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https://issues.apache.org/jira/browse/MAPREDUCE-1160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771498#action_12771498
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Hudson commented on MAPREDUCE-1160:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #127 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-Mapreduce-trunk/127/])
. Reduce verbosity of log lines in some Map/Reduce classes to avoid filling
up jobtracker logs on a busy cluster. Contributed by Ravi Gummadi and Hong Tang.
> Two log statements at INFO level fill up jobtracker logs
> --------------------------------------------------------
>
> Key: MAPREDUCE-1160
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1160
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Reporter: Hemanth Yamijala
> Assignee: Ravi Gummadi
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1160-20.patch, MR-1160-2.patch, MR-1160.patch
>
>
> There are two log statements being logged at an INFO level that are
> unnecessarily filling up JT logs. This is making it difficult to debug issues
> on large cluster systems.
> The two statements identified are the following:
> INFO org.apache.hadoop.mapred.JobInProgress: No reduces to schedule for
> <jobid>
> and
> INFO org.apache.hadoop.mapred.ResourceEstimator: completedMapsUpdates:22
> completedMapsInputSize:656 completedMapsOutputSize:6299
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