librbd: hang in api tests
In this run:
the test was killed after the 3 hour timeout. The cluster was healthy, and there's nothing in the client log to indicate network issues, so this looks like a hang in librbd.
Similar hangs in tests with other configurations:
and other librbd api tests from http://pulpito.ovh.sepia.ceph.com:8081/teuthology-2015-12-16_23:00:03-rbd-jewel-distro-basic-openstack/