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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4927) CatalogJanior:SplitParentFirstComparator doesn't sort as expected, for the last region when the endkey is empty
Date Tue, 06 Dec 2011 19:37:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13163765#comment-13163765
] 

Hadoop QA commented on HBASE-4927:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12506284/0001-HBASE-4927-CatalogJanior-SplitParentFirstComparator_v2.patch
  against trunk revision .

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

    +1 tests included.  The patch appears to include 8 new or modified tests.

    -1 javadoc.  The javadoc tool appears to have generated -160 warning messages.

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

    -1 findbugs.  The patch appears to introduce 71 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.util.hbck.TestOfflineMetaRebuildHole
                  org.apache.hadoop.hbase.util.TestFSUtils
                  org.apache.hadoop.hbase.coprocessor.TestCoprocessorEndpoint
                  org.apache.hadoop.hbase.util.hbck.TestOfflineMetaRebuildBase

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/453//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/453//artifact/trunk/patchprocess/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/453//console

This message is automatically generated.
                
> CatalogJanior:SplitParentFirstComparator doesn't sort as expected, for the last region
when the endkey is empty
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4927
>                 URL: https://issues.apache.org/jira/browse/HBASE-4927
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.92.0, 0.94.0
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>            Priority: Minor
>             Fix For: 0.94.0
>
>         Attachments: 0001-HBASE-4927-CatalogJanior-SplitParentFirstComparator-.patch,
0001-HBASE-4927-CatalogJanior-SplitParentFirstComparator_v2.patch, hbase-4927-fix-ws.txt
>
>
> When reviewing HBASE-4238 backporting, Jon found this issue.
> What happens if the split points are  (empty end key is the last key, empty start key
is the first key)
> Parent     [A,)
> L daughter [A,B), 
> R daughter [B,)
> When sorted, we gets to end key comparision which results in this incorrector order:
> [A,B), [A,), [B,) 
> we wanted:
> [A,), [A,B), [B,)

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