Benefits of using Redis
All Redis data resides in the server’s main memory, in contrast to databases such as PostgreSQL, SQL Server, and others that store most data on disk. Redis can therefore support higher orders of magnitude of operations and faster response times. Thus, it results in super-fast performance with average read and writes operations taking less than milliseconds, and thus accordingly supports millions of operations per second.
Redis provides an overall system that offers us caching systems in both types of architectures – monolithic and distributed, thereby making the retrieval of data faster, as the direct access operation, by key in memory(like hashtables), will reduce the overall complexity of reading the data from the original SQL Database.
Redis and its role in System Design
Redis is an open-source, in-memory data structure store used as a database, cache, and message broker. It is widely used for its fast performance, flexibility, and ease of use.
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