[HIVE-5715] HS2 should not "start" a session for every command

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.12.0
• Fix Version/s: 0.13.0
• Component/s: HiveServer2
• Assignee: Gunther Hagleitner
• Reporter: Gunther Hagleitner
• Created: 31/Oct/13 20:53
• Updated: 02/May/21 00:36
• Resolved: 01/Nov/13 20:31

Description

HS2 calls SessionState.start multiple times (acquire, operation.run) - where it really just cares that the session is set in the thread local store. There are some calls in start session method now that preload stuff that's used during the session. Instead of doing that over and over again, I think it'd be nicer for HS2 to start a session once and then just do the thread local magic as needed.

Issue Links

• relates to: SPARK-35286 Replace SessionState.start with SessionState.setCurrentSessionState