Once the user has set ElastiCache for an application and it is up and running, which services,
does Amazon not provide for the user:

A.
The ability for client programs to automatically identify all of the nodes in a cache cluster, and to
initiate and maintain connections to all of these nodes

B.
Automating common administrative tasks such as failure detection and recovery, and software
patching

C.
Providing default Time To Live (TTL) in the AWS Elasticache Redis Implementation for different
type of data.

D.
Providing detailed monitoring metrics associated with your Cache Nodes, enabling you to
diagnose and react to issues very quickly

Explanation:
Amazon provides failure detection and recovery, and software patching and monitoring tools
which is called CloudWatch. In addition it provides also Auto Discovery to automatically identify
and initialize all nodes of cache cluster for Amazon ElastiCache.
http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/WhatIs.html