Mysql 环形复制

三台主机: 192.168.0.205, 192.168.0.206,192.168.0.207

配置192.168.0.205
 1.edit /etc/mysql/my.cnf

          [mysqld]

log-bin=mysql-bin
server-id=5
binlog-do-db=test
binlog-ignore-db=information_schema,performance_schema,mysql
replicate-do-db=test
replicate-ignore-db=information_schema,performance_schema,mysql
log-slave-updates
slave-skip-errors=all
sync_binlog=1
auto_increment_increment=3
auto_increment_offset=1

     2.sudo service mysql restart

     3.create user 'repl'@'%' identified by 'slavepass'; grant replication slave on *.* to 'repl'@'%';

     4.show master status\G;

            File: mysql-bin.000003

            Position: 4049

配置192.168.0.206
 1.edit /etc/mysql/my.cnf

          [mysqld]

log-bin=mysql-bin
server-id=5
binlog-do-db=test
binlog-ignore-db=information_schema,performance_schema,mysql
replicate-do-db=test
replicate-ignore-db=information_schema,performance_schema,mysql
log-slave-updates
slave-skip-errors=all
sync_binlog=1
auto_increment_increment=3
auto_increment_offset=2

     2.sudo service mysql restart

     3.create user 'repl'@'%' identified by 'slavepass'; grant replication slave on *.* to 'repl'@'%';

     4. execute mysql scripts:
          1) stop slave;
          2) change master to master_host='192.168.0.205', master_user='repl',  master_password='slavepass', master_log_file='mysql-bin.000003',  master_log_pos=4049;
          3) start slave;
     5.show master status\G;

            File: mysql-bin.000001

            Position: 1142

     

配置192.168.0.207
 1.edit /etc/mysql/my.cnf

          [mysqld]

log-bin=mysql-bin
server-id=5
binlog-do-db=test
binlog-ignore-db=information_schema,performance_schema,mysql
replicate-do-db=test
replicate-ignore-db=information_schema,performance_schema,mysql
log-slave-updates
slave-skip-errors=all
sync_binlog=1
auto_increment_increment=3
auto_increment_offset=3

     2.sudo service mysql restart

     3.create user 'repl'@'%' identified by 'slavepass'; grant replication slave on *.* to 'repl'@'%';

     4. execute mysql scripts:
          1) stop slave;
          2) change master to master_host='192.168.0.206', master_user='repl',  master_password='slavepass', master_log_file='mysql-bin.000001',  master_log_pos=1142;
          3) start slave;
     5.show master status\G;

            File: mysql-bin.000002

            Position: 1234

配置192.168.0.205
     1. execute mysql scripts:
          1) stop slave;
          2) change master to master_host='192.168.0.207', master_user='repl',  master_password='slavepass', master_log_file='mysql-bin.000002',  master_log_pos=1234;
          3) start slave;