Karthik Kambatla commented on YARN-2921:

One way to handle this would be to (1) sleep for a smaller duration and (2) 
check for states matching the state provided or later ones. The other option is 
to either notify waiters when an app reaches a state, or capture all the states 
an app visits. 

> 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
> 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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