Comment 3 for bug 1438498

For a bigger deployment I do see around 400-500 connections which makes around 2k total connections for this particular deployment. Considering that we should expect that one host can always fail, I would set the default value to 2k, the configured memory is way big enough to support a magnitude of connections. I did create an rpc-maas issue to check memcache since a non working memcache can cause havoc in openstack. https://github.com/rcbops/rpc-maas/issues/176