由于业务需求，需要在现有mysql中安装sphinx的存储引擎，要保证现有mysql运行的情况下完成。mysql也的确支持存储引擎的在线热插拔，下面介绍安装步骤：
1、查看现有mysql的运行版本
# mysqladmin -u user -p pwd version
...
Server version 5.1.47-log
Protocol version 10
Connection Localhost via UNIX socket
UNIX socket /data/mysql_db/mysql.sock
Uptime: 15 days 2 hours 17 min 40 sec
2、下载mysql和sphinx
mysql：wget ftp://ftp.ntu.edu.tw/pub/MySQL/Downloads/MySQL-5.1/mysql-5.1.47.tar.gz
sphinx：wget http://sphinxsearch.com/downloads/sphinx-0.9.9.tar.gz
注意：mysql源码包的版本一定要与当前运行的mysql版本一致！
解压
# tar -xzvf mysql-5.1.47.tar.gz
# tar -xzvf sphinx-0.9.9.tar.gz
3、将sphinx-0.9.9下的mysqlse目录复制到mysql目录中
#cp -r sphinx-0.9.9/mysqlse/ mysql-5.1.47/storage/sphinx
build
# cd mysql-5.1.47
# sh BUILD/autorun.sh
#./configure
# make
注意：这里到make这步即可，不用install
4、将make好的文件复制到当前运行的mysql目录中
# cp storage/sphinx/.libs/ha_sphinx.* /usr/local/mysql/lib/mysql/plugin
更改所有者
# chown mysql.mysql /usr/local/mysql/lib/mysql/plugin/*
注：我当前运行的mysql目录在/usr/local/mysql
5、登陆mysql加载sphinx引擎模块
#mysql -u root -p -h localhost
# mysql> INSTALL PLUGIN sphinx SONAME 'ha_sphinx.so';
检查引擎模块是否正常加载
mysql> show engines;
+------------+---------+----------------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+------------+---------+----------------------------------------------------------------+--------------+------+------------+
| ndbcluster | NO | Clustered, fault-tolerant tables | NULL | NULL | NULL |
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
| BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO |
| InnoDB | YES | Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
| SPHINX | YES | Sphinx storage engine 0.9.9 | NO | NO | NO |
| MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance | NO | NO | NO |
| CSV | YES | CSV storage engine | NO | NO | NO |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
+------------+---------+----------------------------------------------------------------+--------------+------+------------+
安装完成！如果要卸载存储模块使用
mysql> UNINSTALL PLUGIN sphinx;