[IMPALA-2068] TOpenSessionResp should contain coordinator host

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.0
• Fix Version/s: Impala 2.3.0
• Labels: supportability usability
• Target Version: Impala 2.3.0
• Assignee: Matthew Jacobs
• Reporter: Matthew Jacobs
• Created: 15/Jun/15 18:06
• Updated: 19/Jun/15 18:44
• Resolved: 19/Jun/15 18:44

Description

It is currently difficult for clients connected via load balancers to know which coordinator they're connected to. The TOpenSessionResp has a map of configuration settings which are returned, and we can return the connected coordinator in that map. Clients such as Hue can use that information to find the coordinator and thus the debug web UI pages for submitted queries over that session.