[Pacemaker] OCFS2 integration on distros that don't ship cman

Andrew Beekhof andrew at beekhof.net
Fri Apr 15 09:58:33 EDT 2011

On Fri, Apr 15, 2011 at 2:40 PM, Lars Marowsky-Bree <lmb at novell.com> wrote:
> On 2011-04-15T08:23:09, Andrew Beekhof <andrew at beekhof.net> wrote:
>> > Now, for packagers on distros that don't ship cman, is it a viable
>> > option to just package dlm_controld from
>> > git://git.fedorahosted.org/dlm.git, and ship that to support
>> > Pacemaker-managed OCFS2?
>> Yes. This is what SLES does and will presumably continue to do.
>> Err, assuming the patches are still in there.
> We ship the pacemaker-based DLM, yes.
> I'd actually not mind following this upstream path too, but I doubt it
> can be done in a rolling-upgrade fashion?
> Also, is the cman-corosync thing something to stay forever, or is it
> just an intermediate step?

intermediate.  just an alternate stepping stone to the pure corosync
version described below.

>> The only other thing to note is that eventually everything (pacemaker,
>> *FS, dlm_controld) will hook into the corosync quorum plugin instead
>> of cman or the pacemaker plugin.
> That probably answers my question above; so on SLE, we'd skip the 'cman'
> bit (and stick to pacemaker's plugin), and then directly go to the
> "fully converged upstream" in the next major release.
>> Timeline for that should be in the next year or so (after much
>> additional testing) IIUC.
> We just got ourselves a major topic for the conference in October ;-)
> Regards,
>    Lars
> --
> Architect Storage/HA, OPS Engineering, Novell, Inc.
> SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
> "Experience is the name everyone gives to their mistakes." -- Oscar Wilde
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