基於Docker的Mycat分片及讀寫分離&Mysql兩主四從搭建
說明
- 使用一個t_test表做分片示意,分片規則使用mod-long
- 使用一個t_task_test表做分片示意,分片規則使用sharding-by-murmur-orgcode
- 採用mycat + mysql + docker-compose
- 採用2分片（2主4從）
- Mycat讀寫分離
Mysql:
userName:root
password:password
Mycat:
讀寫帳戶:
userName:root
password:password
只讀帳戶:
userName:guest
password:guest
項目下載地址:
https://github.com/baojingyu/docker-mycat-mysql.git
命令
#構建,後臺啓動並運行所有的容器
docker-compose up -d
#顯示所有容器
docker-compose ps
#進入某某容器
docker-compose exec xx容器名稱 bash
#登入mysql
mysql -u root -p
#顯示Master狀態
show master status;
#顯示Slave狀態
show slave status \G;
#S1,S2執行Master主從複製,讀取Master的binlog文件和位置信息
change master to master_host='192.18.0.2', master_user='gokuit', master_password='gokuit', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos= 154, master_connect_retry=30;
#S3,S4執行Master主從複製,讀取Master的binlog文件和位置信息
change master to master_host='192.18.0.5', master_user='gokuit', master_password='gokuit', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos= 154, master_connect_retry=30;
#同時啓動I/O 線程和SQL線程;I/O線程從主庫讀取bin log，並存儲到relay log中繼日誌文件中。SQL線程讀取中繼日誌，解析後，在從庫重放。
start slave;
#創建test_db數據庫
CREATE DATABASE IF NOT EXISTS test_db;
#顯示所有數據庫
show databases;
#重啓所有容器
docker-compose restart
開始
構建並啓動容器
[root@localhost mysql_mycat]# docker-compose up -d
Creating network "mysql_mycat_mysql" with driver "bridge"
Creating m1 ... done
Creating m2 ... done
Creating s1 ... done
Creating s2 ... done
Creating s3 ... done
Creating s4 ... done
Creating mycat ... done
顯示所有容器
[root@localhost mysql_mycat]# docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------------------------
m1 docker-entrypoint.sh mysqld Up 0.0.0.0:3307->3306/tcp, 33060/tcp
m2 docker-entrypoint.sh mysqld Up 0.0.0.0:3310->3306/tcp, 33060/tcp
mycat ./mycat console Up 0.0.0.0:8066->8066/tcp, 0.0.0.0:9066->9066/tcp
s1 docker-entrypoint.sh mysqld Up 0.0.0.0:3308->3306/tcp, 33060/tcp
s2 docker-entrypoint.sh mysqld Up 0.0.0.0:3309->3306/tcp, 33060/tcp
s3 docker-entrypoint.sh mysqld Up 0.0.0.0:3311->3306/tcp, 33060/tcp
s4 docker-entrypoint.sh mysqld Up 0.0.0.0:3312->3306/tcp, 33060/tcp
鏈接Master(主)
m1
[root@localhost mysql_mycat]# docker-compose exec m1 bash
root@169ab7da713e:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000003 | 154 | | | |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
mysql> exit
m2
[root@localhost mysql_mycat]# docker-compose exec m2 bash
root@3eb2efc9df37:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000003 | 154 | | | |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
mysql> exit
File和Position字段的值後面將會用到，在後面的操作完成之前，需要保證Master庫不能做任何操作，否則將會引起狀態變化，File和Position字段的值變化。
鏈接Slave(從)
[root@localhost mysql_mycat]# docker-compose exec s1 bash
root@3882671bea53:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 27
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> change master to master_host='192.18.0.2', master_user='gokuit', master_password='gokuit', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos= 154, master_connect_retry=30;
Query OK, 0 rows affected, 2 warnings (0.01 sec)
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 192.18.0.2
Master_User: gokuit
Master_Port: 3306
Connect_Retry: 30
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 154
Relay_Log_File: 3882671bea53-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-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: 154
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:
1 row in set (0.00 sec)
ERROR:
No query specified
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.18.0.2
Master_User: gokuit
Master_Port: 3306
Connect_Retry: 30
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 154
Relay_Log_File: 3882671bea53-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-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: 154
Relay_Log_Space: 534
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: 4a5ef558-0b9f-11ea-a7e8-0242c0120002
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:
1 row in set (0.00 sec)
ERROR:
No query specified
mysql> exit
Bye
root@3882671bea53:/# exit
s2
[root@localhost mysql_mycat]# docker-compose exec s2 bash
root@91cb062e6ca2:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 35
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> change master to master_host='192.18.0.2', master_user='gokuit', master_password='gokuit', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos= 154, master_connect_retry=30;
Query OK, 0 rows affected, 2 warnings (0.01 sec)
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.18.0.2
Master_User: gokuit
Master_Port: 3306
Connect_Retry: 30
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 154
Relay_Log_File: 91cb062e6ca2-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-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: 154
Relay_Log_Space: 534
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: 4a5ef558-0b9f-11ea-a7e8-0242c0120002
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:
1 row in set (0.00 sec)
ERROR:
No query specified
mysql> exit
Bye
root@91cb062e6ca2:/# exit
s3
[root@localhost mysql_mycat]# docker-compose exec s3 bash
root@2de6d8063972:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 40
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> change master to master_host='192.18.0.5', master_user='gokuit', master_password='gokuit', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos= 154, master_connect_retry=30;
Query OK, 0 rows affected, 2 warnings (0.01 sec)
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.18.0.5
Master_User: gokuit
Master_Port: 3306
Connect_Retry: 30
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 154
Relay_Log_File: 2de6d8063972-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-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: 154
Relay_Log_Space: 534
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: 4
Master_UUID: 4acb3ee7-0b9f-11ea-895b-0242c0120005
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:
1 row in set (0.00 sec)
ERROR:
No query specified
mysql> exit
Bye
root@2de6d8063972:/# exit
s4
[root@localhost mysql_mycat]# docker-compose exec s4 bash
root@b2fa7bf4adcd:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 44
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> change master to master_host='192.18.0.5', master_user='gokuit', master_password='gokuit', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos= 154, master_connect_retry=30;
Query OK, 0 rows affected, 2 warnings (0.01 sec)
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.18.0.5
Master_User: gokuit
Master_Port: 3306
Connect_Retry: 30
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 154
Relay_Log_File: b2fa7bf4adcd-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-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: 154
Relay_Log_Space: 534
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: 4
Master_UUID: 4acb3ee7-0b9f-11ea-895b-0242c0120005
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:
1 row in set (0.00 sec)
ERROR:
No query specified
mysql> exit
Bye
root@b2fa7bf4adcd:/# exit
創建test_db庫
M1創建test_db庫
[root@localhost mysql_mycat]# docker-compose exec m1 bash
root@169ab7da713e:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 53
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> CREATE DATABASE IF NOT EXISTS test_db;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
| test_db |
+--------------------+
5 rows in set (0.01 sec)
mysql> exit
Bye
root@169ab7da713e:/# exit
M2創建test_db庫
[root@localhost mysql_mycat]# docker-compose exec m2 bash
root@3eb2efc9df37:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 60
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> CREATE DATABASE IF NOT EXISTS test_db;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
| test_db |
+--------------------+
5 rows in set (0.00 sec)
mysql> exit
Bye
root@3eb2efc9df37:/# exit
測試主從複製
[root@localhost mysql_mycat]# docker-compose exec s1 bash
root@3882671bea53:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 55
Server version: 5.7.28-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
| test_db |
+--------------------+
5 rows in set (0.00 sec)
重啓容器
[root@localhost mysql_mycat]# docker-compose restart
Restarting mycat ... done
Restarting s4 ... done
Restarting s3 ... done
Restarting s2 ... done
Restarting s1 ... done
Restarting m2 ... done
Restarting m1 ... done
Navicat連接Mycat
-- 連接mycat成功,在test_db庫執行以下SQL語句
CREATE TABLE IF NOT EXISTS t_test (
id BIGINT(20) NOT NULL,
title VARCHAR(100) NOT NULL ,
PRIMARY KEY (id)
) ENGINE=INNODB DEFAULT CHARSET=utf8 ;
INSERT INTO t_test (id,title) VALUES ('1','test0001');
INSERT INTO t_test (id,title) VALUES ('2','test0002');
INSERT INTO t_test (id,title) VALUES ('3','test0003');
INSERT INTO t_test (id,title) VALUES ('4','test0004');
INSERT INTO t_test (id,title) VALUES ('5','test0005');
INSERT INTO t_test (id,title) VALUES ('6','test0006');
SELECT * FROM t_test;
CREATE TABLE IF NOT EXISTS t_task_test (
id BIGINT(20) NOT NULL,
org_code VARCHAR(100) NOT NULL ,
title VARCHAR(100) NOT NULL ,
PRIMARY KEY (id)
) ENGINE=INNODB DEFAULT CHARSET=utf8 ;
INSERT INTO t_task_test (id,org_code,title) VALUES ('1','W12340001','test0001');
INSERT INTO t_task_test (id,org_code,title) VALUES ('2','W12340002','test0002');
INSERT INTO t_task_test (id,org_code,title) VALUES ('3','W12340003','test0003');
INSERT INTO t_task_test (id,org_code,title) VALUES ('4','W12340004','test0004');
INSERT INTO t_task_test (id,org_code,title) VALUES ('5','W12340005','test0005');
INSERT INTO t_task_test (id,org_code,title) VALUES ('6','W12340006','test0006');
SELECT * FROM t_task_test;
補充主從複製知識點
配置Master和Slave
創建數據同步用戶
在Master數據庫創建數據同步用戶，授予用戶 gokuit REPLICATION SLAVE權限，用於在主從庫之間同步數據。
create user gokuit;
grant REPLICATION SLAVE on *.* to 'gokuit'@'%' IDENTIFIED by 'gokuit';
flush privileges;
配置Master修改my.cnf
[mysqld]
## 同一局域網內注意要唯一
server-id=100
## 開啓二進制日誌功能，可以隨便取（關鍵）
log-bin=mysql-bin
配置Slave修改my.cnf
[mysqld]
## 設置server_id,注意要唯一
server-id=101
## 開啓二進制日誌功能，以備Slave作爲其它Slave的Master時使用
log-bin=mysql-slave-bin
Mysql主從複製,CHANGE MASTER TO語法詳解
配置mysql主從複製時，在從機上需要進行CHANGE MASTER TO操作，以確定需要同步的主機IP，用戶名，密碼，binlog文件，binlog位置等信息。
語法詳解:
master_host ：Master的地址，指的是容器的獨立ip,可以通過docker inspect --format='{{.NetworkSettings.IPAddress}}' 容器名稱|容器id查詢容器的ip
master_port：Master的端口號，指的是容器的端口號
master_user：用於數據同步的用戶
master_password：用於同步的用戶的密碼
master_log_file：指定 Slave 從哪個日誌文件開始複製數據，即上文中提到的 File 字段的值
master_log_pos：從哪個 Position 開始讀，即上文中提到的 Position 字段的值
master_connect_retry：如果連接失敗，重試的時間間隔，單位是秒，默認是60秒
示例:
change master to master_host='192.18.0.2', master_user='gokuit', master_password='gokuit', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos= 154, master_connect_retry=30;