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

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Assignee: Venki Korukanti
• Reporter: Venki Korukanti
• Created: 03/Apr/15 07:00
• Updated: 04/Apr/15 06:17
• Resolved: 04/Apr/15 06:17

Description

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.

Issue Links

• depends upon: DRILL-2498 Separate QueryResult into two messages QueryResult and QueryData
• is depended upon by: DRILL-2672 Update C++ client library to handle user authentication failures.