Description of problem:

/dev/sdd is already mounted or /var/lib/origin/openshift.local.volumes/plugins/kubernetes.io/azure-disk/mounts/b1047945704 busy

Version-Release number of selected component (if applicable):

oc v3.7.42
kubernetes v1.7.6+a08f5eeb62
features: Basic-Auth GSSAPI Kerberos SPNEGO

How reproducible:

Always


Steps to Reproduce:

Deploy the following:

apiVersion: v1
kind: Pod
metadata:
  name: my-site
spec:
    containers:
    - name: mysql
      image: registry.access.redhat.com/rhscl/mysql-57-rhel7
      volumeMounts:
      - mountPath: /var/lib/mysql
        name: site-data
    volumes:
    - name: site-data
      persistentVolumeClaim:
        claimName: mysql-pvc

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: mysql-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi


Actual results:

2018-05-04 10:34:25 -0500 CDT   2018-05-04 10:34:25 -0500 CDT   1         my-site   Pod                 Warning   FailedMount   kubelet, pdl98he9ap002   MountVolume.MountDevice failed for volume "pvc-763dd0ab-4fa1-11e8-b497-000d3a94e0cd" : azureDisk - mountDevice:FormatAndMount failed with failed to mount the volume as "ext4", it already contains mpath_member. Mount error: mount failed: exit status 32
Mounting command: systemd-run
Mounting arguments: --description=Kubernetes transient mount for /var/lib/origin/openshift.local.volumes/plugins/kubernetes.io/azure-disk/mounts/b1047945704 --scope -- mount -t ext4 -o defaults /dev/sdd /var/lib/origin/openshift.local.volumes/plugins/kubernetes.io/azure-disk/mounts/b1047945704
Output: Running scope as unit run-62118.scope.
mount: /dev/sdd is already mounted or /var/lib/origin/openshift.local.volumes/plugins/kubernetes.io/azure-disk/mounts/b1047945704 busy

Expected results:

It should mount.

Master Log:

Node Log (of failed PODs):

PV Dump:

PVC Dump:

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: mysql-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi

StorageClass Dump (if StorageClass used by PV/PVC):


Name:		azure-standard-storage
IsDefaultClass:	Yes
Annotations:	storageclass.kubernetes.io/is-default-class=true
Provisioner:	kubernetes.io/azure-disk
Parameters:	location=centralus,skuName=Standard_LRS

Additional info:

Using unmanaged storage with Azure