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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8944) TestContainerAllocation.testUserLimitAllocationMultipleContainers failure after YARN-8896
Date Fri, 26 Oct 2018 17:36:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16665445#comment-16665445
] 

Wangda Tan commented on YARN-8944:
----------------------------------

Thanks [~wilfreds] , Patch LGTM, will commit today.

> TestContainerAllocation.testUserLimitAllocationMultipleContainers failure after YARN-8896
> -----------------------------------------------------------------------------------------
>
>                 Key: YARN-8944
>                 URL: https://issues.apache.org/jira/browse/YARN-8944
>             Project: Hadoop YARN
>          Issue Type: Test
>          Components: capacity scheduler
>    Affects Versions: 3.1.2, 3.2.1
>            Reporter: Wilfred Spiegelenburg
>            Assignee: Wilfred Spiegelenburg
>            Priority: Major
>         Attachments: YARN-8944.001.patch
>
>
> YARN-8896 changes the behaviour of the CapacityScheduler by limiting the number of containers
that can be allocated in one heartbeat. It is an undocumented change in behaviour.
> The change breaks the junit test: {{TestContainerAllocation.testUserLimitAllocationMultipleContainers}}
> The maximum number of containers that gets assigned via the on heartbeat is 100 and it
expects 199 to be assigned.



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