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From "Jean-Marc Spaggiari (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7287) HBase inconsistencies when merge failing on "Files have same sequenceid"
Date Thu, 06 Dec 2012 00:26:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13510965#comment-13510965

Jean-Marc Spaggiari commented on HBASE-7287:

Finally, it's not possible to move the newRegionDir creation after the sequenceID check since
some sequenceID for some Familly files might be correct and will need to create the new column
family dirs (makeColumnFamilyDirs). So instead of moving the directory creation, here is a
patch to remove the created directory if the merge is failing, to avoid system inconsistencies.
> HBase inconsistencies when merge failing on "Files have same sequenceid"
> ------------------------------------------------------------------------
>                 Key: HBASE-7287
>                 URL: https://issues.apache.org/jira/browse/HBASE-7287
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jean-Marc Spaggiari
>            Assignee: Jean-Marc Spaggiari
>   Original Estimate: 1h
>  Remaining Estimate: 1h
> When regions merge is failing because the files have the same sequenceID, the expected
region is still created even if it's not used, which leaves the system with inconsistencies.
The new region creation should be moved after the sequenceID test to avoid this issue, until
we find a way to merge regions with the same sequenceID.

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