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