[jira] [Created] (DRILL-2673) Update UserServer <==> UserClient RPC to handle handshake response better

["Venki Korukanti (JIRA)" <ji...@apache.org>]

Venki Korukanti created DRILL-2673:
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             Summary: Update UserServer <==> UserClient RPC to handle handshake response better
                 Key: DRILL-2673
                 URL: https://issues.apache.org/jira/browse/DRILL-2673
             Project: Apache Drill
          Issue Type: Improvement
            Reporter: Venki Korukanti
            Assignee: Venki Korukanti


Currently if an exception occurs while UserServer is handling handshake message from UserClient, server terminates the connection which causes the client to not handle the handshake response properly. 

This JIRA is to modify the behavior of UserServer when an exception occurs or contents (ex. user/password credentials) of handshake request are not valid to:
-- First send a handshake response message with error details 
-- Then terminate the connection.

As the client always receives the handshake response, it can inform the application about the error if the response has any.



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