Hi all：
we use ceph rbd with openstack ，recently there are some dirty data in
my cinder-volume databases such as volumes status like error-deleting. So
we need manually delete this volumes。
but when I delete the volume on ceph node，ceph tell me this error
[root@ceph-node3 ~]# rbd -p glance rm
volume-17d9397b-d6e5-45e0-80fa-4bc7b7998842
Removing image: 99% 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.
2014-08-07 11:25:42.793275 7faf8c58b760 -1 librbd: error removing
header: (16) Device or resource busy
I google this problem and find this
http://comments.gmane.org/gmane.comp.file-systems.ceph.user/9767
I did it and got this:
[root@ceph-node3 ~]# rbd info -p glance
volume-17d9397b-d6e5-45e0-80fa-4bc7b7998842
rbd image 'volume-17d9397b-d6e5-45e0-80fa-4bc7b7998842':
size 51200 MB in 12800 objects
order 22 (4096 kB objects)
block_name_prefix: rbd_data.3b1464f8e96d5
format: 2
features: layering
[root@ceph-node3 ~]# rados -p glance listwatchers
rbd_header.3b1464f8e96d5
watcher=192.168.39.116:0/1032797 client.252302 cookie=1
192.168.39.116 is my nova compute node ,so i can't reboot this server,
what can i do to delete this volume without reboot my compute-node?
my ceph version is 0.72.1.
thanks very much!
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