[KAFKA-3652] Return error response for unsupported version of ApiVersionsRequest

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.10.0.0
• Fix Version/s: 0.10.0.0
• Assignee: Rajini Sivaram
• Reporter: Rajini Sivaram
• Created: 03/May/16 21:52
• Updated: 05/May/16 01:17
• Resolved: 05/May/16 01:17

Description

Discussion is in the PR https://github.com/apache/kafka/pull/1286.
Dont fail authentication (for SASL) or break connections (normal operation) when an unsupported version of ApiVersionsRequest is received. Instead return error response so that client can retry with earlier version of request.