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From "Daniel Templeton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5783) Unit tests to verify the identification of starved applications
Date Wed, 02 Nov 2016 20:38:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-5783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15630385#comment-15630385
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Daniel Templeton commented on YARN-5783:
----------------------------------------

Thanks, [~kasha].  I think we're close.

* Does {{totalAppsEverAdded()}} need to be public, or would default privacy do?  Same for
{{numStarvedApps()}}.
* Can the {{resourceManager.stop()}} call in {{TestFSAppStarvation.tearDown()}} throw an exception
that would prevent the deletion of the {{ALLOC_FILE}}?
* Is it worth adding a test to make sure that the same app can be starved multiple times in
a row?


> Unit tests to verify the identification of starved applications
> ---------------------------------------------------------------
>
>                 Key: YARN-5783
>                 URL: https://issues.apache.org/jira/browse/YARN-5783
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: fairscheduler
>    Affects Versions: 2.8.0
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>              Labels: oct16-medium
>         Attachments: yarn-5783.YARN-4752.1.patch, yarn-5783.YARN-4752.2.patch, yarn-5783.YARN-4752.3.patch,
yarn-5783.YARN-4752.4.patch
>
>
> JIRA to track unit tests to verify the identification of starved applications. An application
should be marked starved only when:
> # Cluster allocation is over the configured threshold for preemption.
> # Preemption is enabled for a queue and any of the following:
> ## The queue is under its minshare for longer than minsharePreemptionTimeout
> ## One of the queue’s applications is under its fairshare for longer than fairsharePreemptionTimeout.



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