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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1098) Separate out RM services into "Always On" and "Active"
Date Sat, 31 Aug 2013 15:43:53 GMT

    [ https://issues.apache.org/jira/browse/YARN-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13755534#comment-13755534
] 

Hadoop QA commented on YARN-1098:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12600866/yarn-1098-1.patch
  against trunk revision .

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

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

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

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any 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
1.3.9) warnings.

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

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager:

                  org.apache.hadoop.yarn.server.resourcemanager.TestRMRestart

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

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/1815//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/1815//console

This message is automatically generated.
                
> Separate out RM services into "Always On" and "Active"
> ------------------------------------------------------
>
>                 Key: YARN-1098
>                 URL: https://issues.apache.org/jira/browse/YARN-1098
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>              Labels: ha
>         Attachments: yarn-1098-1.patch, yarn-1098-approach.patch, yarn-1098-approach.patch
>
>
> From discussion on YARN-1027, it makes sense to separate out services that are stateful
and stateless. The stateless services can  run perennially irrespective of whether the RM
is in Active/Standby state, while the stateful services need to  be started on transitionToActive()
and completely shutdown on transitionToStandby().
> The external-facing stateless services should respond to the client/AM/NM requests depending
on whether the RM is Active/Standby.

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