title: Volume is already attached by pod
body: <p>I install kubernetes on ubuntu on baremetal. I deploy 1 master and 3 worker.
  and then deploy rook and every thing work fine.but when i want to deploy a wordpress on it ,it stuck in container creating and then i delete wordpress and now i got this error</p>
  
  <blockquote>
    <p>Volume is already attached by pod
    default/wordpress-mysql-b78774f44-gvr58. Status Running</p>
  </blockquote>
  
  <pre><code>#kubectl describe pods wordpress-mysql-b78774f44-bjc2c
  
  Events:
    Type     Reason       Age                    From               Message
    ----     ------       ----                   ----               -------
    Normal   Scheduled    3m21s                  default-scheduler  Successfully assigned default/wordpress-mysql-b78774f44-bjc2c to worker2
    Warning  FailedMount  2m57s (x6 over 3m16s)  kubelet, worker2   MountVolume.SetUp failed for volume "pvc-dcba7817-553b-11e9-a229-52540076d16c" : mount command failed, status: Failure, reason: Rook: Mount volume failed: failed to attach volume pvc-dcba7817-553b-11e9-a229-52540076d16c for pod default/wordpress-mysql-b78774f44-bjc2c. Volume is already attached by pod default/wordpress-mysql-b78774f44-gvr58. Status Running
    Normal   Pulling      2m26s                  kubelet, worker2   Pulling image "mysql:5.6"
    Normal   Pulled       110s                   kubelet, worker2   Successfully pulled image "mysql:5.6"
    Normal   Created      106s                   kubelet, worker2   Created container mysql
    Normal   Started      101s                   kubelet, worker2   Started container mysql
  
     for more information
  # kubectl get pv
  NAME                                       CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM                    STORAGECLASS      REASON   AGE
  pvc-dcba7817-553b-11e9-a229-52540076d16c   20Gi       RWO            Delete           Bound    default/mysql-pv-claim   rook-ceph-block            13m
  pvc-e9797517-553b-11e9-a229-52540076d16c   20Gi       RWO            Delete           Bound    default/wp-pv-claim      rook-ceph-block            13m
  #kubectl get pvc
  NAME             STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS      AGE
  mysql-pv-claim   Bound    pvc-dcba7817-553b-11e9-a229-52540076d16c   20Gi       RWO            rook-ceph-block   15m
  wp-pv-claim      Bound    pvc-e9797517-553b-11e9-a229-52540076d16c   20Gi       RWO            rook-ceph-block   14m
  
  #kubectl get pods --all-namespaces
  NAMESPACE          NAME                                  READY   STATUS      RESTARTS   AGE
  default            wordpress-595685cc49-sdbfk            1/1     Running     6          9m58s
  default            wordpress-mysql-b78774f44-bjc2c       1/1     Running     0          8m14s
  kube-system        coredns-fb8b8dccf-plnt4               1/1     Running     0          46m
  kube-system        coredns-fb8b8dccf-xrkql               1/1     Running     0          47m
  kube-system        etcd-master                           1/1     Running     0          46m
  kube-system        kube-apiserver-master                 1/1     Running     0          46m
  kube-system        kube-controller-manager-master        1/1     Running     1          46m
  kube-system        kube-flannel-ds-amd64-45bsf           1/1     Running     0          40m
  kube-system        kube-flannel-ds-amd64-5nxfz           1/1     Running     0          40m
  kube-system        kube-flannel-ds-amd64-pnln9           1/1     Running     0          40m
  kube-system        kube-flannel-ds-amd64-sg4pv           1/1     Running     0          40m
  kube-system        kube-proxy-2xsrn                      1/1     Running     0          47m
  kube-system        kube-proxy-mll8b                      1/1     Running     0          42m
  kube-system        kube-proxy-mv5dw                      1/1     Running     0          42m
  kube-system        kube-proxy-v2jww                      1/1     Running     0          42m
  kube-system        kube-scheduler-master                 1/1     Running     0          46m
  rook-ceph-system   rook-ceph-agent-8pbtv                 1/1     Running     0          26m
  rook-ceph-system   rook-ceph-agent-hsn27                 1/1     Running     0          26m
  rook-ceph-system   rook-ceph-agent-qjqqx                 1/1     Running     0          26m
  rook-ceph-system   rook-ceph-operator-d97564799-9szvr    1/1     Running     0          27m
  rook-ceph-system   rook-discover-26g84                   1/1     Running     0          26m
  rook-ceph-system   rook-discover-hf7lc                   1/1     Running     0          26m
  rook-ceph-system   rook-discover-jc72g                   1/1     Running     0          26m
  rook-ceph          rook-ceph-mgr-a-68cb58b456-9rrj7      1/1     Running     0          21m
  rook-ceph          rook-ceph-mon-a-6469b4c68f-cq6mj      1/1     Running     0          23m
  rook-ceph          rook-ceph-mon-b-d59cfd758-2d2zt       1/1     Running     0          22m
  rook-ceph          rook-ceph-mon-c-79664b789-wl4t4       1/1     Running     0          21m
  rook-ceph          rook-ceph-osd-0-8778dbbc-d84mh        1/1     Running     0          19m
  rook-ceph          rook-ceph-osd-1-84974b86f6-z5c6c      1/1     Running     0          19m
  rook-ceph          rook-ceph-osd-2-84f9b78587-czx6d      1/1     Running     0          19m
  rook-ceph          rook-ceph-osd-prepare-worker1-x4rqc   0/2     Completed   0          20m
  rook-ceph          rook-ceph-osd-prepare-worker2-29jpg   0/2     Completed   0          20m
  rook-ceph          rook-ceph-osd-prepare-worker3-rkp52   0/2     Completed   0          20m
  </code></pre>