Ceph » rbd

#When I try to delete a rbd block(the size is 20G),I use the command
rbd -p rbd rm myblock

#When this command is executed, I used CTRL + c to cancel the order

#When I try again to remove the blocks, the following error happened
2015-08-05 20:07:27.473964 7f93db26d840 -1 librbd: image has watchers - not removing
Removing image: 0% complete...failed.
rbd: error: image still has watchers
This means the image is still open or the client using it crashed. Try again after closing/unmapping it or waiting 30s for the crashed client to timeout.

#Here is my interface screenshots

root@vm13:~# rbd -p rbd create myblock --size 20480
root@vm13:~# rbd -p rbd rm myblock
Removing image: 63% complete...^C
root@vm13:~# rbd -p rbd rm myblock
2015-08-05 20:07:27.473964 7f93db26d840 -1 librbd: image has watchers - not removing
Removing image: 0% complete...failed.
rbd: error: image still has watchers
This means the image is still open or the client using it crashed. Try again after closing/unmapping it or waiting 30s for the crashed client to timeout.
root@vm13:~#