Automatic scale out occurs when the average CPU utilization or number of connections of the DB container exceeds the threshold.

The maximum number of replica containers, excluding the master container, is 15.

If the load decreases after the number of replicas increases due to a temporary increase in load, the number of replicas will remain increased. Perform manual scale in if necessary.

Specify spec.fepChildCrVal.autoscale.scaleout in FEPClusterCR when you want to perform Automatic scale out. Refer to "FEPCluster Parameters" in the Reference for information about the values to specify.

$ oc edit fepcluster <FEPClusterCR name>