[Pacemaker] Max number of nodes in a Pacemaker/Openais cluster?

lists at unimitated.com lists at unimitated.com
Sun Jul 26 18:14:32 EDT 2009


Is there a size that I should keep the CIB xml file from exceeding?  Thanks.

Quoting Andrew Beekhof <andrew at beekhof.net>:

> The relevant metric is nodes * resources.
> When the compressed CIB size exceeds corosync's maximum message size,
> thats when the cluster is going to experience trouble.
>
> On Fri, Jul 24, 2009 at 6:36 PM, <lists at unimitated.com> wrote:
>> What is the general maximum number of nodes I can realistically support in a
>> cluster with pacemaker and openais?  If I wanted to do something like 100
>> nodes supporting a set of resources in a reliable network, could I make that
>> work or will I have a lot of problems keeping things up, failing, etc.?
>>
>> Thanks for any insight.
>>
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