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https://issues.apache.org/jira/browse/YARN-2468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14152835#comment-14152835
 ] 

Hadoop QA commented on YARN-2468:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12671951/YARN-2468.9.1.patch
  against trunk revision 0577eb3.

    {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:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler 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-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/5181//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5181//console

This message is automatically generated.

> Log handling for LRS
> --------------------
>
>                 Key: YARN-2468
>                 URL: https://issues.apache.org/jira/browse/YARN-2468
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: log-aggregation, nodemanager, resourcemanager
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>         Attachments: YARN-2468.1.patch, YARN-2468.2.patch, YARN-2468.3.patch, 
> YARN-2468.3.rebase.2.patch, YARN-2468.3.rebase.patch, YARN-2468.4.1.patch, 
> YARN-2468.4.patch, YARN-2468.5.1.patch, YARN-2468.5.1.patch, 
> YARN-2468.5.2.patch, YARN-2468.5.3.patch, YARN-2468.5.4.patch, 
> YARN-2468.5.patch, YARN-2468.6.1.patch, YARN-2468.6.patch, 
> YARN-2468.7.1.patch, YARN-2468.7.patch, YARN-2468.8.patch, 
> YARN-2468.9.1.patch, YARN-2468.9.patch
>
>
> Currently, when application is finished, NM will start to do the log 
> aggregation. But for Long running service applications, this is not ideal. 
> The problems we have are:
> 1) LRS applications are expected to run for a long time (weeks, months).
> 2) Currently, all the container logs (from one NM) will be written into a 
> single file. The files could become larger and larger.



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