Heapster is an open-source metrics collection system that is used for performance monitoring and is compatible with Kubernetes versions 1.0.6 and above. It ensures the collection of performance metrics about specific workloads, pods, nodes and containers. In addition, it also allows for the collection of metrics during events and other signals being generated by your cluster. It helps and supports multiple backends for persisting the data.

BY Best Interview Question ON 26 Jan 2020