i want to use ceph rbd's multi-attach ,so i follow this suggestion in https://review.openstack.org/#/c/249080/
but find this error below.
2017-05-24 09:44:37.472 6768 DEBUG cinder.manager [req-61f34cf9-54a2-437b-89b4-e37f4ccd7067 - - - - -] Notifying Schedulers of capabilities ... _publish_service_capabilities /usr/lib/python2.7/site-packages/cinder/manager.py:168
2017-05-24 09:44:37.473 6768 DEBUG oslo_messaging._drivers.amqpdriver [req-61f34cf9-54a2-437b-89b4-e37f4ccd7067 - - - - -] CAST unique_id: d36c9f1cb93b429fac474ab24187d407 FANOUT topic 'cinder-scheduler' _send /usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py:443
2017-05-24 09:44:37.474 6768 DEBUG oslo_service.periodic_task [req-61f34cf9-54a2-437b-89b4-e37f4ccd7067 - - - - -] Running periodic task VolumeManager._report_driver_status run_periodic_tasks /usr/lib/python2.7/site-packages/oslo_service/periodic_task.py:215
2017-05-24 09:44:37.475 6768 DEBUG cinder.volume.drivers.rbd [req-61f34cf9-54a2-437b-89b4-e37f4ccd7067 - - - - -] opening connection to ceph cluster (timeout=-1). _connect_to_rados /usr/lib/python2.7/site-packages/cinder/volume/drivers/rbd.py:322
2017-05-24 09:45:37.470 6768 DEBUG oslo_service.periodic_task [req-61f34cf9-54a2-437b-89b4-e37f4ccd7067 - - - - -] Running periodic task VolumeManager._publish_service_capabilities run_periodic_tasks /usr/lib/python2.7/site-packages/oslo_service/periodic_task.py:215
Seems only DEBUG messages, no ERROR messages.
You need to check your installed cinder version, or directly check the installed source code. The latest mitaka branch doesn't enable multiattach https:/