标题：linux下安装第二个mysql实例过程
出处：沧海一粟
时间：Wed, 20 Mar 2013 15:46:55 +0000
作者：jed
地址：http://www.dzhope.com/post/958/

内容：

tar zxvf mysql-5.5.3-m3.tar.gz
cd mysql-5.5.3-m3/

./configure --prefix=/usr/local/mysql2/ --with-tcp-port=3307 --with-unix-socket-path=/tmp/mysql2.sock --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=partition,innobase,myisammrg

make && make install

cp /usr/local/mysql2/share/mysql/my-medium.cnf /etc/my2.cnf

cp /usr/local/mysql2/share/mysql/mysql.server /etc/init.d/mysql2




修改服务文件

vi /etc/rc.d/init.d/mysql2



将引用的配置文件名称由my.cnf改为当前要使用的配置文件my2.cnf，将my.cnf改成my2.cnf


# Try to find basedir in /etc/my.cnf
  conf=/etc/my.cnf
  print_defaults=
  if test -r $conf
  then



在$bindir/mysqld_safe中添加--defaults-file=/etc/my2.cnf

修改成下面


 # may be overwritten at next upgrade.
      $bindir/mysqld_safe --defaults-file=/etc/my2.cnf  --datadir="$datadir" --pid-file="$mysqld_pid_file_path" $other_args >/dev/null 2>&1 &



保存。

初始化数据库

/usr/local/mysql2/bin/mysql_install_db --defaults-file=/etc/my2.cnf --basedir=/usr/local/mysql2/ --datadir=/usr/local/mysql2/var/ --user=mysql




chown -R mysql /usr/local/mysql2/var
chgrp -R mysql /usr/local/mysql2/.
chmod 755 /etc/init.d/mysql2
chkconfig --level 345 mysql2 on
service mysql2 start



至此安装完毕，可以启动一下，看是否有该进程

 netstat -tlnap | grep mysql





/usr/local/mysql2/bin/mysql -uroot -p --socket=/tmp/mysql2.sock




change master to master_host='0.0.0.0', master_user='replication',master_password='00000', master_log_file='mysql-bin.000005', master_log_pos=107,MASTER_PORT=3306; 



要指定端口，要不用的是本实例默认端口。




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