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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2475) ReservationSystem: replan upon capacity reduction
Date Sat, 04 Oct 2014 07:46:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-2475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14159023#comment-14159023
] 

Hudson commented on YARN-2475:
------------------------------

SUCCESS: Integrated in Hadoop-Yarn-trunk #700 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/700/])
YARN-2475. Logic for responding to capacity drops for the ReservationSystem. Contributed by
Carlo Curino and Subru Krishnan. (cdouglas: rev 1c6950354f3c35a7824770dc251d5aec3be4876a)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/SimpleCapacityReplanner.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestSimpleCapacityReplanner.java
* YARN-1051-CHANGES.txt


> ReservationSystem: replan upon capacity reduction
> -------------------------------------------------
>
>                 Key: YARN-2475
>                 URL: https://issues.apache.org/jira/browse/YARN-2475
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-2475.patch, YARN-2475.patch, YARN-2475.patch
>
>
> In the context of YARN-1051, if capacity of the cluster drops significantly upon machine
failures we need to trigger a reorganization of the planned reservations. As reservations
are "absolute" it is possible that they will not all fit, and some need to be rejected a-posteriori.
 



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