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https://issues.apache.org/jira/browse/YARN-2921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14233758#comment-14233758
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Karthik Kambatla commented on YARN-2921:
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Other than the smaller sleep, we should also handle the case where the App or 
AppAttempt enters the required state and then moves to a latter state. e.g. App 
moving to RUNNING state when we are waiting for it to get ACCEPTED. 

> MockRM#waitForState methods can be too slow and flaky
> -----------------------------------------------------
>
>                 Key: YARN-2921
>                 URL: https://issues.apache.org/jira/browse/YARN-2921
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: test
>    Affects Versions: 2.6.0
>            Reporter: Karthik Kambatla
>            Assignee: Tsuyoshi OZAWA
>         Attachments: YARN-2921.001.patch
>
>
> MockRM#waitForState methods currently sleep for too long (2 seconds and 1 
> second). This leads to slow tests and sometimes failures if the 
> App/AppAttempt moves to another state. 



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