[
https://issues.apache.org/jira/browse/HBASE-21745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16748425#comment-16748425
]
Duo Zhang commented on HBASE-21745:
-----------------------------------
[~stack] In general sir, HBCK2 is for fixing the broken cluster where we have
bugs. For AMv1, we know that the design itself has problems so we can see lots
of broken states in real production, and AMv2 aims to solve this and now it
seems work pretty well. But anyway, we could have bugs in code, so we haven't
seen it now does not mean it will not happen in the future...
FWIW, I think we should have the ability to fix region holes, and failed
split/merge, etc.
Thanks.
> 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}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
