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https://issues.apache.org/jira/browse/YARN-5855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16146138#comment-16146138
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Gour Saha commented on YARN-5855:
---------------------------------

Yup, and as we discussed let's leave DELETE as it is now. No need to lower the 
10 secs wait.

> DELETE call sometimes returns success when app is not deleted
> -------------------------------------------------------------
>
>                 Key: YARN-5855
>                 URL: https://issues.apache.org/jira/browse/YARN-5855
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Billie Rinaldi
>            Assignee: Gour Saha
>
> Looking into this issue with [~gsaha], we noticed that multiple things can 
> contribute to an app continuing to run after a DELETE call, which consists of 
> a stop and a destroy operation. One problem is that the stop call is 
> asynchronous unless a force flag is set. Without the force flag, a message is 
> sent to the AM and success is returned, and with the flag 
> yarnClient.killRunningApplication is called. (There is also an option to wait 
> for a fixed amount of time for the app to stop before returning, but DELETE 
> is not setting this option and force is preferable in this case.) The other 
> issue is that the destroy operation is attempted in a loop, but if the number 
> of retries is exceeded the call returns a 204 response.



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