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Date: Wed, 26 Oct 2011 07:01:32 +0000 (UTC)
From: "Sebastian Bauer (Updated) (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (HBASE-4377) [hbck] Offline rebuild .META. from fs
 data only.
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     [ https://issues.apache.org/jira/browse/HBASE-4377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebastian Bauer updated HBASE-4377:
-----------------------------------

    Attachment: EXT_ATU_05f84d32cbc0bdabf00e00bc2f3570f0.regioninfo
                EXT_AC.regioninfo

If i remember both regioninfo cause problem with empty HRegionInfo.tableName. My test instance almost all time is running trunk, so many thinks could be broken :)
                
> [hbck] Offline rebuild .META. from fs data only.
> ------------------------------------------------
>
>                 Key: HBASE-4377
>                 URL: https://issues.apache.org/jira/browse/HBASE-4377
>             Project: HBase
>          Issue Type: New Feature
>    Affects Versions: 0.92.0
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>         Attachments: 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data-.0.90-v4.patch, 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data-.0.90.v3.patch, 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data-.patch, 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data-.trunk.v3.patch, 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data.0.92.v1.patch, 0001-HBASE-4377-hbck-Offline-rebuild-.META.-from-fs-data.0.92.v2.patch, EXT_AC.regioninfo, EXT_ATU_05f84d32cbc0bdabf00e00bc2f3570f0.regioninfo, hbase-4377-trunk.v2.patch, hbase-4377.trunk.v3.txt, hbase-4377.trunk.v4.txt
>
>
> In a worst case situation, it may be helpful to have an offline .META. rebuilder that just looks at the file system's .regioninfos and rebuilds meta from scratch.  Users could move bad regions out until there is a clean rebuild.  
> It would likely fill in region split holes.  Follow on work could given options to merge or select regions that overlap, or do online rebuilds.

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