Comment 1 for bug 1502120

Roman,

Thanks for letting us know. We've been aware of this issue since the very beginning when we started using oslo.messaging. Since oslo doesn't support post-processing message acknowledgement yet we have this gap. And that's the reason why have a number of patches with "RPC" in their commit messages on review. Currently we're working with oslo team to fix this problem. Here's a WIP that addresses that problem: https://review.openstack.org/#/c/229186/