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https://issues.apache.org/jira/browse/HBASE-4927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13164699#comment-13164699
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Ted Yu commented on HBASE-4927:
-------------------------------
Also ran through the two tests in original patch:
{code}
1302 mt -Dtest=TestHRegionInfo
1303 mt -Dtest=TestCatalogJanitor
{code}
They passed as well.
Integrated to 0.92 and TRUNK.
Thanks for the addendum, Jimmy.
Thanks for the help, Jonathan.
> 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: 0.92.0
>
> Attachments:
> 0001-Fixed-TestOffline-failure-caused-by-HBASE-4927.patch,
> 0001-Fixed-TestOffline-failure-caused-by-HBASE-4927.patch,
> 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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