admin 管理员组

文章数量: 1086019


2024年4月14日发(作者：html让h1标签居中)

mysql主从模式原理

## Replication Basics.

Replication plays a critical role in ensuring high

availability and scalability in database systems. It is the

process of maintaining multiple copies of data on multiple

servers, such that updates made to one server are

automatically propagated to the others.

In MySQL, replication is implemented using a master-

slave architecture. The master server is the primary source

of data, while the slave servers are replicas that receive

updates from the master. This architecture provides several

benefits, including:

High availability: If the master server fails, one of

the slave servers can be promoted to master, ensuring that

data is always accessible.

Scalability: Slave servers can be used to distribute

read traffic, reducing the load on the master server and

improving overall performance.

Data redundancy: Slave servers provide a backup copy

of the data, reducing the risk of data loss in the event of

a hardware failure or software error.

## Replication Process.

The replication process involves three main components:

1. Binlog: The binary log is a file on the master

server that contains a record of all changes made to the

database.

2. I/O Thread: The I/O thread on the master server

reads changes from the binlog and sends them to the slave

servers.

3. SQL Thread: The SQL thread on the slave servers

receives changes from the master server and applies them to

the local database.


本文标签： 模式 标签 原理 居中

版权声明：本文标题：mysql主从模式原理 内容由网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：http://www.roclinux.cn/p/1713087027a619190.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。