root@cephclient:~# mount -t ceph 192.169.206.221:6789:/ /mnt/mycephfs/ -v -o name=admin,secret=AQBzewxT+A0vNBAAkJaSOBI495GrgOFzqCjVUw==
[237612.097692] libceph: connect 192.169.206.221:6789 error -101
[237622.108148] libceph: connect 192.169.206.221:6789 error -101
[237632.124133] libceph: connect 192.169.206.221:6789 error -101
[237642.140128] libceph: connect 192.169.206.221:6789 error -101
[237652.156142] libceph: connect 192.169.206.221:6789 error -101
[237662.172130] libceph: connect 192.169.206.221:6789 error -101
mount error 5 = Input/output error
1.秘钥不正确
2.ceph -s 是否正常
3.crush tunables问题，解决办法ceph osd crush tunables default