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https://issues.apache.org/jira/browse/HBASE-23596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Stack resolved HBASE-23596.
-----------------------------------
    Fix Version/s:     (was: 2.2.4)
                   2.2.3
     Hadoop Flags: Reviewed
     Release Note: 
Makes it so the recently added HBCKServerCrashProcedure -- the SCP that gets 
invoked when an operator schedules an SCP via hbck2 scheduleRecoveries command 
-- now works the same as SCP EXCEPT if master knows nothing of the scheduled 
servername. In this latter case, HBCKSCP will do a full scan of hbase:meta 
looking for instances of the passed servername. If any found it will attempt 
cleanup of hbase:meta references by reassigning any found OPEN or OPENING and 
by closing any in CLOSING state.

Used to fix instances of what the 'HBCK Report' page shows as 'Unknown Servers'.
       Resolution: Fixed

Merged to branch-2.2+

> HBCKServerCrashProcedure can double assign
> ------------------------------------------
>
>                 Key: HBASE-23596
>                 URL: https://issues.apache.org/jira/browse/HBASE-23596
>             Project: HBase
>          Issue Type: Bug
>          Components: proc-v2
>            Reporter: Michael Stack
>            Assignee: Michael Stack
>            Priority: Major
>             Fix For: 3.0.0, 2.3.0, 2.2.3
>
>
> The new SCP that does SCP plus cleanup 'Unknown Servers' with mentions in 
> hbase:meta added by the below can make for double assignments.
> {code}
> commit c238891a26734e1e4276b6b1677a58cf83de5dc4
> Author: stack <[email protected]>
> Date:   Wed Nov 13 22:36:26 2019 -0800
>     HBASE-23282 HBCKServerCrashProcedure for 'Unknown Servers'
> {code}



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