mysql主从配置总结
1.[[email protected] ~]# cat /etc/redhat-release //版本centos6.4
CentOS release 6.4 (Final)
2.[[email protected] ~]# virsh
Welcome to virsh, the virtualization interactive terminal.
Type: ‘help‘ for help with commands
‘quit‘ to quit
3.virsh # list
Id Name State
----------------------------------------------------
1 windows2003_64 running
2 winxp running
4 CactiEZ running
11 SN01 running //KVM虚拟机SN01为centos6.4操作系统作为主mysql IP：192.168.200.77
13 SN02 running //KVM虚拟机SN01为centos6.4操作系统作为从mysql IP: 192.168.200.78
4.virsh # console 11 //进入主mysql服务器
5.[[email protected] mysql]# rpm -q mysql-server //mysql版本为5.1.73版本
mysql-server-5.1.73-3.el6_5.x86_64
6.[[email protected] mysql]# cat /etc/my.cnf //添加server-id和log-bin=mysql-bin
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
server-id=77 //添加server-id不能重复这个为ip最后一位作为id
log-bin=mysql-bin //启动bin日志
7.[[email protected] mysql]# mysql -uroot -p123456 //进入mysql数据库
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 28
Server version: 5.1.73-log Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
8.mysql>grant replication slave on *.* to ‘replication‘@‘192.168.200.%‘ identified by ‘123456‘；//一般不用root帐号，“%”表示所有客户端都可能连，只要帐号，密码正确，此处可用具体
客户端IP代替，如192.168.200.78，加强安全。
Query OK, 0 rows affected (0.00 sec)
9.mysql> show master status; //查看主mysql的状态记住file和position
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 | 187 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
执行完此步骤后不要再操作主服务器MYSQL，防止主服务器状态值变化
10.按ctrl+]返回kvm
11.virsh # list
Id Name State
----------------------------------------------------
1 windows2003_64 running
2 winxp running
4 CactiEZ running
11 SN01 running
13 SN02 running
12.virsh # console 13 //进入SN02从mysql服务器
Connected to domain SN02
Escape character is ^]
13.[[email protected] mysql]# mysql -uroot -p123456 //进入从mysql数据库服务器
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 5.1.73-log Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
14.mysql> change master to master_host=‘192.168.200.77‘,master_user=‘replication‘,master_password=‘123456‘,
master_log_file=‘mysql-bin.000001‘,master_log_pos=187；//注意不要断开，“187”无单引号。
15.mysql> start slave; //启动服务器复制功能
Query OK, 0 rows affected, 1 warning (0.00 sec)
16.mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.200.77 //主服务器地址
Master_User: replication //授权帐户名，尽量避免使用root
Master_Port: 3306 //数据库端口，部分版本没有此行
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 187 //#同步读取二进制日志的位置，大于等于>=Exec_Master_Log_Pos
Relay_Log_File: mysqld-relay-bin.000022
Relay_Log_Pos: 251
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes //此状态必须YES
Slave_SQL_Running: Yes //此状态必须YES
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 187
Relay_Log_Space: 552
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
1 row in set (0.00 sec)
ERROR:
No query specified
注：Slave_IO及Slave_SQL进程必须正常运行，即YES状态，否则都是错误的状态(如：其中一个NO均属错误)。
以上操作过程，主从服务器配置完成。
测试
17.mysql> show databases; //查看所有数据库
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| test |
| |
+--------------------+
3 rows in set (0.00 sec)
18.mysql>create database zhh; //创建数据库zhh
19.mysql> use zhh;//进入zhh数据库
Database changed
20.mysql> create table zhh(id int(3),name char(10));//创建zhh表
Query OK, 0 rows affected (0.06 sec)
21.mysql> insert into zhh value(01,‘zh888.blog‘);//插入01和zh888.blog值
Query OK, 1 row affected, 1 warning (0.00 sec)
22.mysql> select *from zhh;//查询zhh表的内容
+------+------------+
| id | name |
+------+------------+
| 1 | zh888.blog |
+------+------------+
1 row in set (0.00 sec)
23.ctrl+]切换到kvm
24.virsh # list
Id Name State
----------------------------------------------------
1 windows2003_64 running
2 winxp running
4 CactiEZ running
11 SN01 running
13 SN02 running
25.virsh # console 13 //连接sn02从mysql服务器
Connected to domain SN02
Escape character is ^]
26.[[email protected] mysql]# mysql -uroot -p123456 //进入从mysql数据库
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 5.1.73-log Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
27.mysql> show databases;//查看所有mysql数据库
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| test |
| zhh |
| |
+--------------------+
4 rows in set (0.01 sec)
28.mysql> use zhh;//进入zhh数据库
Database changed
mysql> select *from zhh;//查询zhh表的内容
+------+------------+
| id | name |
+------+------------+
| 1 | zh888.blog |
+------+------------+
1 row in set (0.00 sec)
大功告成！