[DISCUSS] KIP-726: Make the CooperativeStickyAssignor as the default assignor

[Luke Chen]

Hi everyone,
<Update the subject>

I'd like to discuss the following proposal to make the
CooperativeStickyAssignor as the default assignor.

https://cwiki.apache.org/confluence/display/KAFKA/KIP-726%3A+Make+the+CooperativeStickyAssignor+as+the+default+assignor

Any comments are welcomed.

Thank you.
Luke