[Pacemaker] group resource starting parallel

[Dejan Muhamedagic]

Hi,

On Thu, Jun 06, 2013 at 09:01:33AM +0200, Florian Crouzat wrote:
> Le 05/06/2013 16:23, Wolfgang Routschka a écrit :
> >Hi Guys,
> >
> >one question about group  resource for starting parallel configuring with crmshell (Scientific Linux 64
> >with pacemaker 1.1.8-7, cman-3.0.12.1-49 and crmsh-1.2.5-55).
> >
> >in my 2 node cluster I´ll configured a group with 40 ip-address resources for easy managing. Now I want that
> >start the resources parallel.
> >
> >in my crmshell I cannot use the option "meta ordered=false"  - these option is no longer disponse for my information
> >
> >Afte searching i found "resource sets" so I hope it´s correct for my way  to parallel my resources but I
> >can´t configure resource sets in crmshell in my opinion.
> >
> >How can I configure my resources to start parallel?
> >
> >Greetings Wolfgang
> 
> Well, as one the primary author of pacemaker once said[1] "Unordered
> and/or uncolocated groups are an abomination."
> 
> I don't know if his position has moved but a group beeing a syntaxic
> shortcut for ordering+collocation, trying to make it behave
> otherwise might not be a good idea, even if I understand your need
> to address a group of 40 resources in a command.
> 
> Question: the couple seconds (if not a single second) required to
> start synchronously 40 IPaddr2 RA are too long to wait for you ? Why
> do you /must/ start them in parallel ?

That's what a resource set is for. Just define a collocation with
those 40 IP address resources.

Thanks,

Dejan


> [1] - http://oss.clusterlabs.org/pipermail/pacemaker/2011-January/008969.html
> 
> 
> -- 
> Cheers,
> Florian Crouzat
> 
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> 
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org