Mysql5.5 master-slave (Replication) master-slave Configuration

One master and one slave:
Master:
OS: centos release 5.6 DB: mysql 5.5.8 IP: 192.168.1.2
Slave:
OS: centos release 5.6 DB: mysql 5.5.8 IP: 192.168.1.3
Modify the host Master configuration file (/etc/my. cnf)
Copy codeThe Code is as follows:
[Mysqld]
// At least two items are required: server-id and log-bin.
Server-id = 1
Log-bin =/var/lib/mysql-bin
Datadir =/var/lib/mysql
// To use the maximum persistence and consistency of the InnoDB in the transaction in the replication, you should specify the innodb_flush_log_at_trx_commit = 1, sync_binlog = 1 option
Innodb_flush_log_at_trx_commit = 1
Sync_binlog = 1

Create a user with the copy permission on the host Master.
Mysql> create user repl_user@192.168.1.3;
Mysql> grant replication slave on *. * to repl_user@192.168.1.3 identified by '2013 ';
Lock the host and record the location of the binary log (used later when the slave is set)
Mysql> flush tables with read lock;
Mysal> show master status;
File: mysql-bin.000013 Position: 7863951
Copy host database (test) to slave
Shell>/usr/bin/mysqldump test-uroot-padmin -- opt | mysql test-uroot-padmin-h 192.168.1.3
Re-enable the Master write operation function.
Mysql> unlock tables;

Modify the Slave server Slave configuration file (/etc/my. cnf)
Copy codeThe Code is as follows:
[Mysqld]
Server-id = 2 // it must be an integer between the power of 1 and the power of 2, and must be different from the server-id of the host Master.
Relay-log-index = slave-relay-bin.index
Relay-log = slave-relay-bin
Replicate-do-db = test // specify to copy the database
Datadir =/var/lib/mysql

Slave initialization and Replication
Mysql> slave stop;
Mysql> change master to master_host = '192. 168.1.2 ',
-> Master_user = 'repl _ user ',
-> Master_password = '123 ',
-> Master_log_file = 'mysql-bin.000013 ',
-> Master_log_pos = 7863951;
Enable replication
Mysql> start slave;
View copy status
Mysql> show slave status \ G
Test replication:
Perform SQL operations on the test database on the master node, and check whether the test database on the slave node generates synchronization.