[Openais] question stack Pacemaker/corosync on SLES11

[Tim Serong]

On 03/08/2012 07:23 PM, alain.moulle at bull.net wrote:
> Hi Darren
> And thanks. I effectively found that the stack is started with the service 
> "openais" : no more
> 'corosync' neither 'pacemaker' lsb scripts.
> But I'am surprised because I think I remind that one or two years ago, it 
> was said that corosync
> was sort of an 'extract' of openais , just to isolate needed code for 
> stack Pacemaker/corosync to
> work ... and now it seems that all is managed again by openais ... so I 
> don't completely
> understand the evolution of 'architecture'  ... but perhaps am I wrong ? 
> Could you clarify the "history" for me ?

openais 0.80.x (before the creation of corosync) shipped for SLES 11.
You started it by running /etc/init.d/openais start.

corosync 1.2.x + openais 1.1.x shipped for SLES 11 SP1.  corosync is the
core messaging layer, and openais just includes some extra magic for
OCFS2 etc.  But (on SLES at least) the /etc/init.d/openais init script
remained, even though that init script now starts corosync.

The same is true now for SLES 11 SP2 (albeit with corosync 1.4.1);
corosync is what's running, but you use the openais init script to start it.

So your history of project splits and whatnot is correct, you're just
being misled by the name of an init script :)

Regards,

Tim

> 
> 
> De :    Darren Thompson <darrent at akurit.com.au>
> A :     alain.moulle at bull.net
> Date :  07/03/2012 21:03
> Objet : Re: [Openais] question stack Pacemaker/corosync on SLES11
> 
> 
> 
> Alain
> With SLES you also need to install the OpenAIS stack as that is where the 
> init.d service comes from etc.
> Darren
> On Mar 8, 2012 2:14 AM, <alain.moulle at bull.net> wrote:
> Hi, 
> 
> In rpm corosync-1.4.1-4 on rhel are installed : 
> /etc/rc.d/init.d/corosync 
> 
> but in rpm corosync-1.4.1-0.11.29 on SLES 11, I don't have anything 
> installed 
> as init.d service, even in /etc/init.d, and I checked the rpm, there is no 
> more /etc/rc.d/init.d/corosync 
> 
> same thing for pacemaker , the rpm pacemaker-1.1.6-1.25.1 on SLES does not 
> install the lsb script 
> pacemaker as in the rpm pacemaker-1.1.6-3 on rhel 
> 
> could someone tell me how to start the stack Pacemaker/corosync service 
> with the pacemaker-1.1.6-1.25.1/corosync-1.4.1-0.11.29 on SLES 11 ? 
> 
> Many thanks 
> Alain
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> 
> 
> 
> 
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-- 
Tim Serong
Senior Clustering Engineer
SUSE
tserong at suse.com