ansible output

PLAY [ceph-mon,ceph-osd,ceph-rgw] **********************************************

TASK [setup] *******************************************************************
fatal: [10.3.66.64]: UNREACHABLE! => {"changed": false, "msg": "Failed to connect to the host via ssh.", "unreachable": true}
        to retry, use: --limit @/home/otc-ironic/kolla/ansible/site.retry

PLAY RECAP *********************************************************************
10.3.66.64                 : ok=0    changed=0    unreachable=1    failed=0