On Wed, Nov 20, 2013 at 12:00 PM, Keith Turner <[email protected]> wrote:
> On Mon, Nov 18, 2013 at 12:31 PM, Sean Busbey <[email protected] > >wrote: > > > 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? > > > > I do not see a problem w/ adding this to out test scripts as long as their > is adequate documentation making it clear its for CDH4. The continuous > ingest test do use map reduce. Would it be better to put this script in > CDH4? > > Whether it gets included in Apache Accumulo or not, the script will be used for integration tests on CDH. The down-side to relying on that is primarily that it will only really get maintained with a CDH-specific build of Accumulo in mind. -- Sean
