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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8219) Align Offline Merge with Online Merge
Date Mon, 01 Apr 2013 19:35:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619075#comment-13619075
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Matteo Bertozzi commented on HBASE-8219:
----------------------------------------

A compaction is called on the merge region, this means that after that call the region will
not have reference files, but the real data. right?
so at this point the other two regions are removed by using the archiver, are they empty after
the compaction? they should, right... maybe add an assert there.

if what I have said above is true, I'm +1 on the patch (with the assert if you want)
                
> Align Offline Merge with Online Merge
> -------------------------------------
>
>                 Key: HBASE-8219
>                 URL: https://issues.apache.org/jira/browse/HBASE-8219
>             Project: HBase
>          Issue Type: Task
>          Components: regionserver
>    Affects Versions: 0.95.0
>            Reporter: Matteo Bertozzi
>            Assignee: chunhui shen
>         Attachments: hbase-8219v1.patch, hbase-8219v2.patch
>
>
> After HBASE-7403 we now have two different tools for online and offline merge, and the
result produced by the two are different. (the online one works with snapshots, the offline
not)
> We should remove the offline one, or align it to the online code.
> Most of the offline code in HRegion.merge() can be replaced with the one in RegionMergeTransaction,
used by the online version.

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