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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3103) AMRMClientImpl does not update AMRM token properly
Date Wed, 28 Jan 2015 20:12:36 GMT

    [ https://issues.apache.org/jira/browse/YARN-3103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14295763#comment-14295763
] 

Hadoop QA commented on YARN-3103:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12695065/YARN-3103.001.patch
  against trunk revision 9850e15.

    {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:red}-1 eclipse:eclipse{color}.  The patch failed to build 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 .

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/6440//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/6440//console

This message is automatically generated.

> AMRMClientImpl does not update AMRM token properly
> --------------------------------------------------
>
>                 Key: YARN-3103
>                 URL: https://issues.apache.org/jira/browse/YARN-3103
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 2.6.0
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Blocker
>         Attachments: YARN-3103.001.patch
>
>
> AMRMClientImpl.updateAMRMToken updates the token service _before_ storing it to the credentials,
so the token is mapped using the newly updated service rather than the empty service that
was used when the RM created the original AMRM token.  This leads to two AMRM tokens in the
credentials and can still fail if the AMRMTokenSelector picks the wrong one.
> In addition the AMRMClientImpl grabs the login user rather than the current user when
security is enabled, so it's likely the UGI being updated is not the UGI that will be used
when reconnecting to the RM.
> The end result is that AMs can fail with invalid token errors when trying to reconnect
to an RM after a new AMRM secret has been activated.



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