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From Sean Busbey <busbey...@clouderagovt.com>
Subject Re: Review Request 15650: ACCUMULO-1794 adds hdfs failover to continuous integration test.
Date Mon, 18 Nov 2013 17:31:13 GMT
Hey Folks,

I have a proposed agitator script for flexing Hadoop 2's HDFS HA failover.
I'm looking for other features of Hadoop 2 that would be relevant for
ACCUMULO-1794.

One related question I'd like to get a read on: the JobTracker HA in CDH4.
As a quick recap,CDH4.2.0+ includes HA support for MRv1, including
automatic failover between jobtrackers. When a failover occurs, jobs have
to restart.

I have a similar agitator script to the one for HDFS HA that works to fail
over the job tracker. JobTracker HA doesn't exist in any Apache Hadoop
release, so I'm not sure if I should include it in the general test suite
as it would only be applicable to clusters running CDH4+ (unless some other
distro adds an equivalent administrative command).

Thoughts?


On Mon, Nov 18, 2013 at 11:13 AM, Sean Busbey <sean@manvsbeard.com> wrote:

>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/15650/
> -----------------------------------------------------------
>
> Review request for accumulo and Alex Moundalexis.
>
>
> Bugs: ACCUMULO-1794
>     https://issues.apache.org/jira/browse/ACCUMULO-1794
>
>
> Repository: accumulo
>
>
> Description
> -------
>
> ACCUMULO-1794 adds hdfs failover to continuous integration test.
>
>
> Diffs
> -----
>
>   test/system/continuous/continuous-env.sh.example
> 830ae86b5bf2398a840b853423755f6dd65f2dc0
>   test/system/continuous/hdfs-agitator.pl PRE-CREATION
>   test/system/continuous/start-agitator.sh
> 52e5a4e82a4564fa624a71f73ad29fa20ba23246
>   test/system/continuous/stop-agitator.sh
> b853a55b12f8402606af52e0748ca50daf95ed7f
>
> Diff: https://reviews.apache.org/r/15650/diff/
>
>
> Testing
> -------
>
> Ran the hdfs agitator on a CDH4 cluster configured for HA. it successfully
> caused the active namenode to failover as it went.
>
>
> Thanks,
>
> Sean Busbey
>
>


-- 
Sean

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