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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6317) Master clean start up and Partially enabled tables make region assignment inconsistent.
Date Mon, 01 Oct 2012 11:39:08 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13466740#comment-13466740
] 

Hadoop QA commented on HBASE-6317:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12547206/HBASE-6317_trunk_4.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified
tests.

    {color:green}+1 hadoop2.0{color}.  The patch compiles against the hadoop 2.0 profile.

    {color:red}-1 javadoc{color}.  The javadoc tool appears to have generated 149 warning
messages.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:red}-1 findbugs{color}.  The patch appears to introduce 7 new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.client.TestMultiParallel

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/2974//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2974//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2974//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2974//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2974//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2974//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/2974//console

This message is automatically generated.
                
> 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, 0.94.3, 0.96.0
>
>         Attachments: HBASE-6317_94_3.patch, HBASE-6317_94.patch, HBASE-6317_trunk_2.patch,
HBASE-6317_trunk_3.patch, HBASE-6317_trunk_4.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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