[ClusterLabs] "Soft" dependencies using templates

Andrew Beekhof andrew at beekhof.net
Mon Aug 3 23:50:21 EDT 2015

> On 13 Jun 2015, at 5:30 am, Tom Parker <tparker at cbnco.com> wrote:
> Hello
> In my scenario i have several virtual machines acting as Authentication
> and DNS servers in my cluster.  At least one of these machines should be
> available before the others start. 
> Is there a way to create a resource order constraint that requires at
> least 1 of these servers to be up before anything else will start? 

and if all the VMs all die should the resources be stopped?
if so, you need the one-or-more logic that is part of resource sets.

> Maybe using resource templates?

templates are really just a configuration shortcut

> Thanks
> Tom
> _______________________________________________
> Users mailing list: Users at clusterlabs.org
> http://clusterlabs.org/mailman/listinfo/users
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org

More information about the Users mailing list