MySQL5.6 Replication主从复制（读写分离) 配置完整版

前端技术 2023/09/04 MYSQL

MySQL5.6主从复制(读写分离)教程

1、MySQL5.6开始主从复制有两种方式：

基于日志（binlog）；
基于GTID（全局事务标示符）。

需要注意的是：GTID方式不支持临时表！所以如果你的业务系统要用到临时表的话就不要考虑这种方式了，至少目前最新版本MySQL5.6.12的GTID复制还是不支持临时表的。

所以本教程主要是告诉大家如何通过日志（binlog）方式做主从复制！

2、MySQL官方提供的MySQL Replication教程：

http://dev.mysql.com/doc/refman/5.6/en/replication.html

第一步：准备工作

主服务器: 192.168.1.100
从服务器: 192.168.1.101

MySQL软件版本：

MySQL-server-advanced-5.6.18-1.el6.x86_64.rpm
MySQL-cient-advanced-5.6.18-1.el6.x86_64.rpm

第二步：在主服务器和从服务器上安装MySQL数据库软件

安装方法，请参见 http://www.phpstudy.net/article/82542.htm

MySQL数据库软件安装完成后，不要急着做mysql启动操作。建议把mysql初始化生成的/usr/my.cnf
(如果是从源文件编译安装时，路径应该是在/usr/local/mysql/mysql.cnf)删除，然后把优化好的mysql
配置文件my.cnf放到/etc下。
第三步：修改主数据库的配置文件/usr/my.cnf

http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
[client]
port=3306
socket=/usr/local/mysql/mysql.sock
default-character-set=utf8
 
[mysqld]
sync_binlog=1
server-id=1
port=3306
socket=/usr/local/mysql/mysql.sock
pid-file=/home/mysql/temp/my3306.pid
user=mysql
datadir=/home/mysql/data
tmpdir=/home/mysql/temp/
log-bin=/home/mysql/data/mysqlmaster-bin
log-error=/home/mysql/logs/error.log
slow_query_log_file=/home/mysql/logs/slow.log
binlog_format=mixed
slow_query_log
long_query_time=10
wait_timeout=31536000
interactive_timeout=31536000
max_connections=500
max_user_connections=490
max_connect_errors=2
character_set_server=utf8
skip-external-locking
key_buffer_size = 128M
max_allowed_packet = 5M
table_open_cache = 512
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size = 32M
# Try number of CPU\'s*2 for thread_concurrency
thread_concurrency = 4
binlog-ignore-db=mysql
binlog-ignore-db=information_schema
replicate_ignore_db=mysql
replicate_ignore_db=information_schema
expire-logs-days=10
skip-slave-start
skip-name-resolve
lower_case_table_names=1
log_bin_trust_function_creators=1
 
# InnoDB
innodb_data_home_dir=/home/mysql/data
innodb_log_group_home_dir=/home/mysql/logs
innodb_data_file_path=ibdata1:128M:autoextend
innodb_buffer_pool_size=2G
innodb_log_file_size=10M
innodb_log_buffer_size=8M
innodb_lock_wait_timeout=50
innodb_file_per_table
innodb_flush_log_at_trx_commit=1
 
#sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
 

 
 
一个优化好的从数据库的配置文件如下：

http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
[client]
port=3306
socket=/usr/local/mysql/mysql.sock
default-character-set=utf8
 
[mysqld]
sync_binlog=1
server-id=2
port=3306
socket=/usr/local/mysql/mysql.sock
pid-file=/home/mysql/temp/my3306.pid
user=mysql
datadir=/home/mysql/data
tmpdir=/home/mysql/temp/
log-bin=/home/mysql/data/mysqlslave-bin
log-error=/home/mysql/logs/error.log
slow_query_log_file=/home/mysql/logs/slow.log
binlog_format=mixed
slow_query_log
long_query_time=10
wait_timeout=31536000
interactive_timeout=31536000
max_connections=500
max_user_connections=490
max_connect_errors=2
character_set_server=utf8
skip-external-locking
key_buffer_size = 128M
max_allowed_packet = 5M
table_open_cache = 512
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size = 32M
# Try number of CPU\'s*2 for thread_concurrency
thread_concurrency = 4
binlog-ignore-db=mysql
binlog-ignore-db=information_schema
replicate_ignore_db=mysql
replicate_ignore_db=information_schema
expire-logs-days=10
#skip-slave-start
skip-name-resolve
lower_case_table_names=1
log_bin_trust_function_creators=1
 
# InnoDB
innodb_data_home_dir=/home/mysql/data
innodb_log_group_home_dir=/home/mysql/logs
innodb_data_file_path=ibdata1:128M:autoextend
innodb_buffer_pool_size=2G
innodb_log_file_size=10M
innodb_log_buffer_size=8M
innodb_lock_wait_timeout=50
innodb_file_per_table
innodb_flush_log_at_trx_commit=1
 
#sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
sql_mode=STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,NO_AUTO_VALUE_ON_ZERO
 
[mysqldump]
quick
max_allowed_packet = 16M
 
[mysql]
no-auto-rehash
 
[myisamchk]
key_buffer_size = 256K
sort_buffer_size = 256K
read_buffer = 256K
write_buffer = 256K
 
[mysqlhotcopy]
interactive-timeout
 
sql_mode=STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,NO_AUTO_VALUE_ON_ZERO
 
[mysqldump]
quick
max_allowed_packet = 16M
 
[mysql]
no-auto-rehash
 
[myisamchk]
key_buffer_size = 256K
sort_buffer_size = 256K
read_buffer = 256K
write_buffer = 256K
 
[mysqlhotcopy]
interactive-timeout

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