Sticky sessions

We are dealing with a big deployment. We have configured SuSo behind a load balancer that distributes the load between a set of SuSo instances.

The question is : under this scenario, is it necessary to configure “sticky session” options in the load balancer ?

Suso configuration

Yes.
Please refer to Scalability of Survey Solutions

Thank you @vitalii for you response.
Under this scenario, is it mandatory to configure the IIS in Web Farm mode ?

regards

No, it’s optional and it depends on your infrastructure.
Load balancing could be implemented using different tools not only IIS and Farm mode.
But we need sticky session to process requests correctly.