On Fri, Jun 9, 2017 at 12:07 PM, Sage Weil <s...@newdream.net> wrote: > On Thu, 8 Jun 2017, Sage Weil wrote: >> Questions: >> >> - Does anybody on the list use a non-default cluster name? >> - If so, do you have a reason not to switch back to 'ceph'? > > It sounds like the answer is "yes," but not for daemons. Several users use > it on the client side to connect to multiple clusters from the same host. >
I thought some folks said they were running with non-default naming for daemons, but if not, then count me as one who does. This was mainly a relic of the past, where I thought I would be running multiple clusters on one host. Before long I decided it would be a bad idea, but by then the cluster was already in heavy use and I couldn't undo it. I will say that I am not opposed to renaming back to ceph, but it would be great to have a documented process for accomplishing this prior to deprecation. Even going so far as to remove --cluster from deployment tools will leave me unable to add OSDs if I want to upgrade when Luminous is released. > Nobody is colocating multiple daemons from different clusters on the same > host. Some have in the past but stopped. If they choose to in the > future, they can customize the systemd units themselves. > > The rbd-mirror daemon has a similar requirement to talk to multiple > clusters as a client. > > This makes me conclude our current path is fine: > > - leave existing --cluster infrastructure in place in the ceph code, but > - remove support for deploying daemons with custom cluster names from the > deployment tools. > > This neatly avoids the systemd limitations for all but the most > adventuresome admins and avoid the more common case of an admin falling > into the "oh, I can name my cluster? cool! [...] oh, i have to add > --cluster rover to every command? ick!" trap. > Yeah, that was me in 2012. Oops. -Erik > sage > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
