sql optimization is a hot topic that everyone is concerned about. Whether you are in an interview or at work, you are likely to encounter

RedisMod is a series of Redis enhancement modules. With the support of RedisMod, the function of Redis will become very powerful. Currently RedisMod includes the following enhanced modules

Whether it is an IO bottleneck or a CPU bottleneck, it will eventually lead to an increase in the number of active connections to the database, which will then approach or even reach the threshold of the number of active connections that the database can carry. From the perspective of business Service, there are few or no connections available to the database

Redis is now one of the most popular NoSQL databases. Redis is an open source written in ANSI C, contains a variety of data structures, supports network, memory-based, optional persistence key-value pair storage database