Escalator is a batch or job optimized horizontal autoscaler for Kubernetes.
It is designed for large batch or job based workloads that cannot be force-drained and moved when the cluster needs to scale down - Escalator will ensure pods have been completed on nodes before terminating them. It is also optimized for scaling up the cluster as fast as possible to ensure pods are not left in a pending state.
Kubernetes Event-driven Autoscaling.
KEDA is a Kubernetes-based Event Driven Autoscaling component. It provides event driven scale for any container running in Kubernetes