https://review.opendev.org/c/openstack/devstack-plugin-ceph/+/778960
introduced new default ceph feature flags.
On a bionic stable/ussuri run, this causes failures in cinder-plugin-ceph-tempest like:
cinderlib.tests.functional.test_basic.BackendFunctBasic.test_extend_on_ceph
---------------------------------------------------------------------------
Captured traceback:
~~~~~~~~~~~~~~~~~~~
Traceback (most recent call last):
File "/home/zuul/src/opendev.org/openstack/cinderlib/cinderlib/nos_brick.py", line 91, in connect_volume
run_as_root=True)
File "/usr/local/lib/python3.6/dist-packages/os_brick/executor.py", line 52, in _execute
result = self.__execute(*args, **kwargs)
File "/home/zuul/src/opendev.org/openstack/cinderlib/cinderlib/nos_brick.py", line 265, in _execute
return rootwrap.custom_execute(*cmd, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/os_brick/privileged/rootwrap.py", line 143, in custom_execute
on_completion=on_completion, *cmd, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/oslo_concurrency/processutils.py", line 431, in execute
cmd=sanitized_cmd)
oslo_concurrency.processutils.ProcessExecutionError: Unexpected error while running command.
Command: sudo rbd map volume-f906cb98-ef9c-4115-b5ae-04a3bdfc740e --pool volumes --conf /tmp/brickrbd_zi7qhe2n --id cinder --mon_host 10.209.129.132:6789
Exit code: 6
Stdout: 'RBD image feature set mismatch. You can disable features unsupported by the kernel with "rbd feature disable volumes/volume-f906cb98-ef9c-4115-b5ae-04a3bdfc740e object-map fast-diff".\nIn some cases useful info is found in syslog - try "dmesg | tail".\n'
Stderr: 'rbd: sysfs write failed\nrbd: map failed: (6) No such device or address\n'
https:/