04.09.2013 07:16, Andrew Beekhof wrote:
> 
> On 03/09/2013, at 9:20 PM, Moullé Alain <[email protected]>
> wrote:
> 
>> Hello,
>> 
>> A simple question : is there a maximum number of resources (let's
>> say simple primitives) that Pacemaker can support at first at
>> configuration of ressources via crm, and of course after
>> configuration when Pacemaker has to monitor all the primitives ?
> 
> Simple answer: it depends
> 
>> (more precisely, could we envisage around 500 or 600 primitives, or
>> is it completely mad ? ;-) )
>> 
>> (I know it is dependant on  node power, CPU, mem, etc., but I'm
>> speaking here only of eventual Pacemaker limitations)
> 
> There is no inherent limit, the policy engine can cope with many
> thousands.
> 
> The CIB is less able to cope - for which batch-limit is useful (to
> throttle the number of operation updates being thrown at the CIB
> which limits its CPU usage). The other limit is local and cluster
> messaging sizes - once the compressed cib gets too big for either or
> both transports you can no longer even run 'cibadmin -Q'
> 
> For IPC, the limit is tuneable via the environment. For corosync, its
> high (1Mb) but (I think) only tuneable at compile time.

Are there any possibilities/plans to implement "partial" messages?
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