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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4377) [hbck] Offline rebuild .META. from fs data only.
Date Sat, 29 Oct 2011 04:43:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13139109#comment-13139109
] 

Hadoop QA commented on HBASE-4377:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12501403/hbase-4377.trunk.v5.txt
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 18 new or modified tests.

    -1 javadoc.  The javadoc tool appears to have generated -166 warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    -1 findbugs.  The patch appears to introduce 4 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

     -1 core tests.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.coprocessor.TestMasterObserver
                  org.apache.hadoop.hbase.client.TestMultiParallel
                  org.apache.hadoop.hbase.master.TestDefaultLoadBalancer
                  org.apache.hadoop.hbase.TestRegionRebalancing
                  org.apache.hadoop.hbase.master.TestMasterFailover
                  org.apache.hadoop.hbase.master.TestDistributedLogSplitting
                  org.apache.hadoop.hbase.coprocessor.TestRegionServerCoprocessorExceptionWithRemove

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/94//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/94//artifact/trunk/patchprocess/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/94//console

This message is automatically generated.
                
> [hbck] Offline rebuild .META. from fs data only.
> ------------------------------------------------
>
>                 Key: HBASE-4377
>                 URL: https://issues.apache.org/jira/browse/HBASE-4377
>             Project: HBase
>          Issue Type: New Feature
>    Affects Versions: 0.92.0
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>         Attachments: 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data-.0.90-v4.patch,
0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data-.0.90.v3.patch, 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data-.patch,
0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data-.trunk.v3.patch, 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data.0.92.v1.patch,
0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data.0.92.v2.patch, EXT_AC.regioninfo,
EXT_ATU_05f84d32cbc0bdabf00e00bc2f3570f0.regioninfo, hbase-4377-trunk.v2.patch, hbase-4377.trunk.v3.txt,
hbase-4377.trunk.v4.txt, hbase-4377.trunk.v5.txt
>
>
> In a worst case situation, it may be helpful to have an offline .META. rebuilder that
just looks at the file system's .regioninfos and rebuilds meta from scratch.  Users could
move bad regions out until there is a clean rebuild.  
> It would likely fill in region split holes.  Follow on work could given options to merge
or select regions that overlap, or do online rebuilds.

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