[IMPALA-1474] Add metric for running queries

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: Impala 2.0
• Fix Version/s: Impala 2.11.0
• Component/s: Distributed Exec
• Labels: newbie supportability
• Target Version: Product Backlog
• Assignee: Henry Robinson
• Reporter: Nong Li
• Created: 15/Nov/14 21:02
• Updated: 04/Dec/17 20:00
• Resolved: 04/Dec/17 20:00

Description

We can add tests to verify they are 0 when we expect nothing to be running.