The service improves the performance of web applications by retrieving information from managed in-memory caches, instead of relying entirely on slower disk-based databases.
[2] As a web service running in the computing cloud, Amazon ElastiCache is designed to simplify the setup, operation, and scaling of Valkey, Memcached, and Redis OSS deployments.
Complex administration processes like patching software, backing up and restoring data sets and dynamically adding or removing capabilities are managed automatically.
[8][9] Using the Redis engine, ElastiCache can rapidly process time-series data, quickly selecting newest or oldest records or events within range of a point-in-time.
Amazon ElastiCache for Redis engine can use incremental counters and other tools to throttle API access to meet restrictions.
[12] Programs can use incremental counters to limit allowed quantities, such as the maximum number of students enrolled in a course or ensuring a game has at least 2 but not more than 8 players.
It allows to set up basic automated alerts and to get a visual picture of recent changes in individual metrics.