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https://issues.apache.org/jira/browse/MAPREDUCE-3377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13266972#comment-13266972
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Matt Foley commented on MAPREDUCE-3377:
---------------------------------------
The merge to branch-1.0 included, apparently by accident, changes to build.xml
that broke the native builds of task-controller and jsvc. I've reverted the
build.xml change only. This error only affected branch-1.0, not branch-1 nor
the other branches.
> Compatibility issue with 0.20.203.
> ----------------------------------
>
> Key: MAPREDUCE-3377
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3377
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.20.203.0
> Environment: 0.20.203.0 standalone JDK 1.6 Linux
> Reporter: Jane Chen
> Assignee: Jane Chen
> Fix For: 1.0.3, 2.0.0
>
> Attachments: err-after, err-before, mapreduce-3377-branch-1.patch,
> mapreduce-3377-branch-1.patch, mapreduce-3377.patch, mapreduce-3377.patch,
> mapreduce-3377.patch, mapreduce-3377.patch, out-after, out-before
>
>
> I have an OutputFormat which implements Configurable. I set new config
> entries to a job configuration during checkOutputSpec() so that the tasks
> will get the config entries through the job configuration. This works fine
> in 0.20.2, but stopped working starting from 0.20.203. With 0.20.203, my
> OutputFormat still has the configuration set, but the copy a task gets does
> not have the new entries that are set as part of checkOutputSpec().
> I believe that the problem is with JobClient. The job configuration needs to
> wait till checkOutputSpec() is returned before being cloned and submitted.
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