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Mysql主从复制
Mysql主从复制的原理：
从库以一定的频率去读取主库的二进制日志文件，并按照主库的二进制的记录对从库进行同样的操作，以达到从库与主库内容同步的效果。
Mysql怎么安装我就不多说了，大家可以参考：
http://alipay.blog.51cto.com/7119970/1570454
安装过程中出现错误：
http://alipay.blog.51cto.com/7119970/1571229
本文数据表创建参考文章：
http://alipay.blog.51cto.com/7119970/1570488
主服务器：192.168.159.130
从服务器：192.168.159.131
一、主服务器配置：
[root@rhel64 ~]# service iptables stop;
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Flushing firewall rules: [ OK ]
iptables: Unloading modules: [ OK ]
[root@rhel64 ~]# /etc/rc.d/init.d/mysql stop
Shutting down MySQL.. [ OK ]
[root@rhel64 ~]# vi /etc/my.cnf
[mysqld]
log_bin = mysql-bin #必须开启二进制日志
server_id = 1 #服务器id号，必须是唯一数。
[root@rhel64 ~]# /etc/rc.d/init.d/mysql start
Starting MySQL.... [ OK ]
[root@rhel64 ~]# mysql -uroot -p
mysql> create user gupt11@‘localhost‘ identified by ‘123456‘;
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> grant replication slave on *.* to gupt11@‘192.168.159.131‘ identified by ‘123456‘;
Query OK, 0 rows affected (0.00 sec)
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 | 583 | | | |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
二、从服务器配置
[root@gupt11 ~]# /etc/rc.d/init.d/mysql stop
Shutting down MySQL. [ OK ]
[root@gupt11 ~]# vi /etc/my.cnf
[mysqld]
log_bin = mysql-bin #必须开启二进制日志
server_id = 2 #确保这个id号没有被其他服务器使用
[root@gupt11 ~]# /etc/rc.d/init.d/mysql start
Starting MySQL.... [ OK ]
[root@gupt11 ~]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.16-log Source distribution
Copyright (c) 2000, 2014, 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.
mysql> change master to master_host=‘192.168.159.130‘,master_user=‘gupt11‘,master_password=‘123456‘,master_log_file=‘mysql-bin.000001‘,master_log_pos=583;
Query OK, 0 rows affected, 2 warnings (0.03 sec)
##Slave_IO_Running和Slave_SQL_Running必须是Yes，见下面：
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.159.130
Master_User: gupt11
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 583
Relay_Log_File: gupt11-relay-bin.000002
Relay_Log_Pos: 283
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: 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: 583
Relay_Log_Space: 457
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:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: 5c77474b-63d6-11e4-9337-000c2941ae03
Master_Info_File: /usr/local/mysql/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
ERROR:
No query specified
mysql>
三、在主服务器测试
mysql> create database scott;
Query OK, 1 row affected (0.00 sec)
mysql> use scott
Database changed
mysql> CREATE TABLE dept
-> (
-> deptno INT PRIMARY KEY,
-> dname VARCHAR(14),
-> loc VARCHAR(13)
-> );
Query OK, 0 rows affected (0.02 sec)
mysql> INSERT INTO dept VALUES
-> (10,‘ACCOUNTING‘,‘NEW YORK‘);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO dept VALUES
-> (20,‘RESEARCH‘,‘DALLAS‘);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO dept VALUES
-> (30,‘SALES‘,‘CHICAGO‘);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO dept VALUES
-> (40,‘OPERATIONS‘,‘BOSTON‘);
Query OK, 1 row affected (0.00 sec)
mysql> select * from dept;
+--------+------------+----------+
| deptno | dname | loc |
+--------+------------+----------+
| 10 | ACCOUNTING | NEW YORK |
| 20 | RESEARCH | DALLAS |
| 30 | SALES | CHICAGO |
| 40 | OPERATIONS | BOSTON |
+--------+------------+----------+
4 rows in set (0.00 sec)
mysql>
四、在从服务器上看
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| scott |
| test |
+--------------------+
5 rows in set (0.00 sec)
mysql> use scott;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select * from dept;
+--------+------------+----------+
| deptno | dname | loc |
+--------+------------+----------+
| 10 | ACCOUNTING | NEW YORK |
| 20 | RESEARCH | DALLAS |
| 30 | SALES | CHICAGO |
| 40 | OPERATIONS | BOSTON |
+--------+------------+----------+
4 rows in set (0.00 sec)
mysql>
本文出自 “xbc's homepage” 博客，请务必保留此出处http://alipay.blog.51cto.com/7119970/1571244
Mysql主从复制