+++ This bug was initially created as a clone of Bug #1734813 +++ Description of problem: This was originally reported upstream but has recently been seen downstream by a number of customers with connectivity issues in their env. Nova waits indefinitely on ceph client hangs due to network problems https://bugs.launchpad.net/nova/+bug/1834048 Version-Release number of selected component (if applicable): OSP 15.beta How reproducible: Always. Steps to Reproduce: 1. Deploy environment. 2. Later block access to the rbd cluster. Actual results: n-cpu will wait indefinitely while attempting to connect. Expected results: n-cpu should fail and mark the host as DOWN until connectivity is re-established. Additional info: