On Thu, Jun 25, 2015 at 5:11 PM, Jan Safranek <jsafrane@xxxxxxxxxx> wrote: > I need to map an existing RBD into a docker container. I'm running > Fedora 21 both as the host and inside the container (i.e. the kernel > matches ceph user space tools) and I get this error: > > $ rbd map foo > rbd: add failed: (22) Invalid argument > > $ strace rbd map foo > ... > stat("/sys/bus/rbd", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 > open("/sys/bus/rbd/add_single_major", O_WRONLY) = 3 > write(3, "172.17.0.11:6789 name=admin,key=client.admin rbd foo", 52) = > -1 EINVAL (Invalid argument) > > Any idea what can be wrong? Note that I run ceph server in a container > too, but I guess it should not matter. I can map the same volume outside > of the container with the same settings without any problems. Network namespaces, I think. ceph kernel client currently requires init_ns namespace, which means you need to pass --net=host (or whatever it is) to docker. Thanks, Ilya _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com