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https://issues.apache.org/jira/browse/YARN-2583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14161234#comment-14161234
 ] 

Hadoop QA commented on YARN-2583:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12673234/YARN-2583.3.patch
  against trunk revision 519e5a7.

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 2 new 
or modified test files.

      {color:red}-1 javac{color}.  The applied patch generated 1268 javac 
compiler warnings (more than the trunk's current 1267 warnings).

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with 
eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new 
Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: 
https://builds.apache.org/job/PreCommit-YARN-Build/5289//testReport/
Javac warnings: 
https://builds.apache.org/job/PreCommit-YARN-Build/5289//artifact/patchprocess/diffJavacWarnings.txt
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5289//console

This message is automatically generated.

> Modify the LogDeletionService to support Log aggregation for LRS
> ----------------------------------------------------------------
>
>                 Key: YARN-2583
>                 URL: https://issues.apache.org/jira/browse/YARN-2583
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>         Attachments: YARN-2583.1.patch, YARN-2583.2.patch, YARN-2583.3.patch
>
>
> Currently, AggregatedLogDeletionService will delete old logs from HDFS. It 
> will check the cut-off-time, if all logs for this application is older than 
> this cut-off-time. The app-log-dir from HDFS will be deleted. This will not 
> work for LRS. We expect a LRS application can keep running for a long time. 
> Two different scenarios: 
> 1) If we configured the rollingIntervalSeconds, the new log file will be 
> always uploaded to HDFS. The number of log files for this application will 
> become larger and larger. And there is no log files will be deleted.
> 2) If we did not configure the rollingIntervalSeconds, the log file can only 
> be uploaded to HDFS after the application is finished. It is very possible 
> that the logs are uploaded after the cut-off-time. It will cause problem 
> because at that time the app-log-dir for this application in HDFS has been 
> deleted.



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