stack commented on HBASE-18792:

[~davelatham] Hopefully it'll be needed less often than in the past but yeah we 
need an hbck2 (HBASE-19121). Its very vocabulary will be different because it 
all works so differently now. Idea is to start a new subproject so we can roll 
out improvement in it quickly.

> hbase-2 needs to defend against hbck operations
> -----------------------------------------------
>                 Key: HBASE-18792
>                 URL: https://issues.apache.org/jira/browse/HBASE-18792
>             Project: HBase
>          Issue Type: Task
>          Components: hbck
>            Reporter: stack
>            Assignee: Umesh Agashe
>            Priority: Blocker
>             Fix For: 2.0.0
>         Attachments: hbase-18792.master.001.patch
> hbck needs updating to run against hbase2. Meantime, if an hbck from hbase1 
> is run against hbck2, it may do damage. hbase2 should defend itself against 
> hbck1 ops.

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