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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8144) Limit number of attempts to assign a region
Date Fri, 29 Mar 2013 02:25:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13617005#comment-13617005
] 

Hudson commented on HBASE-8144:
-------------------------------

Integrated in hbase-0.95-on-hadoop2 #46 (See [https://builds.apache.org/job/hbase-0.95-on-hadoop2/46/])
    HBASE-8144 Limit number of attempts to assign a region (Revision 1462215)

     Result = FAILURE
jxiang : 
Files : 
* /hbase/branches/0.95/hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
* /hbase/branches/0.95/hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStates.java
* /hbase/branches/0.95/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentManagerOnCluster.java

                
> Limit number of attempts to assign a region
> -------------------------------------------
>
>                 Key: HBASE-8144
>                 URL: https://issues.apache.org/jira/browse/HBASE-8144
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>            Priority: Minor
>             Fix For: 0.95.0, 0.98.0
>
>         Attachments: trunk-8144.patch, trunk-8144_v2.patch, trunk-8144_v3.1.patch, trunk-8144_v3.2.patch,
trunk-8144_v3.patch
>
>
> In sending a region open request to a region server, we make sure we try at most some
configured times.  However, once the request is accepted by the region server, the region
could go through this transition forever: failed_open (in ZK) => closed => opening =>
failed_open (in ZK), assuming no RPC/network issue.
> It will be good to break the loop and limit the number of tries and move the region to
failed_open state (will be introduced in HBASE-8137)

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