Detailed introduction to master-slave separation

This article mainly introduces the example code of master-slave separation of MySQL database. Setting up read-write separation in MySQL database can enable write operations and read operations on the database to be executed on different servers, improving concurrency and corresponding speed. Introducing the MySQL database setting of read-write separation, which can enable write operations and read operations on the database to be executed on different servers, improving concurrency and response speed. Today's websites are generally larger and adopt database master-slave separation and read-write separation, which not only serves as a backup but also reduces the pressure of reading and writing the database. I have always heard of this, but I have never practiced it myself. , I have time to practice it today and record the process. For the experimental environment, I prepared two servers, one is a local computer and the other is a remote vps. There are databases installed on the two machines. I will not introduce the installation of MySQL. What needs to be noted here is: it is best to have the same version of MySQL installed. If it is inconsistent, there may be problems when the lower version reads from the higher version. It is best to keep it consistent. Main library master45.78.57.4 centos 7 Linux system, mysql version

1. Detailed explanation of the master-slave separation example code of Mysql database

Introduction: This article mainly introduces the example code of master-slave separation in MySQL database. MySQL database settings read-write separation can make the write operation and read operation of the database Operations are executed on different servers to improve concurrency and response speed.

2. Mysql optimization and index total analysis [Illustration]

Introduction: 1. Why do you always feel unconfident when people ask you about MySQL optimization knowledge? 1. Because you only answer some general tuning principles, a. For example: "Establish a reasonable index" (what Is the index reasonable?) b. "Sub-table and sub-database" (What strategy should be used to sub-table and sub-database?) c. "Master-slave separation" (What middleware should be used?) 2. There is no analysis from a detailed to quantitative level. a. If qps increased by %N? b. Has file sorting been reduced? c. How much has the number of scanned lines of statements been reduced?

3. [Cache Design] Most Is basic multi-level caching appropriate? How should it be set up?

Introduction: Recently, I want to build a first-level caching mechanism for our system. But I always feel like something is missing. Environment: Load balancing, master-slave separation, Redis stand-alone machine (can be multiple machines in the future) Current initial idea: {code...} After the user accesses the web application, set the browser cache for it, and then set the local...

4. Solution to the read-write mutex problem of Mysql (MyISAM)

Introduction: Recently, due to the database read As requests increased, a serious read-write lock problem occurred. Due to the separation of master and slave, the master server quickly completed the write operation. However, due to a large number of select queries in the slave database, these updates from the master-slave synchronization will be blocked. , insert is seriously blocked, and finally causes the load of all Mysql slave libraries to increase rapidly.

5. Solutions to problems related to read-write mutex locks in Mysql (MyISAM)

Introduction: Mysql (MyISAM)'s solution to the read-write mutex lock problem. Recently, due to the increase in database read requests, a more serious read-write lock problem has occurred. Due to the separation of master and slave, the master server quickly completed the write operation, but the slave Since the library has a large number of select queries, it will be seriously blocked by these updates and inserts from the primary and secondary synchronization, and finally cause all Mysql

6. java project connection is set to MySQL database with master-slave separation

Introduction: What are the ways to set up a Java project connection to a MySQL database with master-slave separation? Which one has better stability?

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