fix: backport fixes from query close#4662

Merged

agavra merged 2 commits intoconfluentinc:5.4.xfrom agavra:backport-fixes

Feb 27, 2020

+169-16

Commits on Feb 27, 2020

fix: idempotent terminate that can handle hung streams (confluentinc#4643 )

rodesai
authored and
agavra
committed
fix: don't cleanup topics on engine close (confluentinc#4658 )

committed