本文是对mysql主从同步http://dnuser.blog.51cto.com/4863891/1263570的补充，只是增加了相互同步
ServerA：192.168.1.251
ServerB：192.168.1.252
ServerA：
mysql>grant replication slave on *.* to backdata@'192.168.1.252' identified by "backpass";
[root@ServerA ~]# cat /etc/my.cnf
[client]
#password = your_password
port = 3306
socket = /tmp/mysql.sock
[mysqld]
port = 3306
socket = /tmp/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
log-bin=mysql-bin
binlog_format=mixed
server-id = 2
expire_logs_days=7
binlog-do-db=vv
binlog-do-db=vvf_mall
binlog-ignore-db=mysql
binlog-ignore-db=information_schema
#自增主键1,3,5,7.........
auto_increment_offset = 1
auto_increment_increment = 2
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
在ServerB上执行：
mysql> show master status;
+------------------+----------+--------------+--------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+--------------------------+
| mysql-bin.000025 | 106 | vv,vvf_mall | mysql,information_schema |
+------------------+----------+--------------+--------------------------+
1 row in set (0.00 sec)
在ServerA上执行：
mysql>change master to master_host='192.168.1.252',
master_user='backdata',master_password='backpass',master_port=3306,master_log_file='mysql-bin.000025',
master_log_pos=106;
mysql>slave start;
mysql>show slave status \G;
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
ServerB：
mysql>grant replication slave on *.* to backdata@'192.168.1.251' identified by "backpass";
[root@ServerB ~]# cat /etc/my.cnf
[client]
#password = your_password
port = 3306
socket = /tmp/mysql.sock
[mysqld]
port = 3306
socket = /tmp/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
log-bin=mysql-bin
binlog_format=mixed
server-id = 2
expire_logs_days=7
binlog-do-db=vv
binlog-do-db=vvf_mall
binlog-ignore-db=mysql
binlog-ignore-db=information_schema
#自增主键2,4,6,8.......
auto_increment_offset = 2
auto_increment_increment = 2
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
在ServerA上执行：
mysql> show master status;
+------------------+----------+--------------+--------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+--------------------------+
| mysql-bin.000005 | 108 | vv,vvf_mall | mysql,information_schema |
+------------------+----------+--------------+--------------------------+
1 row in set (0.00 sec)
在ServerB上执行：
mysql>change master to master_host='192.168.1.251',
master_user='backdata',master_password='backpass',master_port=3306,master_log_file='mysql-bin.000005',
master_log_pos=108;
mysql>slave start;
mysql>show slave status \G;
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
