[ 
https://issues.apache.org/jira/browse/YARN-1307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13838514#comment-13838514
 ] 

Hadoop QA commented on YARN-1307:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12616926/YARN-1307.9.patch
  against trunk revision .

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

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

    {color:red}-1 javac{color:red}.  The patch appears to cause the build to 
fail.

Console output: https://builds.apache.org/job/PreCommit-YARN-Build/2594//console

This message is automatically generated.

> Rethink znode structure for RM HA
> ---------------------------------
>
>                 Key: YARN-1307
>                 URL: https://issues.apache.org/jira/browse/YARN-1307
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Tsuyoshi OZAWA
>            Assignee: Tsuyoshi OZAWA
>         Attachments: YARN-1307.1.patch, YARN-1307.2.patch, YARN-1307.3.patch, 
> YARN-1307.4-2.patch, YARN-1307.4-3.patch, YARN-1307.4.patch, 
> YARN-1307.5.patch, YARN-1307.6.patch, YARN-1307.7.patch, YARN-1307.8.patch, 
> YARN-1307.9.patch, YARN-1307.9.patch
>
>
> Rethink for znode structure for RM HA is proposed in some JIRAs(YARN-659, 
> YARN-1222). The motivation of this JIRA is quoted from Bikas' comment in 
> YARN-1222:
> {quote}
> We should move to creating a node hierarchy for apps such that all znodes for 
> an app are stored under an app znode instead of the app root znode. This will 
> help in removeApplication and also in scaling better on ZK. The earlier code 
> was written this way to ensure create/delete happens under a root znode for 
> fencing. But given that we have moved to multi-operations globally, this isnt 
> required anymore.
> {quote}



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