• mysql主从安装简记


    安装两个 数据库版本5.7.19 

    10.168.21.180 gsm1 gsm1.localdomain
    10.168.21.181 gsm2 gsm2.localdomain

    安装软件
    配置 /etc/my.cnf
    建库 mysqld --defaults-file=/etc/my.cnf --initialize --user=mysql
    启动 mysqld_safe --defaults-file=/etc/my.cnf --user=mysql &
    更改密码 set password = password('rootroot');
    升级 mysql_upgrade -uroot -prootroot


    主库备份数据
    mysqldump --single-transaction -uroot -prootroot -A --master-data=2 > alldb.sql
    -- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000002', MASTER_LOG_POS=550;

    从库恢复数据
    scp alldb.sql gsm2:/root/backup
    mysql -uroot -prootroot <alldb.sql


    主库授权:创建备份用户
    grant replication slave on *.* to 'bak'@'10.168.%' identified by 'rootroot';
    flush privileges;


    从库配置复制起点并开始复制
    CHANGE MASTER TO
    MASTER_HOST='10.168.21.180',
    MASTER_USER='bak',
    MASTER_PASSWORD='rootroot',
    MASTER_PORT=3306,
    MASTER_LOG_FILE='mysql-bin.000002',
    MASTER_LOG_POS=550;

    start slave;

    查看状态

    mysql> show slave statusG;
    *************************** 1. row ***************************
                   Slave_IO_State: Waiting for master to send event
                      Master_Host: 10.168.21.180
                      Master_User: bak
                      Master_Port: 3306
                    Connect_Retry: 60
                  Master_Log_File: mysql-bin.000002
              Read_Master_Log_Pos: 991
                   Relay_Log_File: gsm2-relay-bin.000002
                    Relay_Log_Pos: 761
            Relay_Master_Log_File: mysql-bin.000002
                 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: 991
                  Relay_Log_Space: 967
                  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: 33001
                      Master_UUID: 8a0a909d-e469-11e7-95c0-005056b9c142
                 Master_Info_File: /data0/mysql/data/dbatest/master.info
                        SQL_Delay: 0
              SQL_Remaining_Delay: NULL
          Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
               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
             Replicate_Rewrite_DB: 
                     Channel_Name: 
               Master_TLS_Version: 
    1 row in set (0.00 sec)
    
    ERROR: 
    No query specified
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  • 原文地址:https://www.cnblogs.com/automng/p/8064916.html
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