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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2917) Corner case in container reservations
Date Thu, 01 Sep 2011 12:51:11 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13095273#comment-13095273
] 

Hudson commented on MAPREDUCE-2917:
-----------------------------------

Integrated in Hadoop-Hdfs-trunk #779 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/779/])
    MAPREDUCE-2917. Fixed corner case in container reservation which led to starvation and
hung jobs.

acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1163768
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerApp.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacitySchedulerContext.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/Queue.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java


> Corner case in container reservations
> -------------------------------------
>
>                 Key: MAPREDUCE-2917
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2917
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, resourcemanager
>    Affects Versions: 0.23.0
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2917.patch, MAPREDUCE-2917.patch, MAPREDUCE-2917.patch
>
>
> Saw a corner case in container reservations where the node on which the AM is running
was reserved, and hence never fulfilled leaving the application hanging.

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