高速的建立索引(在当代CPU上,峰值性能可达到10 MB/秒);
高性能的搜索(在2 – 4GB 的文本数据上,平均每次检索响应时间小于0.1秒);
可处理海量数据(目前已知可以处理超过100 GB的文本数据, 在单一CPU的系统上可
处理100 M 文档);
提供了优秀的相关度算法,基于短语相似度和统计(BM25)的复合Ranking方法;
支持分布式搜索;
provides document exceprts generation;
可作为MySQL的存储引擎提供搜索服务;
支持布尔、短语、词语相似度等多种检索模式;
文档支持多个全文检索字段(最大不超过32个);
文档支持多个额外的属性信息(例如:分组信息,时间戳等);
停止词查询;
支持单一字节编码和UTF-8编码;
原生的MySQL支持(同时支持MyISAM 和InnoDB );
原生的PostgreSQL 支持.
一、安装所需文件mmseg-0.7.3.tar.gz 中文分词
http://www.coreseek.com/uploads/sources/mmseg-0.7.3.tar.gz
mysql-5.1.26-rc.tar.gz mysql-5.1.26源代码
sphinx-0.9.8-rc2.tar.gz sphinx-0.9.8-rc2源代码
http://www.sphinxsearch.com/downloads/sphinx-0.9.8-rc2.tar.gz
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- mmseg
- Coreseek COS(tm) MM Segment 1.0
- Copyright By Coreseek.com All Right Reserved.
- Usage: mmseg <option> <file>
- -u <unidict> Unigram Dictionary
- -r Combine with -u, used a plain text build Unigram Dictionary, default Off
- -b <Synonyms> Synonyms Dictionary
- -h print this help and exit
fix-crash-in-excerpts.patch sphinx支持分词补丁
http://www.coreseek.com/uploads/sources/fix-crash-in-excerpts.patch
sphinx-0.98rc2.zhcn-support.patch sphinx支持分词补丁
http://www.coreseek.com/uploads/sources/sphinx-0.98rc2.zhcn-support.patch
二、开始安装
1.安装libmmseg
安装mmseg完成,测试一下
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- tar -zxvf mmseg-0.7.3.tar.gz
- cd mmseg-0.7.3
- ./configure --prefix=/usr/local/mmseg
- make
- make install
- cd ..
有问题可以尝试执行下面命令
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- echo '/usr/local/mmseg/lib' >> /etc/ld.so.conf
- ldconfig -v
- ln -s /usr/local/mmseg/bin/mmseg /bin/mmseg
2.重新编译mysql
在安装之前先打两个补丁,这个是支持中文必须打的补丁
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- tar -zxvf sphinx-0.9.8-rc2.tar.gz
- cd sphinx-0.9.8
- patch -p1 < ../sphinx-0.98rc2.zhcn-support.patch
- patch -p1 < ../fix-crash-in-excerpts.patch
3.安装sphinx
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- cd /root/lemp/sphinx-0.9.8-rc2
- ./configure --prefix=/usr/local/sphinx --with-mysql=/opt/mysql /
- --with-mysql-includes=/opt/mysql/include/mysql --with-mysql-libs=/opt/mysql/lib/mysql /
- --with-mmseg-includes=/usr/local/mmseg/include --with-mmseg-libs=/usr/local/mmseg/lib --with-mmseg
- make
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- tokenizer_zhcn.cpp:1:30: SegmenterManager.h: 没有那个文件或目录
- tokenizer_zhcn.cpp:2:23: Segmenter.h: 没有那个文件或目录
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- make clean
- ./configure --prefix=/usr/local/sphinx --with-mysql=/opt/mysql /
- --with-mysql-includes=/usr/local/mysql/include/mysql --with-mysql-libs=/opt/mysql/lib/mysql /
- --with-mmseg-includes=/usr/local/mmseg/include/mmseg --with-mmseg-libs=/usr/local/mmseg/lib --with-mmseg
- /root/sphinx/sphinx-0.9.8-rc2/src/tokenizer_zhcn.cpp:34: undefined reference to `libiconv_close'
- collect2: ld returned 1 exit status
官网解决办法:
In the meantime I've change the configuration file and set
#define USE_LIBICONV 0 in line 8179.
修改configure 文件把 #define USE_LIBICONV 0 最后的数值由1改为0
重新编译。
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- make clean
- ./configure --prefix=/usr/local/sphinx --with-mysql=/opt/mysql /
- --with-mysql-includes=/usr/local/mysql/include/mysql --with-mysql-libs=/usr/local/mysql/lib/mysql /
- --with-mmseg-includes=/usr/local/mmseg/include/mmseg --with-mmseg-libs=/usr/local/mmseg/lib --with-mmseg
vi configure
输入/define USE_LIBICONV 找到目标行
按i键后将1改成0,按esc,输入:wq保存退出
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- make
- make install
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- cd /usr/local/sphinx/etc
- cp sphinx.conf.dist sphinx.conf
4.配置sphinx
修改/usr/local/sphinx/etc/sphinx.conf
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- type = mysql
- # some straightforward parameters for SQL source types
- sql_host = localhost
- sql_user = root
- sql_pass =
- sql_db = test
- sql_port = 3306 # optional, default is 3306
- address = 127.0.0.1 #安全点可以只监听本机
5.索引建立
装好sphinx后在sphinx的目录中有三个目录 分别为bin etc var
bin中 存有sphinx用到的一些执行文件 包括 indexer 索引建立 search 查询工具 searchd 查询服务器 等
为了下面测试方便,我们先将sphinx.conf自带的example.sql脚本倒入的mysql中
//创建了一个test库,并建立了documents测试表和数据
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- /usr/local/mysql/bin/mysql -uroot -p < /usr/local/sphinx/etc/example.sql
索引的建立方法为
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- /usr/local/sphinx/bin/indexer --config /usr/local/sphinx/etc/sphinx.conf test1
test1为资源名称 不写为默认所有都建立索引
附:
建立索引期间可能由于不同版本的数据库导致indexer找不到共享库libmysqlclient.so.16
需要把/opt/mysql/lib/mysql/libmysqlclient.so.16.0.0 这个文件复制到/usr/lib下 或者作软连接即可
6.查询服务器
/usr/local/sphinx/bin/searchd --config /usr/local/sphinx/etc/sphinx.conf 为开启
/usr/local/sphinx/bin/searchd --config /usr/local/sphinx/etc/sphinx.conf --stop 为关闭
sphinx的查询 可以大致分为三种
1 数据库引擎中的查询
2 通过search工具查询
/usr/local/sphinx/bin/search --config /usr/local/sphinx/etc/sphinx.conf test
3 通过php的接口查询 详见sphinxapi.php
三、在mysql中的使用SphinxSE方式调用Sphinx
1.在mysql中的使用SphinxSE方式调用Sphinx
首先建立一张索引专用表:
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- CREATE TABLE `sphinx` (
- `id` int(11) NOT NULL,
- `weight` int(11) NOT NULL,
- `query` varchar(255) NOT NULL,
- `CATALOGID` INT NOT NULL,
- `EDITUSERID` INT NOT NULL,
- `HITS` INT NULL,
- `ADDTIME` INT NOT NULL, KEY
- `Query` (`Query`)
- ) ENGINE=SPHINX DEFAULT CHARSET=utf8 CONNECTION='sphinx://localhost:3312/test1'
test1:索引的名称,可以在sphinx.conf中查找到
建立完索引专用表后,我们就可以在mysql中使用它了,例如,在mysql中输入
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- SELECT doc. * FROM documents doc JOIN sphinx ON ( doc.id = sphinx.id ) WHERE query = 'doc;mode= any'
运行后,结果记录中将会显示包含doc字符串的所用记录行
关于query的语法,还有sphinx的配置等信息你可以请参考:
http://www.sphinxsearch.com/doc.html
2.中文分词应用
生成词典
进入到mmseg的源代码目录后
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- cd data
- mmseg -u unigram.txt
在data下边会产生一个文件unigram.txt.uni
这个就是生成的字典 然后把字典改名为uni.lib放在可以读取的目录中即可
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- cp unigram.txt.uni /usr/local/sphinx/uni.lib
修改 sphinx.conf(/usr/local/sphinx/etc/sphinx.conf)配置文件
在索引中加入
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- charset_type = zh_cn.utf-8
- charset_dictpath = /usr/local/sphinx/
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- INSERT INTO `test`.`documents` (
- `id` ,
- `group_id` ,
- `group_id2` ,
- `date_added` ,
- `title` ,
- `content`
- )
- VALUES (
- NULL , '3', '9', NOW( ) , 'sphinx中文搜索', 'Sphinx是一个基于SQL的全文检索引擎,可以结合MySQL,PostgreSQL做全文搜索,它可以提供比数据库本身更专业的搜索功能,使得应用程序更容易实现专业化的全文检索。Sphinx特别为一些脚本语言设计搜索API接口,如PHP,Python,Perl,Ruby等,同时为MySQL也设计了一个存储引擎插件。 '
- );
(如果searchd已经再运行,先kill 它再运行)
注意:在添加完数据后,需要重新加载索引,这样新的数据才能被缓存进去
重建索引,成功后,开启索引监听
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- /usr/local/sphinx/bin/indexer --config /usr/local/sphinx/etc/sphinx.conf --all
- /usr/local/sphinx/bin/searchd --config /usr/local/sphinx/etc/sphinx.conf
在ide硬盘上建索引的速度
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- indexing index 'test1'...
- collected 423228 docs, 637.2 MB
- sorted 125.5 Mhits, 100.0% done
- total 423228 docs, 637201412 bytes
- total 753.401 sec, 845766.13 bytes/sec, 561.76 docs/sec
这样,就可以在phpmyadmin中进行测试了。
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- SELECT doc. * FROM documents doc JOIN sphinx ON ( doc.id = sphinx.id )
- WHERE query = '设计;mode= any '
好像没出来。。。。
修改 sphinx.conf
去掉下面的注释
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- sql_query_pre = SET NAMES utf8
再重启searchd就可以搜出结果了
使用service 控制sphinx
先增加一sphinx用户并属于website组(事先已存在),并修改sphinx目录的属主
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- useradd -d /usr/local/sphinx -g website -s /sbin/nologin sphinx
- chown -R sphinx:website /usr/local/sphinx
创建/etc/init.d/sphinx脚本
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- #!/bin/sh
- # sphinx: Startup script for Sphinx search
- #
- # chkconfig: 345 86 14
- # description: This is a daemon for high performance full text /
- # search of MySQL and PostgreSQL databases. /
- # See http://www.sphinxsearch.com/ for more info.
- #
- # processname: searchd
- # pidfile: $sphinxlocation/var/log/searchd.pid
-
- # Source function library.
- . /etc/rc.d/init.d/functions
-
- processname=searchd
- servicename=sphinx
- username=sphinx
- sphinxlocation=/usr/local/sphinx
- pidfile=$sphinxlocation/var/log/searchd.pid
- searchd=$sphinxlocation/bin/searchd
-
- RETVAL=0
-
- PATH=$PATH:$sphinxlocation/bin
-
- start() {
- echo -n $"Starting Sphinx daemon: "
- daemon --user=$username --check $servicename $processname
- RETVAL=$?
- echo
- [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$servicename
- }
-
- stop() {
- echo -n $"Stopping Sphinx daemon: "
-
- $searchd --stop
- #killproc -p $pidfile $servicename -TERM
- RETVAL=$?
- echo
- if [ $RETVAL -eq 0 ]; then
- rm -f /var/lock/subsys/$servicename
- rm -f $pidfile
- fi
- }
-
- # See how we were called.
- case "$1" in
- start)
- start
- ;;
- stop)
- stop
- ;;
- status)
- status $processname
- RETVAL=$?
- ;;
- restart)
- stop
- sleep 3
- start
- ;;
- condrestart)
- if [ -f /var/lock/subsys/$servicename ]; then
- stop
- sleep 3
- start
- fi
- ;;
- *)
- echo $"Usage: $0 {start|stop|status|restart|condrestart}"
- ;;
- esac
- exit $RETVAL
修改权限并加入到service,机器启动时自动启动
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- chmod 755 /etc/init.d/sphinx
- chkconfig --add sphinx
- chkconfig --level 345 sphinx on
- chkconfig --list|grep sphinx #检查下
- service sphinx start #运行
- service sphinx stop #停止,官方的脚本在我的as4上有点问题,所以粗鲁的改了下
- service sphinx restart #重启
- service sphinx status #查看是否运行
- #检查下已用sphinx用户运行
- ps aux |grep searchd
- sphinx 24612 0.0 0.3 11376 6256 pts/1 S 14:07 0:00 searchd