[ClusterLabs] Limit the number of resources starting/stoping in parallel possible?

[Ken Gaillot]

On Mon, 2023-09-18 at 14:24 +0000, Knauf Steffen wrote:
> Hi,
> 
> we have multiple Cluster (2 node + quorum setup) with more then 100
> Resources ( 10 x VIP + 90 Microservices) per Node.  
> If the Resources are stopped/started at the same time the Server is
> under heavy load, which may result into timeouts and an unresponsive
> server. 
> We configured some Ordering Constraints (VIP --> Microservice). Is
> there a way to limit the number of resources starting/stoping in
> parallel?
> Perhaps you have some other tips to handle such a situation.
> 
> Thanks & greets
> 
> Steffen
> 

Hi,

Yes, see the batch-limit cluster option:

https://clusterlabs.org/pacemaker/doc/2.1/Pacemaker_Explained/html/options.html#cluster-options

-- 
Ken Gaillot <kgaillot at redhat.com>