Mysql5.7 master-slave database deployment (offline deployment)

 Mysql5.7.24tar

link ：https://pan.baidu.com/s/1W21ew4LY_i3AGMzALho1zw?pwd=1234 
Extraction code ：1234 
 

Linux CentOS7 7.6_1810

link ：https://pan.baidu.com/s/1NV4MjfORIj290Q3scy6iYQ?pwd=pzse 
Extraction code ：pzse

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You need two databases with the same version mysql

2. Installation steps

When the formal environment is deployed , Keep the data of master database and slave database consistent in advance

Main library

modify mysql The configuration file ：vi /etc/my.cnf

newly added ：

server-id = 1                              Unique code of the service

log-bin = mysql-bin                         Turn on mysql,binlog function

binlog_format = ROW binlog                 The way of recording （ROW Record each line ）

binlog_row_image = minimal                 Reduce the amount of logging , Only the affected columns are recorded

binlog-do-db = The name of the database that needs data synchronization      Specify the database name that needs data synchronization

Restart the database ：service mysql restart

Enter the database background ：cd /usr/local/mysql/bin

Log on to the terminal ：./mysql -uroot -p123456( Here is mysql Account and password )

Create an account and password for the synchronization database ：

grant replication slave on *.* to ' user id'@' From database ip Address ' identified by ' User password ';

Refresh database ：flush privileges;

Check the database status ：show master status\G;

Record the values in the figure , From the library, you need to use

Slave Library

modify mysql To configure ：vi /etc/my.cnf

newly added ：

server-id = 2                              Unique code of the service

log-bin = mysql-bin                         Turn on mysql,binlog function

binlog_format = ROW binlog                 The way of recording （ROW Record each line ）

binlog_row_image = minimal                 Reduce the amount of logging , Only the affected columns are recorded

binlog-do-db = The name of the database that needs data synchronization      Specify the database name that needs data synchronization

Restart the database ：service mysql restart

Enter the database background ：cd /usr/local/mysql/bin

Log on to the terminal ：./mysql -uroot -p123456( Here is mysql Account and password )

Set the login account and password of the main database 、 Synchronize location information, etc ：

change master to master_host=’ Main library IP Address ’,master_user=’ user id’,master_password=’ User password ’,master_log_file=’ Put the main warehouse File Fill in the value after ’,master_log_pos=Position Fill in the value after

Turn on the synchronization function ：start slave;

 

View synchronization status ：show slave status\G;

（ As shown in the figure, the master-slave configuration is successful ）

Enter the visualization tool test synchronization ：

Any new table created in the set database will be synchronized into the slave database

Modifying any information will also be synchronized into the slave database

Mysql The master-slave is to synchronize the data of the master database to the slave database in real time , It can also be understood that it will be active and standby , In the active / standby architecture system, only the primary database provides services , The slave library is only used for real-time data backup ; Another concept that can be extended here is the dual master architecture , Dual master architecture is also called dual active architecture in storage , Common in 3DC（ Three centers in different places ）

3DC： It is divided into production business centers , Local disaster backup center and remote disaster backup center , Three centers are three data centers with the same infrastructure （ Computer room ）.