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https://issues.apache.org/jira/browse/YARN-5317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15372975#comment-15372975
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Jason Lowe commented on YARN-5317:
----------------------------------

Thanks for the patch, [~sandflee]!  

Also I noticed the same code snippet appears in 
testAMRestartWithExistingContainers, so I'm wondering if it could have the same 
issue.  There are also other places that don't have the exact same code snippet 
but are waiting for an app state of ACCEPTED then doing things relative to the 
app attempt, so I'm thinking they too could be susceptible to the 
app-is-accepted-but-attempt-not-scheduled race.


> testAMRestartNotLostContainerCompleteMsg may fail
> -------------------------------------------------
>
>                 Key: YARN-5317
>                 URL: https://issues.apache.org/jira/browse/YARN-5317
>             Project: Hadoop YARN
>          Issue Type: Test
>            Reporter: sandflee
>            Assignee: sandflee
>            Priority: Minor
>         Attachments: YARN-5317.01.patch
>
>
> java.lang.Exception: test timed out after 30000 milliseconds
>       at java.lang.Thread.sleep(Native Method)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.MockRM.waitForState(MockRM.java:261)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.MockRM.waitForState(MockRM.java:225)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.MockRM.waitForState(MockRM.java:207)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.MockRM.sendAMLaunched(MockRM.java:746)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.applicationsmanager.TestAMRestart.testAMRestartNotLostContainerCompleteMsg(TestAMRestart.java:841)
> see 
> https://builds.apache.org/job/PreCommit-YARN-Build/12204/testReport/org.apache.hadoop.yarn.server.resourcemanager.applicationsmanager/TestAMRestart/testAMRestartNotLostContainerCompleteMsg/



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