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https://issues.apache.org/jira/browse/MAPREDUCE-5905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira AJISAKA updated MAPREDUCE-5905:
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Attachment: MAPREDUCE-5905.patch
Attaching a patch.
> CountersStrings.toEscapedCompactStrings outputs unnecessary "null" strings
> --------------------------------------------------------------------------
>
> Key: MAPREDUCE-5905
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5905
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.4.0
> Reporter: Akira AJISAKA
> Assignee: Akira AJISAKA
> Priority: Minor
> Attachments: MAPREDUCE-5905.patch
>
>
> CountersStrings.toEscapedCompactStrings outputs "null" strings if a
> CounterGroup has more than one Counter.
> That way there are some "null" strings in MRv1(CDH) job history log.
> https://issues.cloudera.org/browse/DISTRO-598
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