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https://issues.apache.org/jira/browse/HBASE-21745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16893091#comment-16893091
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stack commented on HBASE-21745:
-------------------------------
HBASE-22723 is about reporting holes, overlaps, etc. found during
catalogjanitor scans. [~zghaobac] over in HBASE-22709 adds a chore that runs
in Master that finds 'problematic regions' -- i.e. old hbck1 findings such as
orphans in HDFS, regions on RS not in hbase:meta, etc. -- and then shows them
on a new 'hbck report' page added to the UI (HBASE-22527 had added listing
problematic regions on the head of the main master UI but HBASE-22709 moves the
info to a dedicated page). After HBASE-22709 and HBASE-22723 go in, will add to
the new 'hbck report' the findings from HBASE-22723 so also shows in UI.
TODO:
* HOWTO fix it doc added inline into 'hbck report' page
* shell command to regenerate the 'hbck report' so shows fresher info.
For now, fix-it is hbck2 tool. Later, we might consider moving fixing into the
shell to a new hbck command.
> 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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