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https://issues.apache.org/jira/browse/MAPREDUCE-6298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14539377#comment-14539377
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Tsuyoshi Ozawa commented on MAPREDUCE-6298:
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I agree with Gera's comment. I think we can merge it to branch-2 with the
graceful manner.
[~lars_francke] looking forward to your patch!
> Job#toString throws an exception when not in state RUNNING
> ----------------------------------------------------------
>
> Key: MAPREDUCE-6298
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6298
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Lars Francke
> Assignee: Lars Francke
> Priority: Minor
> Labels: BB2015-05-TBR
> Attachments: MAPREDUCE-6298.1.patch
>
>
> Job#toString calls {{ensureState(JobState.RUNNING);}} as the very first
> thing. That method causes an Exception to be thrown which is not nice.
> One thing this breaks is usage of Job on the Scala (e.g. Spark) REPL as that
> calls toString after every invocation and that fails every time.
> I'll attach a patch that checks state and if it's RUNNING prints the original
> message and if not prints something else.
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