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在连接远程主机后键入依次以下命令：

1、docker search mysql 查找mysql镜像

2、docker pull mysql 把mysql8 镜像拉取到本地

3、在linux主机/root目录下创建conf文件夹目录，并且在这个目录里面创建master.conf跟slave.cnf文件

master文件内容：

[mysqld]

#pid-file = /var/run/mysqld/mysqld.pid

#socket = /var/run/mysqld/mysqld.sock

datadir = /var/lib/mysql

symbolic-links=0

character-set-server = utf8

#skip-networking

innodb_print_all_deadlocks = 1

max_connections = 2000

max_connect_errors = 6000

open_files_limit = 65535

table_open_cache = 128

max_allowed_packet = 4M

binlog_cache_size = 1M

max_heap_table_size = 8M

tmp_table_size = 16M

read_buffer_size = 2M

read_rnd_buffer_size = 8M

sort_buffer_size