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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4517) Too many INFO messages written out during AM to RM heartbeat
Date Mon, 10 Sep 2012 09:09:07 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13451831#comment-13451831
] 

Hadoop QA commented on MAPREDUCE-4517:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12544442/MAPREDUCE-4517.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed unit tests in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2833//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2833//console

This message is automatically generated.
                
> Too many INFO messages written out during AM to RM heartbeat
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-4517
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4517
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: applicationmaster
>            Reporter: James Kinley
>            Priority: Minor
>              Labels: patch
>             Fix For: trunk
>
>         Attachments: MAPREDUCE-4517.patch
>
>
> Too many INFO log messages written out during AM to RM heartbeat. Based on default frequency
of 1000ms (scheduler.heartbeat.interval-ms) either 2 or 4 INFO messages are written out per
second:
> LOG.info("Before Scheduling: " + getStat());
> List<Container> allocatedContainers = getResources();
> LOG.info("After Scheduling: " + getStat());
> if (allocatedContainers.size() > 0) {
>   LOG.info("Before Assign: " + getStat());
>   scheduledRequests.assign(allocatedContainers);
>   LOG.info("After Assign: " + getStat());
> }
> These should probably be changed to DEBUG message to save the log growing too quickly.

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