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https://issues.apache.org/jira/browse/MAPREDUCE-4129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ahmed Radwan updated MAPREDUCE-4129:
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Attachment: MAPREDUCE-4129_rev2.patch
Thanks Tom for reviewing this! You are right. Also checking they are different
doesn't seem to be sufficient, because the name could have been cut because of
the length limits. I have updated the patch to check if the name was found in
the legacyMap before printing the log message. Please let me know if you have
further comments.
> 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, MAPREDUCE-4129_rev2.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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