caroliney14 commented on pull request #2769:
URL: https://github.com/apache/hbase/pull/2769#issuecomment-758870917


   @Apache9 I don't think I follow, can you clarify what you meant:
   
   > maybe we could have another map in ServerManager to record the region 
servers which have called regionServerStartup but no regionServerReport yet, 
and once there is a regionServerReport, we move it the actual active region 
server map and allow it to take regions.
   
   Why do we need another map? Isn't it enough that the server be marked as 
online upon its first `regionServerReport()`? Or are we trying to catch some 
error where a rs may have called `regionServerStartup()` but not 
`regionServerReport()`?
   
   > If we do not register our znode on zookeeper after calling 
regionServerStartup
   
   No need to worry about this I think, since I am not changing this logic. We 
are registering the znode in `handleReportForDutyResponse()` which occurs right 
after `regionServerStartup()`. 


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