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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8258) Make mapreduce tests pass on hadoop2
Date Fri, 05 Apr 2013 21:55:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13624105#comment-13624105

Jonathan Hsieh commented on HBASE-8258:

bq. Are you saying that we fix the problems in HBase assuming hadoop-2.0.2-alpha as the underlying
hadoop version?

Yes.  Its been what this build has been broken against for a long time so let's get that fixed
first. Haven't tried 2.0.3 yet, but after this gets fixed we can go there.  *One problem at
a time and ideally per jira.*

bq. So let's say that we identify two or three configs. We should then change copyConfigurationValues
to be more restrictive in copying?

Experiment was already done, see [1] -- yarn.resourcemanager.scheduler.address,
yarn.resourcemanager.address were the main ones.

That lead to the follow up questions, which lead me to see that the whole copying stuff is

bq. On the first one, as per the last hadoopQA run without the fixes with hadoop-2.0.4-SNAPSHOT
almost all of the mapreduce tests failed.

I'm going to ignore tests run against a hadoop SNAPSHOT.

bq. Stack, are you suggesting that we should depend on 2.0.4-alpha sooner rather than later,
maybe even check with 2.0.4-SNAPSHOT on a periodic basis until 2.0.4-alpha is released?

I think he means that not fixing this until 2.0.4 comes out is not a good idea, but I'll let
him answer.

[1] https://issues.apache.org/jira/browse/HBASE-8258?focusedCommentId=13623739&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13623739

> 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, 8258-v2-hadoop-2.0.txt,
8258-v4-hadoop-2.0.txt, hbase-8258-simple.patch
> 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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