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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6109) Improve RIT performances during assignment on large clusters
Date Thu, 31 May 2012 23:45:23 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287037#comment-13287037
] 

Hudson commented on HBASE-6109:
-------------------------------

Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #35 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/35/])
    HBASE-6109 Improve RIT performances during assignment on large clusters (N Keywal) (Revision
1344802)

     Result = FAILURE
tedyu : 
Files : 
* /hbase/trunk/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/AssignmentManagerStatusTmpl.jamon
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MXBeanImpl.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterDumpServlet.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/NotifiableConcurrentSkipListMap.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/util/KeyLocker.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/TestDrainingServer.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestHCM.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestMasterObserver.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/Mocking.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentManager.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterNoCluster.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterStatusServlet.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestKeyLocker.java

                
> Improve RIT performances during assignment on large clusters
> ------------------------------------------------------------
>
>                 Key: HBASE-6109
>                 URL: https://issues.apache.org/jira/browse/HBASE-6109
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>    Affects Versions: 0.96.0
>            Reporter: nkeywal
>            Assignee: nkeywal
>            Priority: Minor
>             Fix For: 0.96.0
>
>         Attachments: 6109.v19.patch, 6109.v21.patch, 6109.v23.patch, 6109.v24.patch,
6109.v7.patch
>
>
> The main points in this patch are:
>  - lowering the number of copy of the RIT list
>  - lowering the number of synchronization
>  - synchronizing on a region rather than on everything
> It also contains:
>  - some fixes around the RIT notification: the list was sometimes modified without a
corresponding 'notify'.
>  - some tests flakiness correction, actually unrelated to this patch.

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