$ tree . ├── master │ ├── data │ └── master.cnf └── slave ├── data └── slave.cnf
master.cnf
[mysqld] pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock datadir = /var/lib/mysql server-id=1 log-bin=master-bin
slave.cnf
[mysqld] pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock datadir = /var/lib/mysql server-id=2 log-bin=slave-bin read-only=1 relay_log=relay-bin log-slave-updates=1
启动容器
$ docker run --name mysql_master -d -e MYSQL_ROOT_PASSWORD=123456 -v ~/mysql/master/data:/var/lib/mysql -v ~/mysql/master/master.cnf:/etc/mysql/mysql.conf.d/master.cnf mysql:5.7 4e59f35dc210782351abf0e488b5060e9aa6eeccfdf170b91e38f6b2bfda53d5 $ docker run --name mysql_slave -d -e MYSQL_ROOT_PASSWORD=123456 -v ~/mysql/slave/data:/var/lib/mysql -v ~/mysql/slave/slave.cnf:/etc/mysql/mysql.conf.d/slave.cnf mysql:5.7 f2eeeacfce4a8e276c6047754a18c5c906c7f48434f0115a794875e4ca38b0c2 $ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES f2eeeacfce4a mysql:5.7 "docker-entrypoint.s…" 11 seconds ago Up 9 seconds 3306/tcp, 33060/tcp mysql_slave 4e59f35dc210 mysql:5.7 "docker-entrypoint.s…" 24 seconds ago Up 22 seconds 3306/tcp, 33060/tcp mysql_master $ docker inspect --format='{{.NetworkSettings.IPAddress}}' mysql_master mysql_slave 172.17.0.2 172.17.0.3
主库
添加复制账号
$ docker exec -it mysql_master bash root@4e59f35dc210:/# mysql -uroot -p123456 mysql> GRANT REPLICATION SLAVE ON *.* to 'replication'@'%' IDENTIFIED BY '123456'; Query OK, 0 rows affected, 1 warning (0.03 sec) mysql> SHOW WARNINGS; +---------+------+------------------------------------------------------------------------------------------------------------------------------------+ | Level | Code | Message | +---------+------+------------------------------------------------------------------------------------------------------------------------------------+ | Warning | 1287 | Using GRANT for creating new user is deprecated and will be removed in future release. Create new user with CREATE USER statement. | +---------+------+------------------------------------------------------------------------------------------------------------------------------------+
查看binlog位置
mysql> SHOW MASTER STATUS; +-------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +-------------------+----------+--------------+------------------+-------------------+ | master-bin.000003 | 444 | | | | +-------------------+----------+--------------+------------------+-------------------+
从库
配置同步信息
$ docker exec -it mysql_slave bash root@f2eeeacfce4a:/# mysql -uroot -p123456 mysql> CHANGE MASTER TO master_host='172.17.0.2',master_user='replication',master_password='123456',master_log_file='master-bin.000003',master_log_pos=444,master_port=3306; Query OK, 0 rows affected, 2 warnings (0.08 sec) -- Slave_IO_Running=No, Slave_SQL_Running=No mysql> SHOW SLAVE STATUS\G; *************************** 1. row *************************** Slave_IO_State: Master_Host: 172.17.0.2 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: master-bin.000003 Read_Master_Log_Pos: 444 Relay_Log_File: relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: master-bin.000003 Slave_IO_Running: No Slave_SQL_Running: No 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: 444 Relay_Log_Space: 154 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: NULL 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: 0 Master_UUID: Master_Info_File: /var/lib/mysql/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: 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:
开启同步
mysql> START SLAVE; Query OK, 0 rows affected (0.01 sec) -- Slave_IO_Running=Yes, Slave_SQL_Running=Yes, Seconds_Behind_Master=0 mysql> SHOW SLAVE STATUS\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 172.17.0.2 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: master-bin.000003 Read_Master_Log_Pos: 444 Relay_Log_File: relay-bin.000002 Relay_Log_Pos: 321 Relay_Master_Log_File: master-bin.000003 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: 444 Relay_Log_Space: 522 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: 97c1b378-3766-11e9-b715-0242ac110002 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 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:
验证
$ docker exec mysql_master mysql -uroot -p123456 -e "CREATE DATABASE test" $ docker exec mysql_slave mysql -uroot -p123456 -e "SHOW DATABASES" Database information_schema mysql performance_schema sys test
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