[IMPALA-2767] web UI call to force expire sessions

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 2.2
• Fix Version/s: Impala 2.7.0
• Component/s: Backend
• Labels: ramp-up resource-management
• Target Version: Product Backlog
• Assignee: Sailesh Mukil
• Reporter: Marcell Szabo
• Created: 12/Dec/15 11:29
• Updated: 06/Jul/16 00:29
• Resolved: 06/Jul/16 00:29

Description

The web UI currently has capability of cancelling queries e.g.
http://host:25000/cancel_query?query_id=e14891b21f661309:5ec9c6a31e4afc9a
It would be great to have similar for expiring sessions, e.g.:
http://host:25000/expire_session?session_id=a74520665455e8b9:e7f11bbd5ab47ead
This should have the same effect on the session as --idle_session_timeout kicking in.

This feature would be an alternative to --idle_session_timeout, allowing smarter instrumentation for handling session leaks.