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Date: Fri, 5 Apr 2013 11:30:50 -0700
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 <CADcMMgGT8Ry=1DKb7tC0E2GFtyCM4PL_KMQQCm8zt_ibmmyKuw@mail.gmail.com>
Subject: Re: trunk vs. precommit dev env
From: Stack <stack@duboce.net>
To: HBase Dev List <dev@hbase.apache.org>
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On Fri, Apr 5, 2013 at 8:29 AM, Nicolas Liochon <nkeywal@gmail.com> wrote:

> Hi,
>
> It took me ages, but I found the difference between trunk and precommit
> builds.
> Precommits are executed on hadoop* machines. There is a single build at a
> time.
> Trunks are executed on ubuntu* machines. There are two simultaneous builds.
>
> For example, we have currently on ubuntu3:
> ubuntu3 <https://builds.apache.org/computer/ubuntu3/> 1
>  core-integration-testing-maven-3-jdk-1.6<
> https://builds.apache.org/job/core-integration-testing-maven-3-jdk-1.6/>
>  #639<
> https://builds.apache.org/job/core-integration-testing-maven-3-jdk-1.6/639/
> >
>
>
> 2
>  HBase-TRUNK <https://builds.apache.org/job/HBase-TRUNK/>
> #4019<https://builds.apache.org/job/HBase-TRUNK/4019/>
>
>
>
> I suppose we can have two hbase builds on the same machine.
>
> Imho, that's why we have so many failures on trunk builds.
>
> Two solutions:
>  - Use hadoop* for trunk builds. That's the best option imho, they seem
> cleaner then ubuntu* and less use.
> - When building trunk, use a very low parallel test factor. May be 2.
>
> Thoughts?
> Does anyone know how to do this?
>

I can do this while your perms are being worked out.

-Dsurefire.secondPartThreadCount=2 will make it so only two // tests
running?

Thanks N,
St.Ack

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