James Taylor created PHOENIX-3010:
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             Summary: Allow optional rolling restart for major release 
                 Key: PHOENIX-3010
                 URL: https://issues.apache.org/jira/browse/PHOENIX-3010
             Project: Phoenix
          Issue Type: Improvement
            Reporter: James Taylor
            Assignee: Samarth Jain


If the major version number of the client does not match the major version of 
the server, the client is not allowed to connect to the server. However, 
sometimes a major release may make breaking changes to features that are not 
being used by users. In that case, an older client (i.e. 4.x) would work fine 
against a new server (i.e. 5.0). We should have a config parameter, something 
like {{phoenix.connection.allowPriorMajorVersion}} that allows this connection 
to take place, but defaults to false.



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