Amazon ElastiCache is a managed cache service that improves latency and throughput for read-intensive applications. Amazon ElastiCache provides a caching layer for your applications. Instead of querying the databases each time, you can use a caching layer in front of the database layer to get higher query performance.

Each node runs an instance of either Memcached or Redis. However, each node in the cluster is of the same instance type and runs the same caching engine. You basically launch the cluster, get the node names, and then connect the client to it. No changes are required in your application code to access ElastiCache, and you can use your existing Redis and Memcached libraries to connect to the ElastiCache's Redis or Memcached clusters, respectively.

Amazon is responsible for tasks such as provisioning hardware, installing caching software, patch management, failure detection, and recovery. Supported in-memory caching engines are Memcached and Redis. ElastiCache...