Deploy MySQL Master/Slave on CentOS7 and centos7mysql

Deploy MySQL Master/Slave on CentOS7 and centos7mysql

Deploy MySQL Master/Slave on CentOS71. Connect to the MySQL master server through SecureCRT; 2. Find my. directory of the cnf file: mysql -- help | grep my. cnf General situation my. cnf is located in the/etc/directory. 3. Use vim to open the MySQL configuration file my. cnf: vim/etc/my. cnf4 locate [mysqld] and add the following configuration after it: # uniquely identifies this MySQL server. The default value is 1, generally, the end value of the IP address is server-id = 1 # binary log file name, the MySQL master server must enable this configuration log-bin = master-bin-log # Name of the database on the MySQL master server that participates in master-slave replication; If there are multiple databases, this parameter can have multiple, one in each line, segment corresponds to different database binlog-do-db = db_master_slave # index name of the binary log file in the MySQL master server log-bin-index = master-bin-log.index5 on the MySQL slave server also open my. in the cnf file, locate [mysqld] and add the following configuration after it: # uniquely identifies the MySQL server. The default value is 1, generally use the IP end value server-id = 2 # MySQL slave server log index file name relay-log-index = slave-relay-log.index # MySQL slave server log file name relay-log = slave-relay-log6 in create the database db_master_slave on the MySQL master and slave servers respectively: create database db_master_slave; 7. create user_master on the MySQL master server and set the Password Password_Master_123456: create user 'user _ master' @ '%' identified by 'password _ master_123456 '; 8. grant all permissions on the db_master_slave database to user_master on the MySQL master server: grant all on db_master_slave. * to 'user _ master' @ '%'; 9 grant the user user_master local access permission on the MySQL master server: grant all privileges on db_master_slave. * to 'user _ master' @ 'localhost' identified by 'password _ Master_123456 '; 10. Authorize the MySQL slave server on the MySQL master server to access the master server through the user_master user: grant replication slave on *. * to 'user _ master' @ '%' identified by 'password _ Master_123456 'with grant option; 11 restart the MySQL service on the MySQL master and slave servers respectively: Disable the MySQL service: service mysqld stop open MySQL service: service mysqld start
Restart the MySQL service:
Service mysql restart12 enters the database db_master_slave on the MySQL master and slave servers respectively, and creates the user table t_user: create table t_user (id int (3 ), name varchar (128); 13 check the MySQL master server status: show master status; and record the master_log_file attribute and master_log_pos attribute values; 14. Execute the following configuration on the MySQL slave service: change master to master_host = '2017. 168.1.10 ', // MySQL master server IP master_port = 3306, master_user = 'user _ Master', master_password = 'password _ Master_123456', master_log_file = 'master-bin-log.000004 ', // The value of master_log_file on the MySQL master server is master_log_pos = 654; // The value of master_log_pos on the MySQL master server is 15. In the db_master_slave database on the MySQL master server, add data as the user name t_user: mysql> insert into t_user (id, name) values (1, 'idea1'); mysql> select * from t_user; 16 add data for the user name t_user in the db_master_slave database of the MySQL slave server: mysql> insert into t_user (id, name) values (1, 'idea1'); mysql> select * from t_user; 17 how to find it on the MySQL slave server: slave_IO_running = NO, run the following command: mysql> stop slave; mysql> start slave; 18. view the server_id value in MySQL running: show variables like 'server _ id ';