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https://issues.apache.org/jira/browse/HBASE-4377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13139386#comment-13139386
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Jonathan Hsieh commented on HBASE-4377:
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@Stack
I have a patch written that optionally handles filling in holes, but haven't
polished it for review yet. I'll add it after this patch gets through. IIRC
it adds this functionality to hbck and to the offline meta rebuilder.
> [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,
> hbase-4377.trunk.v5.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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