Cenots6.4下mysql5.6安装及主从配置
2016-12-09 11:34
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环境:
Centos6.5
mysql主:10.47.65.76
mysql从:10.47.64.84
Centos6.5
mysql主:10.47.65.76
mysql从:10.47.64.84
一、卸载旧版本
[root@iZbp17vlqunx6kul3no7r4Z data01]# rpm -qa |grep mysql mysql-libs-5.1.73-3.el6_5.x86_64 [root@iZbp17vlqunx6kul3no7r4Z data01]# yum remove mysql-libs
二、安装及配置mysql
2.1 下载三个mysql的rpm软件包
[root@iZbp17vlqunx6kul3no7r4Z data01]# wget http://dev.mysql.com/Downloads/MySQL-5.6/MySQL-server-5.6.21-1.rhel5.x86_64.rpm [root@iZbp17vlqunx6kul3no7r4Z data01]# wget http://dev.mysql.com/Downloads/MySQL-5.6/MySQL-devel-5.6.21-1.rhel5.x86_64.rpm [root@iZbp17vlqunx6kul3no7r4Z data01]# wget http://dev.mysql.com/Downloads/MySQL-5.6/MySQL-client-5.6.21-1.rhel5.x86_64.rpm[/code]2.2 安装三个mysql的rpm软件包(主从操作一致)
[root@iZbp17vlqunx6kul3no7r4Z data01]# ll |grep My -rw-r--r-- 1 root root 23156366 Sep 12 2014 MySQL-client-5.6.21-1.rhel5.x86_64.rpm -rw-r--r-- 1 root root 4579502 Sep 12 2014 MySQL-devel-5.6.21-1.rhel5.x86_64.rpm -rw-r--r-- 1 root root 88524802 Sep 12 2014 MySQL-server-5.6.21-1.rhel5.x86_64.rpm [root@iZbp17vlqunx6kul3no7r4Z data01]# rpm -ivh MySQL-client-5.6.21-1.rhel5.x86_64.rpm Preparing... ########################################### [100%] 1:MySQL-client ########################################### [100%] [root@iZbp17vlqunx6kul3no7r4Z data01]# rpm -ivh MySQL-devel-5.6.21-1.rhel5.x86_64.rpm Preparing... ########################################### [100%] 1:MySQL-devel ########################################### [100%] [root@iZbp17vlqunx6kul3no7r4Z data01]# rpm -ivh MySQL-server-5.6.21-1.rhel5.x86_64.rpm Preparing... ########################################### [100%] 1:MySQL-server ########################################### [100%] warning: user mysql does not exist - using root warning: group mysql does not exist - using root 2016-12-09 13:55:20 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2016-12-09 13:55:20 23284 [Note] InnoDB: Using atomics to ref count buffer pool pages 2016-12-09 13:55:20 23284 [Note] InnoDB: The InnoDB memory heap is disabled 2016-12-09 13:55:20 23284 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2016-12-09 13:55:20 23284 [Note] InnoDB: Memory barrier is not used 2016-12-09 13:55:20 23284 [Note] InnoDB: Compressed tables use zlib 1.2.3 。。。2.3 建立用户及密码(主从操作一致)
[root@iZbp17vlqunx6kul3no7r4Z data01]# cp /usr/share/mysql/my-default.cnf /etc/my.cnf #复制配置文件到/etc目录 [root@iZbp17vlqunx6kul3no7r4Z data01]# cat /root/.mysql_secret #mysql使用root用户安装生成的密码 # The random password set for the root user at Fri Dec 9 13:55:23 2016 (local time): RR6rrCXcEnnOamL2 [root@iZbp17vlqunx6kul3no7r4Z data01]# /etc/init.d/mysql start #启动mysql Starting MySQL. SUCCESS! [root@iZbp17vlqunx6kul3no7r4Z data01]# mysql -uroot -pRR6rrCXcEnnOamL2 Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.6.21 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> mysql> set password=password('1qaz@WSX'); #修改密码 Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> create database zhucong_test; #创建测试库 Query OK, 1 row affected (0.00 sec) mysql> use zhucong_test Database changed mysql> create table run(id int not null,name varchar(32) not null); #创建测试表 Query OK, 0 rows affected (0.02 sec) mysql> show tables; +------------------------+ | Tables_in_zhucong_test | +------------------------+ | run | +------------------------+ 1 row in set (0.00 sec)2.4 主数据库配置
[root@iZbp17vlqunx6kul3no7r4Z mysql]# vim /etc/my.cnf [mysqld] server-id = 1 #master的ID log-bin = mysql-bin #开启二进制日志 binlog-do-db = zhucong_test #需要同步的库名 #binglog-ignore-db = mysql #不需要同步的库名 [root@iZbp17vlqunx6kul3no7r4Z mysql]# /etc/init.d/mysql restart Shutting down MySQL.... SUCCESS! Starting MySQL. SUCCESS! mysql> show master status; +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000004 | 120 | zhucong_test | | | +------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec) mysql> grant replication slave,reload,super on *.* to backup@'%' identified by '1qaz@WSX'; Query OK, 0 rows affected (0.00 sec) #创建backup用户,可以从任何机器上登陆来复制master数据。
2.4 从数据库配置
[root@iZbp17vlqunx6kul3no7r2Z mysql]# vim /etc/my.cnf [mysqld] log_bin = mysql-bin #开启二进制日志,这里不用,如果是主主复制就需要了。 server_id = 2 #slave的id,不能和master重复。 relay_log = mysql-relay-bin #开启中继日志 log_slave_updates = 1 #slave将复制事件写入自己的二进制日志。 read_only = 1 #使用只读模式 replicate-do-db = zhucong_test: #需要同步的库名 mysql> change master to master_host='10.47.65.76',master_user='backup',master_password='1qaz@WSX',master_log_file='mysql-bin.000004',mas ter_log_pos=120; Query OK, 0 rows affected, 2 warnings (0.04 sec) #master_host是主数据库的ip,master_user对应创建的backup用户,master_password对应backup的密码,master_log_file对应master中show master status, 展示的file字段,master_log_pos对应position字段。执行成功后,slave就连接上了master。 mysql> show slave status\G; #查看slave状态,发现IO和SQL进程都是yes,说明连接成功。 *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 10.47.65.76 Master_User: backup Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 120 Relay_Log_File: mysql-relay-bin.000002 Relay_Log_Pos: 283 Relay_Master_Log_File: mysql-bin.000003 Slave_IO_Running: Yes Slave_SQL_Running: Yesmysql> start slave; #上一步还未开启复制数据过程,现在开始数据同步。 Query OK, 0 rows affected (0.00 sec)三、测试mysql主从
在主服务器上进行如下操作: [root@iZbp17vlqunx6kul3no7r4Z mysql]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.6.21-log MySQL Community Server (GPL) 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> use zhucong_test 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 run; Empty set (0.00 sec) mysql> insert into run values(1,'yao'); Query OK, 1 row affected (0.00 sec) mysql> insert into run values(2,'kun'); Query OK, 1 row affected (0.00 sec) 看下从服务器的状态: [root@iZbp17vlqunx6kul3no7r2Z mysql]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 25 Server version: 5.6.21-log MySQL Community Server (GPL) 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> use zhucong_test; 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 run; +----+------+ | id | name | +----+------+ | 1 | yao | | 2 | kun | +----+------+ 2 rows in set (0.00 sec) #主从结构配置成功。四、异常情况模拟
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