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https://issues.apache.org/jira/browse/HBASE-21745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16778944#comment-16778944
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Jingyun Tian commented on HBASE-21745:
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{quote} - Fix region holes, overlaps, and other errors in the region chain
- Fix failed split and merge transactions that have failed to roll back
due to some bug (related to previous){quote}
I think HBCK2 should be able to fix these two problems. They may be caused by
master restart during some procedures running and procedure logs lost. Although
this should rarely happens, we should be able to fix these.
Let add subtasks for fixing them.
> Make HBCK2 be able to fix issues other than region assignment
> -------------------------------------------------------------
>
> Key: HBASE-21745
> URL: https://issues.apache.org/jira/browse/HBASE-21745
> Project: HBase
> Issue Type: Umbrella
> Components: hbase-operator-tools, hbck2
> Reporter: Duo Zhang
> Assignee: stack
> Priority: Critical
>
> This is what [~apurtell] posted on mailing-list, HBCK2 should support
> {quote}
> - Rebuild meta from region metadata in the filesystem, aka offline meta
> rebuild.
> - Fix assignment errors (undeployed regions, double assignments (yes,
> should not be possible), etc)
> - Fix region holes, overlaps, and other errors in the region chain
> - Fix failed split and merge transactions that have failed to roll back
> due to some bug (related to previous)
> - Enumerate store files to determine file level corruption and sideline
> corrupt files
> - Fix hfile link problems (dangling / broken)
> {quote}
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