Improve batch message acking by removing batch message tracker#1424

Merged

merlimat merged 6 commits intoapache:masterfrom sijie:improve_acking_on_batch_messages

Mar 28, 2018

+294-144

Commits on Mar 23, 2018

Commits on Mar 24, 2018

Fix the cumulative ack
sijie
committed

Commits on Mar 27, 2018

Merge remote-tracking branch 'apache/master' into improve_acking_on_batch_messages
sijie
committed

Commits on Mar 28, 2018