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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10815) Master regionserver should be rolling-upgradable
Date Mon, 31 Mar 2014 20:04:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13955607#comment-13955607
] 

Hudson commented on HBASE-10815:
--------------------------------

SUCCESS: Integrated in HBase-TRUNK #5052 (See [https://builds.apache.org/job/HBase-TRUNK/5052/])
HBASE-10815 Master regionserver should be rolling-upgradable (jxiang: rev 1583373)
* /hbase/trunk/hbase-common/src/main/resources/hbase-default.xml
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ActiveMasterManager.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/HMasterCommandLine.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/SimpleLoadBalancer.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestBaseLoadBalancer.java


> Master regionserver should be rolling-upgradable
> ------------------------------------------------
>
>                 Key: HBASE-10815
>                 URL: https://issues.apache.org/jira/browse/HBASE-10815
>             Project: HBase
>          Issue Type: Sub-task
>          Components: master, Region Assignment
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>             Fix For: 0.99.0
>
>         Attachments: hbase-10815.patch, hbase-10815_v2.patch
>
>
> In HBASE-10569, two things could affect the rolling-upgrade from a 0.96+ release:
> * Master doesn't have its own info server any. It shares the same info server with the
regionserver. We can have a setting so that we can start two info servers, one for the master
on the original port, and one for the regionserver.
> * Backup master is a regionserver now. So it could hold regions. This could affect some
deployment. We can have a setting so that we can prevent backup master from serving any region.



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