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https://issues.apache.org/jira/browse/HADOOP-1553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12516880
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Hadoop QA commented on HADOOP-1553:
-----------------------------------
+0, new Findbugs warnings
http://issues.apache.org/jira/secure/attachment/12362939/new-log.patch
applied and successfully tested against trunk revision r561603,
but there appear to be new Findbugs warnings introduced by this patch.
New Findbugs warnings:
http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/496/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Test results:
http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/496/testReport/
Console output:
http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/496/console
> Extensive logging of C++ application can slow down task by an order of
> magnitude
> --------------------------------------------------------------------------------
>
> Key: HADOOP-1553
> URL: https://issues.apache.org/jira/browse/HADOOP-1553
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.13.0
> Reporter: Christian Kunz
> Assignee: Owen O'Malley
> Priority: Blocker
> Fix For: 0.14.0
>
> Attachments: new-log.patch
>
>
> We observed that extensive logging (due to some configuration mistake) of a
> c++ application using the pipes interface can slow down the task by an order
> of magnitude. During that time disk usage was not high, with no abnormal
> memory usage, and basically idle CPU.
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