[Linux-cluster] Clarification...

[Andrew Beekhof]

On Fri, Dec 3, 2010 at 8:55 AM, Corey Kovacs <corey.kovacs at gmail.com> wrote:
> Folks, thanks for the info.
>
> If openais and corosync were at one time, serving the same function
> but now are separate, what is the division?

Different parts of the puzzle.
Corosync is core functionality, Openais has the implementation of the SAF APIs:
   http://www.openais.org/doku.php

>
>
> Thanks again
>
> -C
>
> On Fri, Dec 3, 2010 at 7:14 AM, Andrew Beekhof <andrew at beekhof.net> wrote:
>> On Thu, Dec 2, 2010 at 11:14 PM, Balazs Zachar <zachar at awst.at> wrote:
>>>
>>> On 12/02/2010 10:31 PM, Corey Kovacs wrote:
>>>>
>>>> I've been watching the development of the cluster stack from the
>>>> sidelines for quite some time but somewhere things got a bit mixed up
>>>> for me.
>>>>
>>>> It appears to me the following is true...
>>>>
>>>> openais, heartbeat and corosync are equivalent in terms of purpose.
>>>>
>>>
>>> AFAIK not true anymore:
>>> heartbeat is equivalent with corosync + openais (corosync was a fork of
>>> openais but now openais is an additional part for corosync)
>>> Corosync + openais is recommended. (pacemaker website)
>>>>
>>>> rgmanager and pacemaker are equivalent in terms of purpose.
>>>>
>>>
>>> True:
>>> http://sources.redhat.com/cluster/wiki/RGManagerVsPacemaker
>>>
>>>> If these are true, can someone point me to a run-down of the
>>>> differences and similarities or point me to a document?
>>>>
>>>> How does this all relate to what ships with RHEL6?
>>>>
>>>
>>> RHCS is using rgmanager in RHEL6. Pacemaker is in technology preview state
>>> (from release notes: "not fully integrated with the RHCS stack").
>>
>> Specifically there is no integration with luci yet.
>> Other than that its works just fine with the rest of the stack
>>
>>> I heard that Pacemaker is going to replace rgmanager in the future. (the
>>> source wasn't official! Maybe we will get some more official answer for this
>>> here :) )
>>
>> That is the current intention
>>
>>>
>>> Regards,
>>> Balázs
>>>>
>>>> Finally, is the wiki woefully out of date are is there a better place
>>>> to be getting information other than git repos?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Corey
>>>>
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>>>>
>>>
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