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Posted to issues@hbase.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2013/01/05 01:44:49 UTC
[jira] [Commented] (HBASE-6317) Master clean start up and Partially
enabled tables make region assignment inconsistent.
[ https://issues.apache.org/jira/browse/HBASE-6317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13544442#comment-13544442 ]
Hudson commented on HBASE-6317:
-------------------------------
Integrated in HBase-0.94-security-on-Hadoop-23 #10 (See [https://builds.apache.org/job/HBase-0.94-security-on-Hadoop-23/10/])
HBASE-6317 Master clean start up and Partially enabled tables make region assignment inconsistent (Rajesh) (Revision 1419174)
Result = FAILURE
tedyu :
Files :
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/master/handler/EnableTableHandler.java
* /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentManager.java
> Master clean start up and Partially enabled tables make region assignment inconsistent.
> ---------------------------------------------------------------------------------------
>
> Key: HBASE-6317
> URL: https://issues.apache.org/jira/browse/HBASE-6317
> Project: HBase
> Issue Type: Bug
> Reporter: ramkrishna.s.vasudevan
> Assignee: rajeshbabu
> Fix For: 0.92.3, 0.96.0, 0.94.4
>
> Attachments: HBASE-6317_92.patch, HBASE-6317_94_3.patch, HBASE-6317_94_4.patch, HBASE-6317_94.patch, HBASE-6317_trunk_2.patch, HBASE-6317_trunk_3.patch, HBASE-6317_trunk_4.patch, HBASE-6317_trunk_5.patch
>
>
> If we have a table in partially enabled state (ENABLING) then on HMaster restart we treat it as a clean cluster start up and do a bulk assign. Currently in 0.94 bulk assign will not handle ALREADY_OPENED scenarios and it leads to region assignment problems. Analysing more on this we found that we have better way to handle these scenarios.
> {code}
> if (false == checkIfRegionBelongsToDisabled(regionInfo)
> && false == checkIfRegionsBelongsToEnabling(regionInfo)) {
> synchronized (this.regions) {
> regions.put(regionInfo, regionLocation);
> addToServers(regionLocation, regionInfo);
> }
> {code}
> We dont add to regions map so that enable table handler can handle it. But as nothing is added to regions map we think it as a clean cluster start up.
> Will come up with a patch tomorrow.
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