[IMPALA-7011] Cleanups around PlanRootSink::CloseConsumer()

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 3.1.0
• Fix Version/s: Impala 3.1.0
• Component/s: Backend
• Epic Color: ghx-label-7
• Assignee: Daniel Hecht
• Reporter: Daniel Hecht
• Created: 10/May/18 16:16
• Updated: 06/Jun/18 22:57
• Resolved: 06/Jun/18 22:57

Description

We may not need some CloseConsumer() calls. Also, this is more about cancellation than closing, so I think we should rename it (and perhaps integrate more directly with the normal cancellation mechanisms).