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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8258) Make mapreduce tests pass on hadoop2
Date Fri, 05 Apr 2013 04:40:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13623357#comment-13623357

Ted Yu commented on HBASE-8258:

bq. it will change underneath us and cause us pain
As I said above, 0.95 needs a stable hadoop 2 release (2.0.4-alpha).
For trunk, building against SNAPSHOT artifacts would allow us to find the problem much sooner.
If I understand Roman's point of view correctly, he wants to discover regression in upstream
project in a similar way.

bq. but doesn't get down to which particular variables are important.
One such config param is YarnConfiguration.IS_MINI_YARN_CLUSTER which must be set true in
order for MiniMRCluster to work.
See YARN-129

bq. Should it get folded in to all them?
Can you explain folding a little bit ?

bq. we should make them clearer for the next person.
Agreed. Will add comment once solution is finalized.
> Make mapreduce tests pass on hadoop2
> ------------------------------------
>                 Key: HBASE-8258
>                 URL: https://issues.apache.org/jira/browse/HBASE-8258
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>            Reporter: stack
>            Priority: Blocker
>             Fix For: 0.95.1
>         Attachments: 8258-plain.txt, 8258-v1-hadoop-2.0.txt
> HBASE-7904 was a first attempt at making this work but it got lost in the weeds.
> This is a new attempt at making hbase mapreduce jobs run on hadoop2 (w/o breaking mapreduce
on hadoop1)

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