[IMPALA-641] Allow queries to be cancelled while waiting for a resource reservation (RM).

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 2.0
• Fix Version/s: Impala 2.8.0
• Component/s: Backend
• Labels: llama query-lifecycle resource-management
• Target Version: Product Backlog
• Assignee: Matthew Jacobs
• Reporter: Alexander Behm
• Created: 24/Oct/13 17:18
• Updated: 13/Apr/18 17:17
• Resolved: 07/Dec/16 17:45

Description

Currently, the cancellation flag is not checked while a query is waiting for a reservation. Queries may be in this waiting state for several minutes before a timeout is hit, so it would be good to allow cancellation from this state.