[jira] [Commented] (HBASE-21745) Make HBCK2 be able to fix issues other than region assignment

["stack (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-21745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16882561#comment-16882561 ] 

stack commented on HBASE-21745:
-------------------------------

Just to state that over the last few days, have been playing with moving the hbck1 tooling out to hbase-operator-tools under hbase-hbck and then altering it so it works against the hbase2 context.  This is so as to realize at least the below from the original list that opens this JIRA:

 * Rebuild meta from region metadata in the filesystem, aka offline meta rebuild.
 * Enumerate store files to determine file level corruption and sideline corrupt files
 * Fix hfile link problems (dangling / broken)

So far the project has been 'interesting': e.g. we'll have to be able to distinguish hbase2 from hbase3 now hbase3 has namespace integrated into hbase:meta; NOT having namespace integrated complicates the offline meta rebuild for hbase2... Hope to have something to share soon.

> 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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