Mysql Replication Cluster
Master-Slave
node1 — master
Edit mysqld config
[mysqld] server-id = 1 log-bin = /var/lib/mysql/mysql-bin replicate-do-db = somedb
Grand replicate permissoin to user replication on database somedb:
mysql@master> GRANT replication slave ON "somedb".* TO "replication"@"192.168.1.102" IDENTIFIED BY "password";
Then restart daemon
service mysqld restart
Set ReadOnly mode:
mysql@master> SET GLOBAL read_only = ON;
Make dump:
/usr/bin/mysqldump --single-transaction --flush-logs --routines --events somedb > master.dump
View binlog inforamation:
mysql@master> SHOW MASTER STATUS\G
File: mysql-bin.000003
Position: 98
Binlog_Do_DB:
Binlog_Ignore_DB:Remove ReadOnly mode:
mysql@master> SET GLOBAL read_only = OFF;
node2 — slave
Edit mysqld config:
server-id = 2 relay-log = /var/lib/mysql/mysql-relay-bin relay-log-index = /var/lib/mysql/mysql-relay-bin.index replicate-do-db = somedb
Then restart daemon
service mysqld restart
Restore from master dump:
mysql somedb < master.dump
Configure slave replication:
mysql@replica> CHANGE MASTER TO MASTER_HOST = "192.168.1.101 ", MASTER_USER = "replication ", MASTER_PASSWORD = "password", MASTER_LOG_FILE = "mysql-bin.000003", MASTER_LOG_POS = 98;
Start replication:
mysql@replica> start slave;
View status
mysql@replica> SHOW SLAVE STATUS\G Slave_IO_State: Waiting for master to send event Master_Host: 192.168.1.101 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 98 Relay_Log_File: mysql-relay-bin.001152 Relay_Log_Pos: 235 Relay_Master_Log_File: mysql-bin.000003 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: testdb,testdb Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 98 Relay_Log_Space: 235 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 5
Charging story 
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