[HIVE-14311] No need to schedule Heartbeat task if the query doesn't require locks

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.0, 2.1.1, 2.2.0
• Fix Version/s: 1.3.0, 2.1.1, 2.2.0
• Component/s: Transactions
• Target Version/s: 1.3.0, 2.1.1, 2.2.0
• Assignee: Wei Zheng
• Reporter: Wei Zheng
• Created: 22/Jul/16 17:56
• Updated: 08/Dec/16 14:15
• Resolved: 25/Jul/16 16:33

Description

Otherwise the Heartbeat task will just stay there and not be cleaned up, which may cause OOM eventually.