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If you already know the basic commands, you can This link View specific usage Redis    Redis is the abbreviation of remote dictionary service, that is, remote dictionary service;    Redis is an in memory database (data is stored in memory, and the main data in mysql is stored in disk), KV database (key value), and data str ...

What is it? It is the Master / Slave mechanism that we often call Master-Slave replication. After the host data is updated, it is automatically synchronized to the standby machine according to the configuration and policy. The Master is mainly written and the Slave is mainly read What can I do? Read write separation Disaster recovery Ho ...

Set type of redis value basic data type 1. Why characteristic disorderduplicate removal Application scenario Collection operation. Finding intersection, union and difference sets Random events. Solve the lottery problem: 10 prize users < 10, and the winning points of users are whether to repeat or not Positive number de du ...

Architecture diagram Install Redis service wget http://download.redis.io/releases/redis-2.8.6.tar.gz tar -xvf redis-2.8.6.tar.gz cd redis-2.8.6 make mkdir /usr/local/redis/etc cp redis.conf /usr/local/redis/etc/ ps: make error resolvent: Execute the command make MALLOC=libc Modify the profile to start the service vim /usr/local/re ...

British Fleming once said: "don't wait for luck, you should try to master knowledge." 1 Preface Hello, I'm amu! Your harvest is my love, and your praise is my recognition. As a graduate with one-year development experience, we talked with the interviewer about the list type of basic data structure of redis in the previous chapter. ...

On the idea of login registration business and the realization of some codes Recently, I started the development of mobile terminal project. As I am in the background, I certainly can't avoid realizing the functions that every app should have: login and registration. At the beginning, I felt very confused. So I write a blog here to share with ...

Before reading this article, it is recommended to read the blogger's article on HashMap: HashMap source code analysis + interview questions HashSet source code analysis 1, Basic introduction The underlying implementation is based on HashMap, so it is not guaranteed to iterate according to the insertion order or other order The time-con ...

preface redis and zookeeper are the most widely used choices of distributed locks in the market. These two implementations have their own advantages. zookeeper: high availability, low performance and low concurrency. redis: high performance, medium availability and high concurrency Select the appropriate technology implementation according ...

1. Redis transaction 1.1 role of redis transaction Redis transaction is a separate isolation operation. All commands in the transaction will be serialized and executed sequentially (because of single thread + IO multiplexing). During the execution of the transaction, it will not be interrupted by the command request sent by other client ...

1, Introduction to Redis Redis is an open-source SQL database developed based on C language for the underlying code. Redis runs and persists based on memory and adopts the storage form of key value (key value pair). It is an indispensable part of the current distributed architecture Advantages of Redis It has extremely high data reading ...