[DRILL-641] Better semantic and handling for kill()

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: Future
• Assignee: Unassigned
• Reporter: Mehant Baid
• Created: 05/May/14 22:59
• Updated: 09/Jun/14 06:48

Description

Currently when an operator invokes kill(), only the upstream operators within that fragment get terminated. This causes problems if the upstream operator in a different fragment is still continuously producing batches, and it then becomes the responsibility of the operator to drain all the batches even though a kill was issued.

While dealing with plans with multiple fragments we would need to inform the sender that a kill has been invoked. It would then be the responsibility of the sender to not push any more batches to the corresponding receiver.