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Posted to yarn-issues@hadoop.apache.org by "Carlo Curino (JIRA)" <ji...@apache.org> on 2016/06/01 01:45:12 UTC

[jira] [Commented] (YARN-4525) Bug in RLESparseResourceAllocation.getRangeOverlapping(...)

    [ https://issues.apache.org/jira/browse/YARN-4525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15309040#comment-15309040 ] 

Carlo Curino commented on YARN-4525:
------------------------------------

It is hard to construct a simple test (it depends on various subMaps invocations I guess). But as part of YARN-5164 I am have a test {{TestCapacityOvertimePolicy.testFailAvgBySum()}} that positively triggers this bug.

> Bug in RLESparseResourceAllocation.getRangeOverlapping(...)
> -----------------------------------------------------------
>
>                 Key: YARN-4525
>                 URL: https://issues.apache.org/jira/browse/YARN-4525
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Ishai Menache
>            Assignee: Ishai Menache
>         Attachments: YARN-4525.patch
>
>
> One of our tests detected a corner case in getRangeOverlapping: When the RLESparseResourceAllocation object is a result of a merge operation, the underlying map is a "view" within some range. If  'end' is outside that range, headMap(..) throws an uncaught exception.



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