Jimmy Xiang created HBASE-6483:
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             Summary: Fully enable ServerShutdownHandler after master joins the 
cluster
                 Key: HBASE-6483
                 URL: https://issues.apache.org/jira/browse/HBASE-6483
             Project: HBase
          Issue Type: Sub-task
            Reporter: Jimmy Xiang


Once ROOT and META are assigned, ServerShutdownHandler is enabled. So that we 
can handle meta/root region server failure before joinCluster is completed. 
However, we can hold ServerShutdownHandler a little bit more for the user 
region assignments, i.e. doesn't assign user regions before joinCluster is 
returned. If so, we can avoid some region assignments racing: same regions are 
trying to be assigned in both joinCluster and ServerShutdownHandler.

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