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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19532) AssignProcedure#COMPARATOR may produce incorrect sort order
Date Tue, 19 Dec 2017 03:43:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16296142#comment-16296142
] 

Ted Yu commented on HBASE-19532:
--------------------------------

You mean TestRegionsOnMasterOptions ?

It occurred a few days back. Not related to the patch.

> AssignProcedure#COMPARATOR may produce incorrect sort order
> -----------------------------------------------------------
>
>                 Key: HBASE-19532
>                 URL: https://issues.apache.org/jira/browse/HBASE-19532
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>            Priority: Critical
>             Fix For: 2.0.0-beta-1
>
>         Attachments: 19532.v1.txt, 19532.v2.txt, 19532.v3.txt, 19532.v4.txt
>
>
> The intention of AssignProcedure#COMPARATOR is to put the regions in the following order:
> meta regions
> system table regions
> user table regions
> However, the current implementation may produce incorrect sort order.
> With the modified test, the test fails with:
> {code}
> testComparatorWithMetas(org.apache.hadoop.hbase.master.snapshot.TestAssignProcedure)
 Time elapsed: 0.038 sec  <<< FAILURE!
> junit.framework.AssertionFailedError
>   at org.apache.hadoop.hbase.master.snapshot.TestAssignProcedure.testComparatorWithMetas(TestAssignProcedure.java:88)
> {code}



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