[ClusterLabs] Limiting number of nodes that can join into a cluster

[Christine Caulfield]

On 28/06/16 13:27, Nikhil Utane wrote:
> Hi Klaus,
> 
> I am using multicast to avoid having to configure the host names.
> 

To be honest, if you're serious about keeping the number of nodes down,
then careful management is the way to do it, looking for a technical fix
is not the answer. Yes, you could reduce the #define in corosync, but
you risk hitting previously unknown bugs that might be caused by that
number being hit for real.


Chrissie

> -Thanks
> Nikhil
> 
> On Tue, Jun 28, 2016 at 5:53 PM, Klaus Wenninger <kwenning at redhat.com
> <mailto:kwenning at redhat.com>> wrote:
> 
>     On 06/28/2016 01:18 PM, Nikhil Utane wrote:
>     > Hi,
>     >
>     > I want to limit the number of nodes that can form a cluster to single
>     > digit (say 6). I can do it using application-level logic but would
>     > like to know if there is any option in Corosync that would do it for
>     > me. (Didn't find one).
>     Going unicast you have full control over who is in your cluster and who
>     is not...
>     Not the direct answer to your question but maybe it solves your problem
>     though.
>     > If there is some #define, can I change it without any side-effect?
>     >
>     > -Thanks
>     > Nikhil
>     >
>     >
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