$ 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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