CentOS 5.2下安装多个MySQL数据库

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/mysqladminmysqladmin -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.sock①、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.cnfmysqladmin -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MySQL多实例安装Linux上连接Microsoft SQL Server 2005相关资讯 MySQL教程

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