Richard Antal updated HBASE-24039:
    Attachment: HBASE-24039.master.v1.patch
        Status: Patch Available  (was: Open)

> HBCK2 feature negotiation to check what commands are supported
> --------------------------------------------------------------
>                 Key: HBASE-24039
>                 URL: https://issues.apache.org/jira/browse/HBASE-24039
>             Project: HBase
>          Issue Type: Improvement
>          Components: hbck2, Operability
>            Reporter: Richard Antal
>            Priority: Critical
>         Attachments: HBASE-24039.master.v1.patch
> Each HBase version is shipped with a specific version of HBCK2 therefore we 
> can check the HBCK2 version and decide if the given command is supported in 
> that version or not.
>  It is not that easy to decide if the command is supported or not when 
> dealing with back-ported features.
>  It the conclusion of this I would recommend using feature negotiation to 
> check what commands are supported on the server side instead of comparing 
> versions.

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