[IMPALA-7444] Improve debug logging of session opening and expiry

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 3.0, Impala 2.12.0, Impala 3.1.0
• Fix Version/s: Impala 3.1.0
• Component/s: Backend
• Labels: supportability
• Epic Link: SupportabilityRoadMap
• Epic Color: ghx-label-5
• Assignee: Zoram Thanga
• Reporter: Zoram Thanga
• Created: 14/Aug/18 21:47
• Updated: 20/Aug/18 20:04
• Resolved: 20/Aug/18 20:04

Description

I recently had to troubleshoot JDBC client connection slowness, and looking through this part of the code suggests we could improve the logging to make debugging this kind of issue easier.