欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

Centos 5.2下安装多个mysql数据库配置详解

程序员文章站 2024-03-01 14:26:10
一、编译安装第一个mysql 5.1.33 cd /opt /usr/sbin/groupadd mysql /usr/sbin/useradd -g...

一、编译安装第一个mysql 5.1.33

cd /opt

/usr/sbin/groupadd mysql

/usr/sbin/useradd -g mysql mysql -s /bin/nologin -d /usr/local/mysql

tar -zxvf mysql-5.1.33.tar.gz

cd mysql-5.1.33/

./configure --prefix=/usr/local/mysql/ --enable-assembler --with-extra-charsets=complex --enable-thread-safe-client --with-big-tables --with-readline --with-ssl --with-embedded-server --enable-local-infile --with-plugins=innobase

make && make install

chmod +w /usr/local/mysql

chown -r mysql:mysql /usr/local/mysql

cp support-files/my-medium.cnf /usr/local/mysql/my.cnf

cd ../


附:以下为附加步骤,如果你想在这台服务器上运行mysql数据库,则执行以下两步。如果你只是希望让php支持mysql扩展库,能够连接其他服务器上的mysql数据库,那么,以下两步无需执行。

①、以mysql用户帐号的身份建立数据表:

/usr/local/mysql/bin/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql

②、启动mysql(最后的&表示在后台运行)

/bin/sh /usr/local/mysql/bin/mysqld_safe --defaults-file=/usr/local/mysql/my.cnf &

echo "/bin/sh /usr/local/mysql/bin/mysqld_safe --defaults-file=/usr/local/mysql/my.cnf &" >> /etc/rc.local

ln -s /usr/local/mysql/bin/mysql /sbin/mysql 

ln -s /usr/local/mysql/bin/mysqladmin /sbin/mysqladmin


mysqladmin -u root password 1234 --初始化root密码

mysqladmin -u root -p password 456 --修改root已设置好的密码

mysql -u root -p         --用新密码连接数据库



添加mysql帐户 

grant all on *.* to 

'mysql3306'@'%' identified by 'mysql3306';     --添加用户mysql3306用于远程管理mysql数据库

二、编译安装第二个mysql 5.1.33:


注:可以将第一个mysql的安装文件全部复制过来,为了熟练安装过程,这里就再来重新安装一遍

cd /opt

/usr/sbin/useradd -g mysql mysql3307 -s /bin/nologin -d /usr/local/mysql3307

tar -zxvf mysql-5.1.33.tar.gz

cd mysql-5.1.33/

./configure --prefix=/usr/local/mysql3307/ --enable-assembler --with-extra-charsets=complex --enable-thread-safe-client --with-big-tables --with-readline --with-ssl --with-embedded-server --enable-local-infile --with-plugins=innobase

make;make install

chmod +w /usr/local/mysql3307

chown -r mysql3307:mysql /usr/local/mysql3307

chmod -r 777 /usr/local/mysql3307

cp /usr/local/mysql/share/mysql/my-medium.cnf /usr/local/mysql3307/my.cnf


修改配置文件:

port = 3307                   --修改端口

socket = /tmp/mysql3307.sock       --修改sock

# here follows entries for some specific programs

# the mysql server

[mysqld]

port = 3307

socket = /tmp/mysql3307.sock

①、以mysql用户帐号的身份建立数据表:

/usr/local/mysql3307/bin/mysql_install_db --basedir=/usr/local/mysql3307 --datadir=/usr/local/mysql3307/data --user=mysql3307

②、启动mysql(最后的&表示在后台运行)

/bin/sh /usr/local/mysql3307/bin/mysqld_safe --defaults-file=/usr/local/mysql3307/my.cnf &

echo "/bin/sh /usr/local/mysql3307/bin/mysqld_safe --defaults-file=/usr/local/mysql3307/my.cnf &" >> /etc/rc.local



注:如出现 warning world-writable config file ' /usr/local/mysql3307/my.cnf' is ignored

解决办法:  chmod 644 /usr/local/mysql3307/my.cnf

mysqladmin -p 3307 -s/tmp/mysql3307.sock -u root password 1q2w3e --初始化root密码

mysqladmin -p 3307 -s/tmp/mysql3307.sock -u root -p password 1q2w3e --修改root已设置好的密码

/usr/local/mysql3307/bin/mysql -uroot -p -s/tmp/mysql3307.sock


添加mysql帐户 

grant all on *.* to 

'mysql3307'@'%' identified by 'mysql3307';     --添加用户mysql3307用于远程管理mysql数据库