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标题:
MySQL主从异步复制
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作者:
听老歌
时间:
2011-11-27 17:25
标题:
MySQL主从异步复制
MySQL主从异步复制
目标:
实现MySQL主从复制,达到实时备份的目的
系统概况:
系统:CentOS;内核版本:2.6.18-194.el5 MySQL: 5.1.54
网络地址:
master:192.168.85.101 slave:192.168.85.102
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一、安装MySQL
二、配置
三、验证、测试
一、安装mysql(主从相同)
01.#useradd mysql -s /sbin/nologin
02.#tar zxvf mysql-5.1.54.tar.gz
03.#cd mysql-5.1.54
04.#./configure --prefix=/usr/local/mysql --localstatedir=/opt/data --with-extra-charsets=utf8,gb2312,gbk --with-pthread --enable-thread-safe-client
05.#make
06.#make install
07.#cp support-files/my-large.cnf /etc/my.cnf
08.#cd /usr/local/mysql
09.#chgrp -R mysql .
10.#/usr/local/mysql/bin/mysql_install_db --user=mysql
11.# chown -R mysql:mysql /opt/data
12.#/usr/local/mysql/bin/mysqladmin -u root password sairl
13.#echo "/usr/local/mysql/bin/mysqld_safe --user=mysql &" >>/etc/rc.local
14.#echo "export PATH=$PATH:/usr/local/mysql/bin" >>/etc/profile
15.#source /etc/profile
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二、配置
1)、修改slave服务器的server-id(master服务器不变)
56 # required unique id between 1 and 2^32 - 1
57 # defaults to 1 if master-host is not set
58 # but will not function as a master if omitted
59 server-id= 10
60
61 # Replication Slave (comment out master section to use this)
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2)、授权(在master服务器上操作)
01.mysql> GRANT REPLICATION SLAVE ON *.*
02.-> TO 'backup'@'192.168.85.102' IDENTIFIED BY 'testpwd';
03.Query OK, 0 rows affected (0.00 sec)
04.
05.mysql> show master status; //主数据库状态
06.+------------------+----------+--------------+------------------+
07.| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
08.+------------------+----------+--------------+------------------+
09.| mysql-bin.000003 | 409 | | |
10.+------------------+----------+--------------+------------------+
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3)、配置slave服务器
01.mysql> change master to
02.-> master_host='192.168.85.101',
03.-> master_user='backup',
04.-> master_password='testpwd',
05.-> master_log_file='mysql-bin.000003',
06.-> master_log_pos=409;
07.Query OK, 0 rows affected (0.00 sec)
08.mysql> start slave;
09.Query OK, 0 rows affected (0.00 sec)
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查看一下同步状态
01.mysql> show slave status\G
02.*************************** 1. row ***************************
03. Slave_IO_State: Waiting for master to send event
04. Master_Host: 192.168.85.101
05. Master_User: replication
06. Master_Port: 3306
07. Connect_Retry: 60
08. Master_Log_File: mysql-bin.000003
09. Read_Master_Log_Pos: 720
10. Relay_Log_File: sairl-DB-2-relay-bin.000008
11. Relay_Log_Pos: 251
12. Relay_Master_Log_File: mysql-bin.000003
13. Slave_IO_Running: Yes
14. Slave_SQL_Running: Yes
15. Replicate_Do_DB:
16. Replicate_Ignore_DB:
17. Replicate_Do_Table:
18. Replicate_Ignore_Table:
19. Replicate_Wild_Do_Table:
20. Replicate_Wild_Ignore_Table:
21. Last_Errno: 0
22. Last_Error:
23. Skip_Counter: 0
24. Exec_Master_Log_Pos: 720
25. Relay_Log_Space: 556
26. Until_Condition: None
27. Until_Log_File:
28. Until_Log_Pos: 0
29. Master_SSL_Allowed: No
30. Master_SSL_CA_File:
31. Master_SSL_CA_Path:
32. Master_SSL_Cert:
33. Master_SSL_Cipher:
34. Master_SSL_Key:
35. Seconds_Behind_Master: 0
36.Master_SSL_Verify_Server_Cert: No
37. Last_IO_Errno: 0
38. Last_IO_Error:
39. Last_SQL_Errno: 0
40. Last_SQL_Error:
41.1 row in set (0.00 sec)
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PS:slave_IO进程及slave_SQL进程都必须正常运行
三、验证、测试
主从复制测试:在master数据库服务器上创建库和表,然后再插入记录,再登陆到slave服务器,看是否也建立相一致的库和表以及记录。
01.mysql> create database test_db;
02.Query OK, 1 row affected (0.00 sec)
03.
04.mysql> use test_db;
05.Database changed
06.mysql> create table test_table(id int(5),name char(10));
07.Query OK, 0 rows affected (0.00 sec)
08.
09.mysql> insert into test_table
10. -> values(01,'xiujie');
11.Query OK, 1 row affected (0.00 sec)
12.
13.现在登录slave数据库服务器,看是否成功同步。
14.mysql> show databases;
15.+--------------------+
16.| Database |
17.+--------------------+
18.| information_schema |
19.| mysql |
20.| test |
21.| test_db |
22.+--------------------+
23.4 rows in set (0.02 sec)
24.
25.mysql> use test_db;
26.Database changed
27.mysql> show tables;
28.+-------------------+
29.| Tables_in_test_db |
30.+-------------------+
31.| test_table |
32.+-------------------+
33.1 row in set (0.00 sec)
34.
35.mysql> select * from test_table;
36.+------+--------+
37.| id | name |
38.+------+--------+
39.| 1 | xiujie |
40.+------+--------+
41.1 row in set (0.00 sec)
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OK,配置到此结束
201106~1.JPG
(31.58 KB, 下载次数: 4)
下载附件
2011-11-27 17:25 上传
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