How to separate reading and writing in mysql

MySQL read-write separation is a database architecture that divides the database into a master database and a slave database. The master database is responsible for write operations, and the slave database is responsible for read operations, so as to reduce the load of the master database and improve concurrent reading capabilities. Implementing MySQL read-write separation requires: setting up a master-slave replication environment, modifying application configuration, and using agents or middleware. The advantages of reading and writing separation include: reducing the main library load, improving concurrent reading capabilities, and providing data backup. It should be noted that read and write separation is suitable for scenarios where there are far more read operations than write operations.

MySQL read-write separation

Read-write separation is a database architecture that divides the database into the main database and From the slave library, the master library is responsible for writing operations, and the slave library is responsible for reading operations. This architecture can effectively reduce the load on the main database and improve the concurrent reading capabilities of the database.

How to achieve MySQL read and write separation?

The following steps are required to implement MySQL read-write separation:

1. Build a master-slave replication environment: Set up master-slave replication on the master database and slave database relationship to ensure that the slave database can synchronize the data of the master database in real time.
2. Modify the application configuration: Configure read-write separation in the application, specify the main library for write operations, and the slave library for read operations.
3. Use a proxy or middleware: You can use a proxy or middleware to manage read and write separation and automatically route read and write requests.

Advantages of read-write separation:

• Reduce the load of the main library: Transfer read operations to the slave library, you can Greatly reduce the load on the main library and avoid affecting the performance of read operations during peak writing periods.
• Improve concurrent reading capabilities: The slave library can handle multiple read requests at the same time, improve the concurrent reading capabilities of the database, and meet the read operation requirements in large concurrency scenarios.
• Data backup: The slave library can be used as a backup of the main library. When the main library fails, it can quickly switch to the slave library to continue providing read services.

Notes:

• Ensure that master-slave replication works properly to avoid data inconsistency.
• During peak writing periods, the load on the main library may increase, affecting the performance of read operations.
• Read-write separation is only applicable to scenarios where there are far more read operations than write operations. For scenarios with many write operations, read-write separation is not suitable.

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