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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3222) RMNodeImpl#ReconnectNodeTransition should send scheduler events in sequential order
Date Tue, 03 Mar 2015 10:52:07 GMT

    [ https://issues.apache.org/jira/browse/YARN-3222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14344919#comment-14344919
] 

Hadoop QA commented on YARN-3222:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12702122/0004-YARN-3222.patch
  against trunk revision 9ae7f9e.

    {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:red}-1 findbugs{color}.  The patch appears to introduce 5 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-server/hadoop-yarn-server-resourcemanager.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/6818//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-YARN-Build/6818//artifact/patchprocess/newPatchFindbugsWarningshadoop-yarn-server-resourcemanager.html
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/6818//console

This message is automatically generated.

> RMNodeImpl#ReconnectNodeTransition should send scheduler events in sequential order
> -----------------------------------------------------------------------------------
>
>                 Key: YARN-3222
>                 URL: https://issues.apache.org/jira/browse/YARN-3222
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Rohith
>            Assignee: Rohith
>            Priority: Critical
>         Attachments: 0001-YARN-3222.patch, 0002-YARN-3222.patch, 0003-YARN-3222.patch,
0004-YARN-3222.patch
>
>
> When a node is reconnected,RMNodeImpl#ReconnectNodeTransition notifies the scheduler
in a events node_added,node_removed or node_resource_update. These events should be notified
in an sequential order i.e node_added event and next node_resource_update events.
> But if the node is reconnected with different http port, the oder of scheduler events
are node_removed --> node_resource_update --> node_added which causes scheduler does
not find the node and throw NPE and RM exit.
> Node_Resource_update event should be always should be triggered via RMNodeEventType.RESOURCE_UPDATE



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