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https://issues.apache.org/jira/browse/HBASE-22709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16891556#comment-16891556
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stack commented on HBASE-22709:
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bq. But I think this maybe a bit dangerous? If the balancer is still running,
we may introduce more inconsistencies if we do this automatically...
I hear you. I think no RIT and no balancer when an 'adoption' runs. hbase:meta
for the table we are importing into should be healthy too -- no holes and no
overlaps so whatever the content of the orphans, there is a place for the
adopted content to go. Maybe put Master into 'maintenance mode' (disables
balancer and lets see, maybe we can quiesce other aspects of Master too.
[~busbey] reminded me of HBASE-21073 today too... Need to take a look at it).
bq. The "fix" thing shoule be better done by user manually.
Yes, hbck2 asks the master to adopt a list of directories/regions. And as
you/[~zghaobac] says, Master has all state.
> Add a chore thread in master to do hbck checking
> ------------------------------------------------
>
> Key: HBASE-22709
> URL: https://issues.apache.org/jira/browse/HBASE-22709
> Project: HBase
> Issue Type: Sub-task
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Priority: Major
> Attachments: HBASE-22709.master.001.patch
>
>
> See HBASE-21965. There may have two type of failed splited/merged regions.
> One is orphan region on filesystem. Another one is unassigned daughter
> regions or merged regions. Plan to add a seperate hbck.jsp for them. Will add
> more hbck problems to this UI in future.
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