[HIVE-14267] HS2 open_operations metrics not decremented when an operation gets timed out

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.1.1, 2.2.0
• Component/s: HiveServer2
• Release Note: Committed to 2.2.0 and 2.1.1. Thanks Naveen for the patch.
• Assignee: Naveen Gangam
• Reporter: David Karoly
• Created: 18/Jul/16 14:56
• Updated: 08/Dec/16 14:26
• Resolved: 22/Jul/16 18:44

Description

When an operation gets timed out, it is removed from handleToOperation hash map in OperationManager.removeTimedOutOperation(). However OPEN_OPERATIONS counter is not decremented.
This can result in an inaccurate open operations metrics value being reported. Especially when submitting queries to Hive from Hue with close_queries=false option, this results in misleading HS2 metrics charts.

Issue Links

• links to: ReviewBoard