> > I want to mount ceph fs (using fuse) but /etc/fstab treats it as a local > filesystem and so tries to mount it before ceph is started, or indeed before > the network is even up. > > Also, ceph tries to start before the network is up and fails because it can't > bind to an address. I think this is because I'm using openvswitch which is > starting later. > > Anyway, controlling it all via pacemaker seems like a much smarter thing to > do as I can ensure that ceph doesn't start until the network is up (which it > will > be when pacemaker has quorum), and then the fs doesn't mount until ceph > is started and the ceph cluster has quorum and maybe until an mds is > running. > > So to do this I need ocf scripts for: > > . starting components of ceph, which appears to be provided by ceph- > resource-agents.deb, but I haven't tested yet > . checking ceph quorum - I guess I'd need to write a script for this like > existing > ping check > . checking mds is available - maybe part of the mount script > . mount using ceph-fuse. Existing fs scripts make assumptions about fs types > and parameters and don't work > > Has anyone written a 'check_ceph_quorum' script? Or a fs mount script that > is compatible with fuse? I don't want to re-invent any wheels! >
I have written a ceph_check RA that sets a value in the CIB if the ceph cluster has quorum, and another to mount the fuse fs, although I think maybe it would be better to fix the bug in the existing pacemaker RA to allow mounting fuse properly. Is anyone interested enough for me to clean it up a bit and post it? James -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
