The following lab primarily uses ApsaraDB for Redis of Alibaba Cloud.Redis is an open source, memory-based, high-performance key-value storage system.In normal cases, website data is stored in relational databases, such as MySQL, Oracle, and SQL Server.However, as websites develop and the number of concurrent accesses increases, the disk I/O of relational databases becomes a bottleneck, slowing the website access.Redis runs in memory, and thus the data read/write speed can be increased by