1、把3306的整个data目录打包一份，放在一个新目录下mysql3307
2、然后把my.cnf 复制一份mysql3307.cnf
3、复制的时候有可能是root用户，之后把mysql3307里边的所属组全部改成msyql.mysql
配置文件在
[mysqld] sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES [mysqld] default_password_lifetime=0 port = 3307 #socket=/tmp/mysql1.sock socket=/tmp/mysql3307.sock basedir = /VODONE/server/mysql datadir = /VODONE/data/mysql3307 pid-file = /VODONE/data/mysql3307/mysql.pid user = mysql bind-address = 10.20.1.184 server-id = 184 init-connect = 'SET NAMES utf8' character-set-server = utf8 back_log = 1024 max_connections = 1024 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 = 8M join_buffer_size = 8M key_buffer_size = 256M thread_cache_size = 64 query_cache_type = 1 query_cache_size = 8M query_cache_limit = 2M ft_min_word_len = 4 log_bin = mysql-bin (中文解释记得删除，这个是二进制日志的文件，也就是主从的关键) binlog_format = mixed expire_logs_days = 30 log_error = /VODONE/data/mysql3307/mysql/mysql-error.log slow_query_log = 1 long_query_time = 1 slow_query_log_file = /VODONE/data/mysql3307/mysql/mysql-slow.log performance_schema = 0 explicit_defaults_for_timestamp skip-external-locking default_storage_engine = InnoDB innodb_file_per_table = 1 innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 0 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 10G myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 100 binlog-do-db =mms replicate-do-db =mms binlog-ignore-db=mysql replicate-ignore-db=mysql [mysqldump] quick max_allowed_packet = 16M [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M read_buffer = 4M write_buffer = 4M
4、
登录到mysql
# mysql -uroot -p
执行下面的命令
mysql> stop slave;
mysql> change master to master_host='192.168.70.112',master_user='root',master_password='mysql123',master_log_file='mysql-bin.000001', master_log_pos=885;
mysql> start slave;
注：其中的master_log_file和master_log_pos要和刚刚主库查询到的值一致。
查看slave状态、
mysql> show slave statusG;
到此主从配置完成了。
5、一定要记录下主数据的mysql-bin的文件，以及pos位置信息
6、（后台启动）nohup /VODONE/server/mysql/bin/mysqld_safe --defaults-file=/VODONE/data/mysql3307/mysql/mysql3307.cnf &