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https://issues.apache.org/jira/browse/MAPREDUCE-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13782438#comment-13782438
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Hitesh Shah commented on MAPREDUCE-4421:
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Sorry for the delay in the review.
Regarding addMRFrameworkToDistributedCache() - one minor question: the code
allows for a non-qualified URI. Should we enforce provision of a
fully-qualified path always?
Minor nit: I believe there should be nothing in the implementation that
requires HDFS as the storage for the MR tarball? Documentation needs to change
as a result unless you believe there are reasons for not mentioning other
filesystems ( except maybe from a testing point of view )?
Patch looks good otherwise. Thanks for adding the detailed docs.
> Remove dependency on deployed MR jars
> -------------------------------------
>
> Key: MAPREDUCE-4421
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4421
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 2.0.0-alpha
> Reporter: Arun C Murthy
> Assignee: Jason Lowe
> Attachments: MAPREDUCE-4421-2.patch, MAPREDUCE-4421.patch,
> MAPREDUCE-4421.patch
>
>
> Currently MR AM depends on MR jars being deployed on all nodes via implicit
> dependency on YARN_APPLICATION_CLASSPATH.
> We should stop adding mapreduce jars to YARN_APPLICATION_CLASSPATH and,
> probably, just rely on adding a shaded MR jar along with job.jar to the
> dist-cache.
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