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From "Carlo Curino (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3454) RLESparseResourceAllocation does not handle removal of partial intervals (+ introducing support for efficient "merge" operations)
Date Thu, 19 Nov 2015 00:56:11 GMT

    [ https://issues.apache.org/jira/browse/YARN-3454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15012498#comment-15012498
] 

Carlo Curino commented on YARN-3454:
------------------------------------

V3 addresses a couple more details that [~asuresh] has kindly pointed out.

> RLESparseResourceAllocation does not handle removal of partial intervals (+ introducing
support for efficient "merge" operations) 
> ----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-3454
>                 URL: https://issues.apache.org/jira/browse/YARN-3454
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.8.0, 2.7.1, 2.6.2
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-3454.1.patch, YARN-3454.2.patch, YARN-3454.3.patch, YARN-3454.patch
>
>
> The RLESparseResourceAllocation.removeInterval(...) method handles well exact match interval
removals, but does not handles correctly partial overlaps. 
> In the context of this fix, we also introduced static methods to "merge" two RLESparseResourceAllocation,
while applying an operator in the process (add/subtract/min/max/subtractTestPositive)



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