MYSQL Master/Slave: Master (new instance)-master (new instance, read-only) 1. One machine installs two instances (3307 and 3308) According to babaoqi. iteye. build mysqld3308 using comadminblogs1954110 method II. Build dual master: 3307, 3308 (read-only) # disable two mysql services servicemysqld3307stop; servicemysqld3308stop
MYSQL Master/Slave: Master (new instance)-master (new instance, read-only) 1. install two instances on one machine (3307 and 3308) at http://babaoqi.iteye.com/admin/blogs/1954110 build mysqld3308 and set up dual masters: 3307, 3308 (read-only) # disable two mysql Services service mysqld3307 stop; service mysqld3308 stop
MYSQL Master/Slave: Master (new instance)-master (new instance, read-only)
1. install two instances on one machine (3307 and 3308)
Follow http://babaoqi.iteye.com/admin/blogs/1954110.pdf to build mysqld3308
2. Set up dual-MASTER: 3307, 3308 (read-only)
# Disable two mysql services
Service mysqld3307 stop; service mysqld3308 stop;
# Configure 3307 my. cnf
Vim/home/bbq/mysql/mysql-3307/cnf/my. cnf
Log-bin = mysql-bin
Binlog_format = mixed
Auto_increment_increment = 2
Auto_increment_offset = 1
# Run show slave hosts on the master database to display and use
Report_host = localhost # local address
Report_port = 3307 # current instance Port
Log_slave_updates
Servers-id = 3307
# Configure 3308 my. cnf
Vim/home/bbq/mysql/mysql-3308/cnf/my. cnf
Log-bin = mysql-bin
Binlog_format = mixed
Auto_increment_increment = 2
Auto_increment_offset = 2
Read_only
# Run show slave hosts on the master database to display and use
Report_host = localhost # local address
Report_port = 3308 # current instance Port
Log_slave_updates
Servers-id = 3308
# Start two mysql services
Service mysqld3307 start; service mysqld3308 start;
# Enter the root directory of the two instances
Cd/home/bbq/mysql
# Authorize a synchronization account
Mysql-3307/install/bin/mysql-uroot-ppwd-e "grant replication slave on *. * to 'repl' @ '%' identified by 'repl @ pwd'; flush privileges ;"
Mysql-3308/install/bin/mysql-uroot-ppwd-e "grant replication slave on *. * to 'repl' @ '%' identified by 'repl @ pwd'; flush privileges ;"
# Generate a new binlog
Mysql-3307/install/bin/mysql-uroot-ppwd-e "FLUSH binary logs ;"
Mysql-3308/install/bin/mysql-uroot-ppwd-e "FLUSH binary logs ;"
# Set the start position of synchronization. Run 'show MASTER status' on 3307 and 3308 respectively to record File and Position
# Change master to master_host = 'master database ip', master_port = master database port, master_user = 'synchronization account name', master_password = 'synchronization account password', master_log_file = 'master-file ', master_log_pos = master-Position;
# This example File = mysql-bin.000003, Position = 107
Mysql-3307/install/bin/mysql-uroot-ppwd-e "change master to master_host = 'localhost', master_port = 3308, master_user = 'repl ', master_password = 'repl @ pwd', master_log_file = 'mysql-bin.000003 ', master_log_pos = 107 ;"
Mysql-3308/install/bin/mysql-uroot-ppwd-e "change master to master_host = 'localhost', master_port = 3307, master_user = 'repl ', master_password = 'repl @ pwd', master_log_file = 'mysql-bin.000003 ', master_log_pos = 107 ;"
# View synchronization status
Mysql-3307/install/bin/mysql-uroot-ppwd-e "start slave; select sleep (1); show slave status \ G ;"
Mysql-3308/install/bin/mysql-uroot-ppwd-e "start slave; select sleep (1); show slave status \ G ;"
If both the SQL thread (Slave_IO_Running) and I/O thread (Slave_ SQL _Running) are displayed as YES, the setup is successful.
