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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4308) Remove excessive split log messages
Date Sat, 02 May 2015 04:22:09 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14524565#comment-14524565
] 

Hadoop QA commented on MAPREDUCE-4308:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | patch |   0m  0s | The patch command could not apply the patch during
dryrun. |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12530811/mapreduce-4308-branch-1.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / f1a152c |
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5497/console |


This message was automatically generated.

> Remove excessive split log messages
> -----------------------------------
>
>                 Key: MAPREDUCE-4308
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4308
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: jobtracker
>    Affects Versions: 1.0.3
>            Reporter: Kihwal Lee
>         Attachments: mapreduce-4308-branch-1.patch
>
>
> Job tracker currently prints out information on every split.
> {noformat}
> 2012-05-20 00:06:01,985 INFO org.apache.hadoop.mapred.JobInProgress: 
> tip:task_201205100740_1745_m_000000 has split on node:/192.168.0.1
> /my.totally.madeup.host.com
> {noformat}
> I looked at one cluster and these messages were taking up more than 30% of the JT log.
If jobs have large number of maps, it can be worse. I think it is reasonable to lower the
log level of the statement from INFO to DEBUG.



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