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https://issues.apache.org/jira/browse/HBASE-2526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12889360#action_12889360
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Fred Emmott commented on HBASE-2526:
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A couple of points:
- after this runs, the region it inserts appears as the last region for the
table. The other regions appeared again after ~ 20 seconds
- it assumes that the keys for the table are valid character strings, not
arbitrary byte arrays
> Fixup script that scans .META., report holes if any and then finds dropped
> regions in fs if they are present (loading them if asked)
> -------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-2526
> URL: https://issues.apache.org/jira/browse/HBASE-2526
> Project: HBase
> Issue Type: Task
> Components: scripts
> Reporter: stack
> Attachments: fix_missing_regions.rb
>
>
> I was just at a site that was getting a WRE. Looking at meta, was plain that
> a region was missing from .META. The install was 0.20.3 (0.20.4 should fix
> the issue seen but...). Getting things back online involved digging in logs
> to find info on missing region, what its encoded name was, and then doing a
> hack version of add_table.rb to add back the dropped region.
> A script that could spin through meta could easily find holes. That'd be a
> help. Subsequent, the script could go looking in fs for the missing region.
> If present, it could even add back the missing region. This is subtask of
> hbase-7.
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