Thanks for the answer, I haven't yet looked at the samba.git clone, sorry. I will. Just a quick report on my test environment: * cephfs mounted with kernel driver re-exported from 2 samba nodes * If "node B" goes down, everything works like a charm: "node A" does ip takeover and bring up the "node B"'s ip * Instead, if "node A" goes down, "node B" can't take the rlock file and gives this error: ctdb_recovery_lock: Failed to get recovery lock on '/mnt/ceph/samba-cluster/rlock' Unable to get recovery lock - aborting recovery and ban ourself for 300 seconds * So, for 5 minutes, neither "node A" nor "node B" are active. After that, the cluster recover correctly. It seems that one of the 2 nodes "owns" and don't want to "release" the rlock file I'm in a sandstill Any hint is appreciated -- Marco Aroldi 2013/3/28 Sage Weil <sage@xxxxxxxxxxx>: > On Wed, 27 Mar 2013, Matthieu Patou wrote: >> On 03/27/2013 10:41 AM, Marco Aroldi wrote: >> > Hi list, >> > I'm trying to create a active/active Samba cluster on top of Cephfs >> > I would ask if Ceph fully supports CTDB at this time. >> >> If I'm not wrong Ceph (even CephFS) do not support exporting a block device or >> mounting the same FS more than once whereas CTDB explicitly require that you >> have a distributed filesystem where the same filesystem is mounted across all >> the nodes. > > > As for CTDB: we haven't looked at this specifically in the context for > Samba. Generally speaking, anything you can do with NFS or another shared > file system you can do with CephFS. IIRC last time I discussed this with > the Samba guys, there is more we could do here to make CTDB much more > efficient (by backing it with RADOS, for example), but we haven't looked > at any of this carefully. We would love to see clustered Samba working > well on CephFS, though! If you haven't already, plese look at our > samba.git cloen on github, which has patches gluing libcephfs directly > into Samba's VFS, allowing you to directly reexport CephFS via Samba > without a local mountpoint in the middle. > > sage > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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