MySQL分布式集群-2.主从集群配置

1.主节点配置

• 创建用户，赋予权限
• 开启binlog日志

mysql> create user 'repl'@'192.168.1.%' identified by 'repl';
Query OK, 0 rows affected (0.00 sec)

mysql> select user,host from mysql.user;
+------+-------------+
| user | host        |
+------+-------------+
| root | 127.0.0.1   |
| repl | 192.168.1.% |
| root | ::1         |
|      | localhost   |
| root | localhost   |
|      | master      |
| root | master      |
+------+-------------+
7 rows in set (0.00 sec)

mysql> grant replication slave on *.* to 'repl'@'192.168.1.%'identified by 'repl';
Query OK, 0 rows affected (0.00 sec)

2.从节点配置

• 配置同步日志
• 指定主节点的ip，端口，用户
• 启动从节点

vim /etc/my.cnf >> service mysqld restart

server-id=2
relay-log=/var/lib/mysql/relay-bin
relay-log-index=/var/lib/mysql/relay-bin.index

mysql> change master to master_host='192.168.1.110',master_port=3306,master_user='repl',master_password='repl',master_log_file='mysql-bin.000001',master_log_pos=0;
Query OK, 0 rows affected, 2 warnings (0.05 sec)

mysql> start slave;
Query OK, 0 rows affected (0.02 sec)

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.1.110
                  Master_User: repl
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000001
          Read_Master_Log_Pos: 120
               Relay_Log_File: relay-bin.000002
                Relay_Log_Pos: 283
        Relay_Master_Log_File: mysql-bin.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          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: 120
              Relay_Log_Space: 450
              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: 0
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 1
                  Master_UUID: ebe6e82b-8794-11e9-96f6-0800276e75ea
             Master_Info_File: /var/lib/mysql/master.info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 
            Executed_Gtid_Set: 
                Auto_Position: 0
1 row in set (0.00 sec)

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