RBD lock on unmount

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Hi

I've set up a Ceph Cluster with and RBD storage device for use in a pacemaker/corosync cluster. When attempting to move the resources from one node to the other, the filesystem on the RBD will not unmount. lsof and fuser show no files in use on the device. I thought this may be an issue with an NFS lock, so I moved the ceph OSD and monitor off the machine where the filesystem is mounted to a virtual machine, however I'm still unable to unmount the filesystem.

Is this a known issue with RBD filesystem mounts? Is there a system change I need to make in order to get the filesystem to reliably unmount?

Thanks in advance,

--
Joshua Collins
Systems Engineer
VRT Systems
38b Douglas Street
Milton QLD 4064
T  +61 7 3535 9615
F  +61 7 3535 9699
E  joshua.collins@xxxxxxxxxx


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