugs. But the alternative is that we continue to write
> > tests with a low "raciness" bar which, IMO, have a much lower chance of
> > catching regressions. The longer we wait, the worse this problem becomes.
> > 
> > Thoughts?
> > 
> > Thanks,
> > Michael
> > 
> > 1.)
> > https://bugzilla.mozilla.org/buglist.cgi?keywords=intermittent-failure&keywords_type=allwords&list_id=12657856&resolution=---&query_format=advanced&product=Firefox%20OS
> > 
> > 
> > _______________________________________________
> > dev-fxos mailing list
> > [email protected]
> > https://lists.mozilla.org/listinfo/dev-fxos
> > 
> 
> 
> -- 
> Fabrice Desré
> b2g team
> Mozilla Corporation

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