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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2001) Threshold for RM to accept requests from AM after failover
Date Thu, 18 Sep 2014 01:07:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-2001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14138326#comment-14138326
] 

Hadoop QA commented on YARN-2001:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12669554/YARN-2001.5.patch
  against trunk revision 123f20d.

    {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: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-api
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager.

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

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/5013//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5013//console

This message is automatically generated.

> Threshold for RM to accept requests from AM after failover
> ----------------------------------------------------------
>
>                 Key: YARN-2001
>                 URL: https://issues.apache.org/jira/browse/YARN-2001
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Jian He
>            Assignee: Jian He
>         Attachments: YARN-2001.1.patch, YARN-2001.2.patch, YARN-2001.3.patch, YARN-2001.4.patch,
YARN-2001.5.patch, YARN-2001.5.patch, YARN-2001.5.patch
>
>
> After failover, RM may require a certain threshold to determine whether it’s safe to
make scheduling decisions and start accepting new container requests from AMs. The threshold
could be a certain amount of nodes. i.e. RM waits until a certain amount of nodes joining
before accepting new container requests.  Or it could simply be a timeout, only after the
timeout RM accepts new requests. 
> NMs joined after the threshold can be treated as new NMs and instructed to kill all its
containers.



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