Master-Slave configuration steps:
Establish the database to be synchronized in the main library, establish the account number of the main library and modify the main repository configuration
Create database Web default character set UTF8
Grant Replication Slave on * * to ' repdcssub ' @ ' 192.168.191.112 ' identified by ' 123456 ';
Grant all privileges on * * to ' repdcssub ' @ ' 192.168.191.112 ' identified by ' 123456 '
mysql-h192.168.191.113-urep-p123456
Mysqldump--master-data This can be restored from the top,
Establish a synchronous user (master/slave)
Grant Replication Slave on * * to ' Repdcs ' @ ' 192.168.191.110 ' identified by ' 123456 ';
Grant all privileges on * * to ' Repdcs ' @ ' 192.168.191.110 ' identified by ' 123456 ';
FLUSH privileges;
Mysql> Show master status;
FLUSH privileges;
Configure MY.CNF from Library
[Email protected] u02]# MORE/ETC/MY.CNF
[Mysqld]
Datadir=/u02/ligangdata
Socket=/var/lib/mysql/mysql.sock
User=mysql
Old_passwords=1
Character-set-server=utf8
Symbolic-links=0
Lower_case_table_names=1
Default-storage-engine=innodb
#innodb_log_buffer_pool_size =2g
max_connections=300
server-id=2
init_connect= ' SET NAMES UTF8 '
Log-bin=mysqlbin
master-host=192.168.191.111
Master-user=repdcs
master-pass=123456
Master-connect-retry=60
Replicate-do-db=dcs
[Mysqld_safe]
Log-error=/u03/log/mysqld.log
Pid-file=/var/run/mysqld/mysqld.pid
[MySQL]
Default-character-set=utf8
#character-set-server=utf8
Main Library Configuration My.ini
[Email protected] log]# MORE/ETC/MY.CNF
[Mysqld]
Datadir=/u02/ligangdata
Socket=/var/lib/mysql/mysql.sock
User=mysql
Old_passwords=1
Character-set-server=utf8
# Disabling Symbolic-links is recommended to prevent assorted security risks;
Symbolic-links=0
Lower_case_table_names=1
Default-storage-engine=innodb
Server-id=1
Log-bin=mysqlbin
Innodb_flush_log_at_trx_commit=1
Sync_binlog=1
init_connect= ' SET NAMES UTF8 '
#innodb_log_buffer_pool_size =2g
max_connections=300
[Mysqld_safe]
Log-error=/u03/log/mysqld.log
Pid-file=/var/run/mysqld/mysqld.pid
[MySQL]
Default-character-set=utf8
#character-set-server=utf8
Parameter configuration Instructions
Server-id=n//Set database ID The default master server is 1 and can be set casually but cannot be duplicated if there are multiple slave servers.
IP address or domain name of the master-host=192.168.191.111//master server
master-port=3306//port number of the primary database
Master-user=repdcs//Synchronizing the database user
master-password=123456//Synchronizing the password of the database
MASTER-CONNECT-RETRY=60//If the primary server is found to be disconnected from the server, the time lag for reconnection
Replicate-do-db=dcs//Database for synchronization
Set from server to ReadOnly
MYSQL-E "set global Read_only=1;"
To view the command for the master repository to be normal or not:
SHOW SLAVE STATUS;
SHOW MASTER STATUS;
Master-slave Switch please see the next article
Configuration and procedure of MySQL master-slave configuration parameters
