Athento allows scalability in two ways:
Horizontally: It is possible to increase the resources for the Athento’s instances. These resources can be for example Database nodes or Elastic Search nodes (indexation engine) .
Vertically: It is possible to increase the number of Instances or nodes for the cluster. These nodes work with load balancers that allow to distribute the work between the different nodes. The cluster can be expanded as required. In this expansion of the cluster the use of several datacenters can be considered.