1053502 - Increase Android 2.3 mochitest chunks

Status: RESOLVED FIXED

(Release Engineering :: General, defect)

Description

[Geoff Brown [:gbrown]]

+++ This bug was initially created as a clone of Bug #1028293 +++

In bug 1051131, mochitest-4 is frequently failing due to exceeding the job timeout. I am slightly hesitant to increase the number of chunks because some other chunks are running in a much shorter time. But I don't immediately see an alternative...

I'm thinking of increasing from 12 to 16 chunks.

Comment 1

[Ryan VanderMeulen [:RyanVM]]

The sad thing is, the chunking is inherently unpredictable, so it's hard to say for sure what effect it'll have on min/max chunk runtime.

FWIW, we should also really look into enabling chunk-by-dir on Android/B2G mochitest-plain at some point. Right now, it's enabled by default on desktop only.

Comment 2

[Geoff Brown [:gbrown]]

:kmoir -- Do you think the timeouts might be related to bug 1047467?

Comment 3

[Geoff Brown [:gbrown]]

Attachment: Increase Android 2.3 mochitest chunks to 16 (buildbot)

Comment 4

[Geoff Brown [:gbrown]]

Attachment: Increase Android 2.3 mochitest chunks to 16 (mozharness configs)

Comment 5

[Kim Moir [:kmoir] ET]

Regarding comment #2, no this is not related to bug 1047467 because the mochitests all run on tst-linux64-spot-* instances which are all m1.medium.  These are not the tests I changed to run on c3.xlarge et al.  So this is a different issue. I'll assume that the mochitests don't need a more power instance type than m1.medium and look at the patches.

Comment 6

[Geoff Brown [:gbrown]]

https://hg.mozilla.org/build/mozharness/rev/83208943d5d8
https://hg.mozilla.org/build/buildbot-configs/rev/693c954bcde6

Comment 7

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

Looks like this broke a test across the various repos: 
https://tbpl.mozilla.org/php/getParsedLog.php?id=45974436&tree=Fx-Team
https://tbpl.mozilla.org/php/getParsedLog.php?id=45976969&tree=Mozilla-Central
https://tbpl.mozilla.org/php/getParsedLog.php?id=45977661&tree=Mozilla-Inbound