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https://issues.apache.org/jira/browse/MAPREDUCE-3394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated MAPREDUCE-3394:
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Attachment: mr-3394.txt
Trivial patch attached. This is only present in the 0.20 series.
> Add log guard for a debug message in ReduceTask
> -----------------------------------------------
>
> Key: MAPREDUCE-3394
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3394
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: task
> Affects Versions: 0.20.205.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Trivial
> Attachments: mr-3394.txt
>
>
> There's a LOG.debug message in ReduceTask that stringifies a task ID and uses
> a non-negligible amount of CPU in some cases. We should guard it with
> {{isDebugEnabled}}
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