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https://issues.apache.org/jira/browse/MAPREDUCE-4392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13407342#comment-13407342
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Robert Joseph Evans commented on MAPREDUCE-4392:
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The code is a copy and paste of what was originally there, and the new test
ensures that it sill works as expected. +1 I'll check this in.
> Counters.makeCompactString() changed behavior from 0.20
> -------------------------------------------------------
>
> Key: MAPREDUCE-4392
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4392
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.3
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Attachments: MAPREDUCE-4392.patch
>
>
> In 0.20, makeCompactString() returned a comma-separated list, but
> MAPREDUCE-3697 changed it to be equivalent to makeEscapedCompactString().
> Users moving from 0.20 to 0.23 are expecting the original behavior from
> makeCompactString().
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