MySQL 5.7.13主从同步（复制）配置

 

主从同步是分布式mysql数据库相当重要的配置，现在我在虚拟机上完成主从配置，mysql版本是5.7.13

主服务器的ip是192.168.19.139 副服务器的ip是192.168.19.142

1.主服务器配置

(1)修改my.cnf(注意使用root)

vim /etc/my.cnf

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

log-bin=mysqlbin-log

server_id=1

basedir=/home/mysql

user=mysql

datadir=/home/mysql/data

port=3306

innodb_flush_log_at_trx_commit=1

sync_binlog=1

log-slave-updates

(2)进入mysql安装目录下的bin，启动mysql

cd /home/mysql/bin 2 ./mysqld

(3)重开启mysql客户端，进入mysql安装目录下的bin，授权副服务器主从复制，用mysqld的好处是可以查看错误。

./mysql -uroot -p 2 mysql> grant replication slave on *.* to test@192.168.19.142 identified by '123';

(4)显示主服务器状态

mysql> show master status;

+---------------------+----------+--------------+------------------+-------------------+

| File                | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |

+---------------------+----------+--------------+------------------+-------------------+

| mysqlbin-log.000019 |    1290 |              |                  |                  |

+---------------------+----------+--------------+------------------+-------------------+

2.副服务器配置

(1)修改my.cnf(注意使用root)

vim /etc/my.cnf

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLE

user=mysql

server_id = 2

replicate-do-db = sbfxd

master-info-file = master.info

relay-log = relay-relay-bin

relay-log-index = relay-relay-bin.index

relay-log-info-file=relay-relay-log.info

(2)进入mysql安装目录下的bin，启动mysql

cd /home/mysql/bin 2 ./mysqld

(3)重开启mysql客户端，进入mysql安装目录下的bin，设置slave属性并开始服务

./mysql -uroot -p

mysql> change master to master_host='192.168.19.139',master_port= 3306, master_log_file='mysqlbin-log.000019', master_log_pos= 1290, master_bind='', master_user='test',master_password='123';

mysql> start slave;

(4)显示副服务器的状态

show slave status \G;

            Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.19.139

                  Master_User: test

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysqlbin-log.000019

          Read_Master_Log_Pos: 1290

              Relay_Log_File: relay-relay-bin.000002

                Relay_Log_Pos: 323

        Relay_Master_Log_File: mysqlbin-log.000019

            Slave_IO_Running: Yes

            Slave_SQL_Running: Yes

              Replicate_Do_DB: sbfxd

          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: 1290

              Relay_Log_Space: 530

              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: 05408021-5ab2-11e6-869b-000c293990c1

            Master_Info_File: /home/mysql/data/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:

出现两个yes表示slave可以跑了

3.注意事项：

(1)楼主的虚拟机是通过克隆产生的，所以不需要对mysql进行备份，然后在副服务器上恢复，这步对于数据库极其重要，否则就会出现如下错误:

 

2016-08-17T03:11:27.579193Z 5 [ERROR] Slave SQL for channel '': Error executing row event: 'Table 'sbfxd.sbtable' doesn't exist', Error_code: 1146

 

2 2016-08-17T03:11:27.584268Z 5 [Warning] Slave: Table 'sbfxd.sbtable' doesn't exist Error_code: 1146

(2)如果将主服务器的属性配错了需要stop slave，然后设置好之后start slave