docker中mysql配置主从
创建文件夹&编辑my.cnf内容
mkdir -p /opt/docker/mysql-8.0/master/cnf
mkdir -p /opt/docker/mysql-8.0/master/data
vim /opt/docker/mysql-8.0/master/cnf/mysql.cnf
[mysqld]
## 设置server_id,注意要唯一
server-id=1
## 开启binlog
log-bin=mysql-bin
## binlog缓存
binlog_cache_size=1M
## binlog格式(mixed、statement、row,默认格式是statement)
binlog_format=mixed
mkdir /opt/docker/mysql-8.0/slave1/cnf -p
mkdir /opt/docker/mysql-8.0/slave1/data -p
vim /opt/docker/mysql-8.0/slave1/cnf/mysql.cnf
[mysqld]
## 设置server_id,注意要唯一
server-id=2
## 开启binlog,以备Slave作为其它Slave的Master时使用
log-bin=mysql-slave-bin
## relay_log配置中继日志
relay_log=edu-mysql-relay-bin
## 如果需要同步函数或者存储过程
log_bin_trust_function_creators=true
## binlog缓存
binlog_cache_size=1M
## binlog格式(mixed、statement、row,默认格式是statement)
binlog_format=mixed
## 跳过主从复制中遇到的所有错误或指定类型的错误,避免slave端复制中断
## 如:1062错误是指一些主键重复,1032错误是因为主从数据库数据不一致
slave_skip_errors=1062
mkdir /opt/docker/mysql-8.0/slave2/cnf -p
mkdir /opt/docker/mysql-8.0/slave2/data -p
vim /opt/docker/mysql-8.0/slave2/cnf/mysql.cnf
[mysqld]
## 设置server_id,注意要唯一
server-id=3
## 开启binlog,以备Slave作为其它Slave的Master时使用
log-bin=mysql-slave-bin
## relay_log配置中继日志
relay_log=edu-mysql-relay-bin
## 如果需要同步函数或者存储过程
log_bin_trust_function_creators=true
## binlog缓存
binlog_cache_size=1M
## binlog格式(mixed、statement、row,默认格式是statement)
binlog_format=mixed
## 跳过主从复制中遇到的所有错误或指定类型的错误,避免slave端复制中断
## 如:1062错误是指一些主键重复,1032错误是因为主从数据库数据不一致
slave_skip_errors=1062
启动docker容器，本次版本为8.0
docker run -itd -p 3101:3306 --name master -v /opt/docker/mysql-8.0/master/cnf:/etc/mysql/conf.d \
-v /opt/docker/mysql-8.0/master/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 mysql:8.0
docker run -itd -p 3102:3306 --name slaver -v /opt/docker/mysql-8.0/slave1/cnf:/etc/mysql/conf.d \
-v /opt/docker/mysql-8.0/slave1/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 mysql:8.0
docker run -itd -p 3103:3306 --name slaver1 -v /opt/docker/mysql-8.0/slave2/cnf:/etc/mysql/conf.d \
-v /opt/docker/mysql-8.0/slave2/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 mysql:8.0
首先主服务器上查看master_log_file、master_log_pos两个参数，然后切换到从服务器上进行主服务器的连接信息的设置
[root@128 /]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d1719ff15b21 postgres:latest "docker-entrypoint.s…" 44 minutes ago Up 43 minutes 0.0.0.0:5432->5432/tcp, :::5432->5432/tcp postgres b4e746e59cfc mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3103->3306/tcp, :::3103->3306/tcp slaver1 59d0ba2f9ba1 mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3102->3306/tcp, :::3102->3306/tcp slaver fce67889be45 mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3101->3306/tcp, :::3101->3306/tcp master [root@128 /]# docker exec -it fce67889be45 bash bash-4.4# mysql -uroot -p123456 mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 25 Server version: 8.0.31 MySQL Community Server - GPL Copyright (c) 2000, 2022, Oracle and/or its affiliates. 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 | 197972 | | | | +------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec)
查看master ipaddess
[root@128 /]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d1719ff15b21 postgres:latest "docker-entrypoint.s…" 45 minutes ago Up 45 minutes 0.0.0.0:5432->5432/tcp, :::5432->5432/tcp postgres
b4e746e59cfc mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3103->3306/tcp, :::3103->3306/tcp slaver1
59d0ba2f9ba1 mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3102->3306/tcp, :::3102->3306/tcp slaver
fce67889be45 mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3101->3306/tcp, :::3101->3306/tcp master
[root@128 /]# docker inspect --format='{{.NetworkSettings.IPAddress}}' master
172.17.0.3
配置从slave：
[root@128 /]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d1719ff15b21 postgres:latest "docker-entrypoint.s…" 46 minutes ago Up 46 minutes 0.0.0.0:5432->5432/tcp, :::5432->5432/tcp postgres b4e746e59cfc mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3103->3306/tcp, :::3103->3306/tcp slaver1 59d0ba2f9ba1 mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3102->3306/tcp, :::3102->3306/tcp slaver fce67889be45 mysql:8.0 "docker-entrypoint.s…" 18 hours ago Up 18 hours 33060/tcp, 0.0.0.0:3101->3306/tcp, :::3101->3306/tcp master [root@128 /]# docker exec -it 59d0ba2f9ba1 bash bash-4.4# mysql -uroot -p123456 mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 22 Server version: 8.0.31 MySQL Community Server - GPL Copyright (c) 2000, 2022, Oracle and/or its affiliates. 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='172.17.0.3',master_user='root',master_password='123456',master_log_file='mysql-bin.000003',master_log_pos=197972 ;
mysql> stop slave;
Query OK, 0 rows affected, 1 warning (4.63 sec)
mysql> stare slave;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'stare slave' at line 1
mysql> start slave;
Query OK, 0 rows affected, 1 warning (0.86 sec)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for source to send event
Master_Host: 172.17.0.3
Master_User: root
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 197972
Relay_Log_File: edu-mysql-relay-bin.000003
Relay_Log_Pos: 326
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: 197972
Relay_Log_Space: 198524
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: 2c7d7555-81d7-11ed-80f1-0242ac110003
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Replica 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:
Master_public_key_path:
Get_master_public_key: 0
Network_Namespace:
1 row in set, 1 warning (0.02 sec)
查看其中的参数
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
则显示为配置成功
本文来自博客园，作者：diligently，转载请注明原文链接：https://www.cnblogs.com/luo12828-foxmail/p/17000253.html
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