MySql互为主从配置文件及配置方法

时间:2022-09-21 23:35:51
# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# You can copy this file to
# /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is C:\mysql\data) or
# ~/.my.cnf to set user-specific options.
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.


# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /tmp/mysql.sock


# Here follows entries for some specific programs


# The MySQL server
[wampmysqld]
port = 3306
socket = /tmp/mysql.sock
key_buffer_size = 16M
max_allowed_packet = 1M
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
basedir=D:/wamp/bin/mysql/mysql5.6.17
log-error=D:/wamp/logs/mysql.log
datadir=D:/wamp/bin/mysql/mysql5.6.17/data


lc-messages-dir=D:/wamp/bin/mysql/mysql5.6.17/share


# Change your locale here !
lc-messages=fr_FR


# Avoid warning
explicit_defaults_for_timestamp = TRUE


# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!

#skip-networking


# Disable Federated by default
skip-federated


# Replication Master Server (default)
# binary logging is required for replication




# binary logging format - mixed recommended
#binlog_format=mixed


# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id = 1
log-bin=D:/wamp/bin/mysql/mysql5.6.17/mysqlback
binlog-do-db = backup_db
replicate-do-db = backup_db
skip-slave-start=0
# Replication Slave (comment out master section to use this)


# New for MySQL 5.6 if no slave




#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
#    the syntax is:
#
#    CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
#    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
#    where you replace <host>, <user>, <password> by quoted strings and
#    <port> by the master's port number (3306 by default).
#
#    Example:
#
#    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
#    MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
#    start replication for the first time (even unsuccessfully, for example
#    if you mistyped the password in master-password and the slave fails to
#    connect), the slave will create a master.info file, and any later
#    change in this file to the variables' values below will be ignored and
#    overridden by the content of the master.info file, unless you shutdown
#    the slave server, delete master.info and restart the slaver server.
#    For that reason, you may want to leave the lines below untouched
#    (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id       = 2
#
# The replication master for this slave - required
#master-host     =   <hostname>
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user     =   <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password =   <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port     =  <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin


# Point the following paths to different dedicated disks
#tmpdir = /tmp/
#log-update = /path-to-dedicated-directory/hostname


# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = C:\mysql\data/
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = C:\mysql\data/
#innodb_log_arch_dir = C:\mysql\data/
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 16M
#innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 5M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50


[mysqldump]
quick
max_allowed_packet = 16M


[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates


[isamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M


[myisamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M


[mysqlhotcopy]
interactive-timeout


[mysqld]
port=3306

explicit_defaults_for_timestamp = TRUE



上面是我的配置文件

配置方法如下:

server-id = 1  #每台机器不一样就行了
log-bin=D:/wamp/bin/mysql/mysql5.6.17/mysqlback #通过日志同步,所以这个目录要建一下
binlog-do-db = backup_db                                         #同步数据库 多个就写多行
replicate-do-db = backup_db                                     #同步数据库 多个就写多行
skip-slave-start=0                                                      #启动后自动启动slave模式


在mater上添加用户(如果互为主从都需要设置)
grant file,select,replication slave on *.* to 'cw'@'192.168.1.%' identified by '111111';
show master status;




在slave上执行配置(如果互为主从都需要设置)
stop slave;
CHANGE MASTER TO MASTER_HOST='192.168.1.150', MASTER_PORT=3306,MASTER_USER='cw', MASTER_PASSWORD='111111';
start slave;