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https://issues.apache.org/jira/browse/MAPREDUCE-4129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251145#comment-13251145
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Ahmed Radwan commented on MAPREDUCE-4129:
-----------------------------------------
The above failures reported by jenkins don't seem to be related to this patch.
> Lots of unneeded counters log messages
> --------------------------------------
>
> Key: MAPREDUCE-4129
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4129
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.1
> Reporter: Ahmed Radwan
> Assignee: Ahmed Radwan
> Fix For: 0.23.2
>
> Attachments: MAPREDUCE-4129.patch
>
>
> Huge number of the same WARN messages are written. We only need to write each
> distinct message once. The messages are of the form:
> {code}
> 2012-04-05 03:55:04,166 WARN mapreduce.Counters: Group {oldGroup} is
> deprecated. Use {newGroup} instead
> {code}
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