Redis on Ubuntu Server 20.04 comes preinstalled with essential system components like AWS CLI, AWS CloudWatch Agent, AWS Systems Manager Agent, Python 3, and Cloud-Init. Redis, which stands for Remote Dictionary Server, is a high-speed, open-source, in-memory key-value data store. The project was initiated by Salvatore Sanfilippo, the original developer of Redis, to enhance the scalability of his Italian startup. Over time, Redis has evolved into a versatile tool, serving as a database, cache, message broker, and queue.
Redis boasts sub-millisecond response times, making it suitable for real-time applications across industries such as gaming, ad tech, financial services, healthcare, and IoT. Today, Redis is among the most popular open-source database engines and has been consistently awarded the title of “Most Loved Database” by Stack Overflow for five consecutive years. Thanks to its in-memory architecture, Redis offers exceptionally low-latency and high-throughput data access. Unlike traditional databases, it doesn’t need to access disk storage, resulting in microsecond-level engine latency. This enables Redis to support a significantly higher number of operations and achieve faster response times. In practice, Redis delivers outstanding performance, with average read and write operations taking less than a millisecond, making it a preferred choice for caching, session management, real-time analytics, geospatial applications, ride-hailing services, chat messaging, media streaming, and publish-subscribe systems.
