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From "Carlo Curino (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4525) Bug in RLESparseResourceAllocation.getRangeOverlapping(...)
Date Wed, 01 Jun 2016 01:45:12 GMT

    [ 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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