Hello, I'm currently running into an issue with the infrastructure. This patch: https://review.openstack.org/#/c/39237/ adds tests for Ceilometer in Tempest and fails with a "Connection Refused", and I really have no idea why. We've tried running "netstat" inside the tests to have more info, but this times out (see https://review.openstack.org/#/c/47194/). Do you know how we could figure out why https://review.openstack.org/#/c/39237/ fails ? CC'ed: Julien, Mehdi and Yassine, who have been working with me on this issue. Cyril.