[jira] Commented: (HBASE-480) Tool to manually merge two regions

["Bryan Duxbury (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12574134#action_12574134 ] 

Bryan Duxbury commented on HBASE-480:
-------------------------------------

I applied and ran tests for v2, got:

{code}
Testcase: testMergeTable took 33.626 sec
	Caused an ERROR
null
java.lang.NullPointerException
	at org.apache.hadoop.hbase.HMerge$OnlineMerger.nextRegion(HMerge.java:218)
	at org.apache.hadoop.hbase.HMerge$OnlineMerger.next(HMerge.java:275)
	at org.apache.hadoop.hbase.HMerge$Merger.process(HMerge.java:127)
	at org.apache.hadoop.hbase.HMerge.merge(HMerge.java:93)
	at org.apache.hadoop.hbase.TestMergeTable.testMergeTable(TestMergeTable.java:37)
{code}

> Tool to manually merge two regions
> ----------------------------------
>
>                 Key: HBASE-480
>                 URL: https://issues.apache.org/jira/browse/HBASE-480
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Priority: Minor
>         Attachments: merge-0.1-v2.patch, merge-v2.patch, merge.patch
>
>
> hbase-471 needs a tool to merge two regions that have same start key.  This tool may be of use elsewhere making repairs.

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