mysql一台机器上配置另外一个 MySQL（端口号为3307）

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 status\G;

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 &