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https://issues.apache.org/jira/browse/HBASE-21745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16903524#comment-16903524
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Guanghao Zhang commented on HBASE-21745:
----------------------------------------

For orphan regions on filesystem, use HBCK2 to fix it directly, ie. remove the 
region directory? [~stack]

> 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
>  * -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)- (See 
> https://issues.apache.org/jira/browse/HBASE-21745?focusedCommentId=16888302&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16888302)
>  * 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)-



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