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MYSQL master-slave replication deployment process

2025-04-07 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >

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Environmental preparation:

Deploy one master, one slave and two servers to achieve master-slave replication. Binlog should be enabled for the master library, and the Server-id for the master library and slave library should be different.

Main library:

[root@db01 ~] # hostname-I10.0.0.51 172.16.1.51 [root@db01 ~] # egrep "log_bin | server-id" / etc/my.cnf server-id = 1 # master library Server-idlog_bin = mysql-bin # enable binlog slave library: [root@db02 ~] # hostname-I10.0.52 172.16.1.52 [root@db02 ~] # egrep "server-id" / etc/ My.cnf server-id = 2 # Server-id of slave library

Main library operation:

1. Create a user for master-slave connection

Mysql > grant replication slave on *. * to 'rep'@'172.16.1.%' identified by' 123456 is not MySQL > flush privileges;mysql > select user,host from mysql.user

2. Lock the table and prohibit data writing

Mysql > flush table with read lock

3. Open a new window to export the main database data.

[root@db01] # mysqldump-A-B-master-data=2 > / opt/3306.sql

4. Unlock and open the user write function

Mysql > unlock tables

5. Copy the backup data of the master database to the slave database

[root@db01 ~] # scp / opt/3306.sql 172.16.1.52:/opt/

From the library operation:

1. Import the complete equipment of the master library to the slave library.

[root@db02 ~] # mysql start slave;mysql > show slave status\ G

The following status message appears, indicating that the master-slave replication configuration is successful

Slave_IO_Running: YesSlave_SQL_Running: YesSeconds_Behind_Master: 0

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