[Cluster-devel] pcmk+corosync controld, dlm support without cman

[Steven Dake <sdake@redhat.com>]

On 11/01/2011 06:23 PM, Nick Khamis wrote:
> That would be really great. Is there any talk of when the next stable
> release of:
> * pcmk+corosync supporting direct communication with dlm gfs, controld
> * The separation of dlm, gfs, controld from cman
> 
> will be availabile?
> 
> Thanks in Advance,
> 
> Nick.
> 
> On Mon, Oct 31, 2011 at 4:52 AM, Andrew Beekhof <andrew@beekhof.net> wrote:
>> On Sat, Oct 29, 2011 at 3:09 AM, Nick Khamis <symack@gmail.com> wrote:
>>> Hello Gents,
>>>
>>> Thank you so much for your response. That being said, what are the
>>> plans once the next
>>> release of CMAN does not include PCMK and DLM related implementation? From what
>>> I can see, libdlm will be separated from the project completely.
>>
>> When CMAN goes away, the dlm gfs controld's will be talking directly
>> to corosync.
>> I believe the work has already been done but may need additional testing.
>>
>>>
>>> Thanks in Advance,
>>>
>>> Nick.
>>>
>>> On Fri, Oct 28, 2011 at 3:34 AM, Vladislav Bogdanov
>>> <bubble@hoster-ok.com> wrote:
>>>> 28.10.2011 04:04, Nick Khamis wrote:
>>>>> Hello Everyone,
>>>>>
>>>>> I just want to make sure this is still the case before I go through
>>>>> with it. I am trying to setup an
>>>>> active/active using:
>>>>>
>>>>> Corosync 1.4.2
>>>>> Pacemaker 1.1.6
>>>>> Cluster3
>>>>> DRBD 8.3.7
>>>>> OCFS2
>>>>>
>>>>> The only reason I installed Cluster3 was for dlm support. Fencing
>>>>> would be handled by stonithd.
>>>>> Is there any reason I need to fully install and configure two cluster
>>>>> managers. Defining nodes in
>>>>> both cman and corosync/openais?
>>>>

The developer community is targeting Fedora 17 for upstream integration
of this work.  Fedora 17 schedule hasn't been published and won't be
until F16 is finalized.  (next few weeks).  I expect other distros will
follow on once the dust settles.

Regards
-steve
.
>>>> You may look at
>>>> http://www.mail-archive.com/pacemaker at oss.clusterlabs.org/msg09959.html
>>>>
>>>> That message contains Andrew's dlm_controld patch for shortening fencing
>>>> path - it now talks directly to stonith subsystem, rebased for 3.0.17,
>>>> and some fixes to make it all compile. Some work should probably be done
>>>> to make it apply/compile on latest cluster3.
>>>>
>>>> That way I eliminate cman from stack (except some dlm-related libs) and
>>>> run cluster with stable fencing on top of corosync/openais.
>>>>
>>>> Best,
>>>> Vladislav
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>