MYSQL安装及布置主从关系
从mysql5.5起，MySQL源码安装开始使用cmake (也可以是有yum安装： yum -y install cmake)view plain copy
wget http://cmake.org/files/v3.2/cmake-3.2.3.tar.gz
tar zxvf cmake-3.2.3.tar.gz
cd cmake-3.2.3
./bootstrap
make
make install
cd ..
二、安装MySQL所需依赖包
yum -y install ncurses-devel libtool openssl-devel
三、安装MySQL
wget http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.26.tar.gz
useradd -r -s /sbin/nologin mysql
mkdir -pv /usr/local/mysql/data
tar zxvf mysql-5.6.26.tar.gz
cd mysql-5.6.26
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/usr/local/mysql/data/ -DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock -DWITH_INNOBASE_STORAGE_ENGINE=1 -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_ARCHIVE_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DMYSQL_TCP_PORT=3306 -DSYSCONFDIR=/etc -DENABLE_DOWNLOADS=1
#出现错误，下次需要：rm -rf CMakeCache.txt
make
make install
rm -rf /etc/my.cnf
cp support-files/my-default.cnf /etc/my.cnf
cp support-files/mysql.server /etc/init.d/mysqld
chmod 755 /etc/init.d/mysqld
chown -R mysql.mysql /usr/local/mysql/
##初始化数据库
chmod +x scripts/mysql_install_db
scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
ln -s /usr/local/mysql/bin/* /usr/bin/
ln -s /usr/local/mysql/lib/* /usr/lib/
ln -s /usr/local/mysql/lib/* /usr/lib64/
ln -s /usr/local/mysql/man/man1/*/usr/share/man/man1
ln -s /usr/local/mysql/man/man8/*/usr/share/man/man8
ln -s /usr/local/mysql/libexec/*/usr/local/libexec
四、启动mysql服务并加入开机自启动
service mysqld start
chkconfig mysqld on
22、设置MySQL开机自动启动服务：
# chkconfig mysql on
设置MySQL数据库root用户的本地登录密码（初始用户没有密码）：
# mysqladmin -u root password 'roncoo'
23、登录并修改MySQL用户root的密码：
# mysql -uroot -p
mysql> use mysql; 修改root用户密码：
mysql> update user set Password = password('123456') where User='root';
Query OK, 4 rows affected (0.00 sec)
Rows matched: 5Changed: 4Warnings: 0
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
允许root远程登录，设置远程登录密码:123456
mysql> use mysql;
mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'> mysql> flush privileges;
mysql> exit;
注意：真实生产环境，应用操作不要使用root用户。
重新登录
# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.Commands end with ; or \g.
Your MySQL connection> Server version: 5.6.26-log Source distribution
Copyright (c) 2000, 2015, 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>
运行安全设置脚本，强烈建议生产服务器使用（可选）：
# /usr/local/mysql/bin/mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
SERVERS IN PRODUCTION USE!PLEASE READ EACH STEP CAREFULLY!
In order to log into MySQL to secure it, we'll need the current
password for the root user.If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none): #此处输入root密码
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.
You already have a root password set, so you can safely answer 'n'.
Change the root password? n #上已为root设置了密码，此处可输n
... skipping.
By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them.This is intended only for testing, and to make the installation
go a bit smoother.You should remove them before moving into a
production environment.
Remove anonymous users? Y#删除匿名用户
... Success!
Normally, root should only be allowed to connect from 'localhost'.This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? n
#一般不允许root远程登录，可添加普通用户，然后设置允许远程登录
... skipping.
By default, MySQL comes with a database named 'test' that anyone can
access.This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? Y #删除test库及相应权限
- Dropping test database...
... Success!
- Removing privileges on test database...
... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? Y #重新加载权限表使设置生效
... Success!
All done!If you've completed all of the above steps, your MySQL
installation should now be secure.
Thanks for using MySQL!
Cleaning up...
改防火墙设置，打开3306端口：
# vi /etc/sysconfig/iptables
增加如下行：
-A INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT
【布置主从关系】mysql1 mysql2
mysql -uroot -p 登录mysql创建同步账号
grant replication slave on *.* to 'mysql1'@'%'> quit
vim /etc/my.cny #启用bin-log日志
log_bin = mysql-bin
server-id= 1 #id 应设置成不一样的
service mysql restart #重启数据库
与mysql一样
mysql -uroot -p 登录mysql创建同步账号
grant replication slave on *.* to 'mysql2'@'%'> quit
vim /etc/my.cny #启用bin-log日志
log_bin = mysql-bin
server-id= 2
service mysql restart #重启数据库
现在布置mysql1为主mysql2为从
mysql -uroot -p123456 #登录mysql2
mysql> show master status\G;
*************************** 1. row ***************************
File: mysql-bin.000004
Position: 120
Binlog_Do_DB:
Binlog_Ignore_DB:
Executed_Gtid_Set:
1 row in set (0.00 sec
mysql> quit
mysql -uroot -p123456 #登录mysql2
> stop slave;
>reset slave all;
> change master to master_host='IP', #mysql2的IP
master_user='mysql2',
master_password='123456';
master_log_file='mysql-bin.000004',
master_log_pos=120;
> start slave;
show slave status;
#如果 “Slave_IO_Running: Yes”和 “Slave_SQL_Running: Yes“，表明同步OK
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