Wireshark-dev: Re: [Wireshark-dev] odd Windows petri-dish failure
From: Gerald Combs <[email protected]>
Date: Wed, 8 Jul 2015 14:28:11 -0700
On 7/8/15 1:46 PM, Hadriel Kaplan wrote:
> Anyone seen this type of petri-dish failure before, on the Windows petri-dish, and know what it means?
> Resolving deltas:  71% (3551/4999)   
> Resolving deltas:  72% (3600/4999)   
> error: index-pack died of signal 11
> fatal: index-pack failed
> program finished with exit code 128
> elapsedTime=22.854000

It started showing up after the Gerrit 2.10 upgrade. As far as I can tell it's due to a combination of the following:

- Slow initial I/O speeds on AWS EC2[1].
- Git on Windows not being particularly fast.
- Gerrit 2.10 timing out HTTP connections after 30 seconds.
- The "retry" flag in Buildbot's Git step not doing much of anything.

Until one of these is fixed we have a build step named "prefetching git to work around Gerrit timeout and Buildbot retry bugs", which should trigger enough I/O reads to work around the timeout and retry issues. Unfortunately it's not guaranteed to work every time.

[1] http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-prewarm.html