MySQL5.5 主主集群配置

• MySQL主主集群的复制,虽然不可以分担写操作,但是可以分担读操作,接下来配置双主集群

  master1: 172.25.23.100 server60.com mysql5.5编译安装
  master2: 172.25.23.14 server14.com mysql5.5编译安装

• 修改master的配置文件如下

server-id       = 10
log-bin=mysql-bin
log-bin-index=mysql-bin.index
relay-log = relay-mysql
relay-log-index = relay-mysql.index
auto-increment-increment = 2
auto-increment-offset = 1
innodb_file_per_table = 1
datadir= /mysql/mydata

• 修改从服务器的配置文件如下

server-id       = 20
log-bin = mysql-bin
relay-log=relay-log
relay-log-index=relay-log.index
innodb_file_per_table = 1
datadir= /mysql/mydata
auto-increment-increment = 2
auto-increment-offset = 2

• 然后启动两个节点

• 查看两个主节点的日志信息状态
• master 1
  

• master 2
  

• 然后授权用户双方用户

• master 1:

mysql> GRANT REPLICATION SLAVE ON *.* TO 'repluser'@'172.25.23.%' IDENTIFIED BY 'replpass';
Query OK, 0 rows affected (0.00 sec)

• master 2:

mysql> GRANT REPLICATION SLAVE ON *.* TO 'repluser'@'172.25.23.%' IDENTIFIED BY 'replpass';
Query OK, 0 rows affected (0.01 sec)

• 分别指定对方为master节点
• master 1

mysql> CHANGE MASTER TO MASTER_HOST='172.25.23.14',MASTER_USER='repluser',MASTER_PASSWORD='replpass',MASTER_PORT=3306,MASTER_LOG_FILE='mysql-bin.000001',MASTER_LOG_POS=1573,MASTER_CONNECT_RETRY=10;
Query OK, 0 rows affected (0.55 sec)

• master 2

mysql> CHANGE MASTER TO MASTER_HOST='172.25.23.100',MASTER_USER='repluser',MASTER_PASSWORD='replpass',MASTER_PORT=3306,MASTER_LOG_FILE='mysql-bin.000001',MASTER_LOG_POS=1578,MASTER_CONNECT_RETRY=10;
Query OK, 0 rows affected (0.00 sec)

• 双主模型,本质上就是互为master的主从架构,接下来启用从节点
• master 1

mysql> start slave;

• master 2

mysql> START SLAVE;
Query OK, 0 rows affected (0.00 sec)

• 并且在两个节点上面创建数据库,查看是否进行了同步
• master 1

mysql> create database testmaster1;
Query OK, 1 row affected (0.05 sec)

• 查看master 2已经进行了同步
  
• 在master 2上面创建testmaster2

mysql> CREATE database testmaster2;
Query OK, 1 row affected (0.06 sec)

• 在master上面查看是否发生改变