What is ElastiCache cluster client?
Amazon ElastiCache Cluster Client is used to connect to ElastiCache for Memcached clusters. This client supports auto-discovery capabilities which allow you to easily manage your Memcached cluster configuration.
What is ElastiCache used for?
You can use ElastiCache for caching, which accelerates application and database performance, or as a primary data store for use cases that don't require durability like session stores, gaming leaderboards, streaming, and analytics. ElastiCache is compatible with Redis and Memcached.