Sep 11 15:46:35 os-kolla2 kubelet[7838]: E0911 15:46:35.588267    7838 nestedpendingoperations.go:262] Operation for "\"kubernetes.io/rbd/0116abc6-96fc-11e7-91de-005056909ce0-pvc-abda97df-96f0-11e7-91de-005056909ce0\" (\"0116abc6-96fc-11e7-91de-005056909ce0\")" failed. No retries permitted until 2017-09-11 15:48:37.588222256 +0100 BST (durationBeforeRetry 2m2s). Error: MountVolume.SetUp failed for volume "pvc-abda97df-96f0-11e7-91de-005056909ce0" (UniqueName: "kubernetes.io/rbd/0116abc6-96fc-11e7-91de-005056909ce0-pvc-abda97df-96f0-11e7-91de-005056909ce0") pod "mariadb-0" (UID: "0116abc6-96fc-11e7-91de-005056909ce0") : rbd: image kubernetes-dynamic-pvc-abec37b1-96f0-11e7-9a84-eaefa13f471a is locked by other nodes
Sep 11 15:46:35 os-kolla2 kubelet[7838]: E0911 15:46:35.587898    7838 rbd.go:415] rbd: failed to setup mount /var/lib/kubelet/pods/0116abc6-96fc-11e7-91de-005056909ce0/volumes/kubernetes.io~rbd/pvc-abda97df-96f0-11e7-91de-005056909ce0 rbd: image kubernetes-dynamic-pvc-abec37b1-96f0-11e7-9a84-eaefa13f471a is locked by other nodes
Sep 11 15:46:35 os-kolla2 kubelet[7838]: E0911 15:46:35.587637    7838 disk_manager.go:61] failed to attach disk
Sep 11 15:46:35 os-kolla2 kubelet[7838]: I0911 15:46:35.586956    7838 rbd_util.go:141] lock list output "2017-09-11 15:46:35.574409 7ff168873100 -1 did not load config file, using default settings.\nserver name not found: ceph-mon.ceph.svc.cluster.local (Name or service not known)\nunable to parse addrs in 'ceph-mon.ceph.svc.cluster.local:6789'\nrbd: couldn't connect to the cluster!\n"