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https://issues.apache.org/jira/browse/YARN-742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13675886#comment-13675886
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Hudson commented on YARN-742:
-----------------------------
Integrated in Hadoop-Hdfs-trunk #1421 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1421/])
YARN-742. Log aggregation causes a lot of redundant setPermission calls.
Contributed by Jason Lowe. (Revision 1489596)
Result = FAILURE
kihwal : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1489596
Files :
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/LogAggregationService.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java
> Log aggregation causes a lot of redundant setPermission calls
> -------------------------------------------------------------
>
> Key: YARN-742
> URL: https://issues.apache.org/jira/browse/YARN-742
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 0.23.7, 2.0.4-alpha
> Reporter: Kihwal Lee
> Assignee: Jason Lowe
> Attachments: YARN-742-1.branch-0.23.patch, YARN-742-1.patch,
> YARN-742.patch
>
>
> In one of our clusters, namenode RPC is spending 45% of its time on serving
> setPermission calls. Further investigation has revealed that most calls are
> redundantly made on /mapred/logs/<user>/logs. Also mkdirs calls are made
> before this.
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