sphinx全文索引教程

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。

PHPCMS V9支持这一技术，当然我们需要事先在服务器上做一些相应的部署

英文介绍：http://www.sphinxsearch.com/docs/manual-0.9.9.html

一、安装sphinx

在Windows上安装sphinx

1.下载支持mysql的包 http://www.sphinxsearch.com/downloads/sphinx-0.9.9-win32.zip
2.解压缩 sphinx-0.9.9-win32.zip 到 D:\sphinx
3.安装sphinx服务，在命令行执行命令

D:\sphinx\searchd --install --config d:\sphinx\sphinx.conf --servicename SphinxSearch

英文参照：http://www.sphinxsearch.com/docs

在Linux服务器上安装sphinx

1.下载源码包 http://www.sphinxsearch.com/downloads/sphinx-0.9.9.tar.gz

		$ tar xzvf sphinx-0.9.8.tar.gz
		$ cd sphinx
		$ ./configure --prefix=/usr/local/sphinx --with-mysql=/usr/local/mysql
		$ make
		$ make install

问题一

			/usr/local/sphinx-0.9.9/src/sphinx.cpp:20060: undefined reference to `libiconv_open'
			/usr/local/sphinx-0.9.9/src/sphinx.cpp:20078: undefined reference to `libiconv'
			/usr/local/sphinx-0.9.9/src/sphinx.cpp:20084: undefined reference to `libiconv_close'
			collect2: ld returned 1 exit status
			make[2]: *** [indexer] Error 1
			make[2]: Leaving directory `/home/jling/sphinx-0.9.9/src'
			make[1]: *** [all] Error 2
			make[1]: Leaving directory `/home/jling/sphinx-0.9.9/src'
			make: *** [all-recursive] Error

解决办法：打开configure文件，找到“#define USE_LIBICONV 1”，将注释去掉，并将1改成0。

问题二

 error while loading shared libraries: libmysqlclient.so.16: cannot open shared object file: No such file or directory

解决办法：

	 64位系统ln -s /usr/local/webserver/mysql/lib/mysql/libmysqlclient.so.16.0.0 /usr/lib64/libmysqlclient.so.16
     32位系统ln -s /usr/local/webserver/mysql/lib/mysql/libmysqlclient.so.16.0.0 /usr/lib/libmysqlclient.so.16

sphinx.conf样例

source main
	{
	 type     = mysql    #数据库类型
	 sql_host    = 10.228.134.211 #数据库ip
	 sql_user    = admin    #数据库用户名
	 sql_pass    = admin    #数据库密码
	 sql_db     = phpcms_v9   #数据库名
	 sql_port    = 3306    # 数据库端口
sql_query_pre = SET NAMES utf8
	 sql_query_pre = REPLACE INTO v9_sphinx_counter SELECT 1, MAX(searchid) FROM v9_search
	 sql_query = SELECT searchid, adddate, siteid, typeid, id, data FROM v9_search \
		WHERE searchid>=$start AND searchid<=$end
	 sql_query_range  = SELECT 1,max_doc_id FROM v9_sphinx_counter WHERE counter_id=1
	 sql_range_step = 5000
#字符串属性设置、需要过滤、排序的时候用到
	 sql_attr_uint  = typeid
	 sql_attr_uint  = siteid
	 sql_attr_uint  = id
	 sql_attr_timestamp  = adddate
	 sql_query_info  = SELECT * FROM v9_search WHERE searchid=$id
	}
 source delta
	{
	 type     = mysql    #数据库类型
	 sql_host    = 10.228.134.211 #数据库ip
	 sql_user    = admin    #数据库用户名
	 sql_pass    = admin    #数据库密码
	 sql_db     = phpcms_v9   #数据库名
	 sql_port    = 3306    # 数据库端口
sql_query_pre = SET NAMES utf8
		sql_query = SELECT searchid, adddate, siteid, typeid, id, data FROM v9_search \
	  WHERE searchid >( SELECT max_doc_id FROM v9_sphinx_counter WHERE counter_id=1 )
	 sql_query_post = REPLACE INTO v9_sphinx_counter SELECT 1, MAX(searchid) FROM v9_search
	 #字符串属性设置、需要过滤、排序的时候用到
	 sql_attr_uint  = typeid
	 sql_attr_uint  = siteid
	 sql_attr_uint  = id
	 sql_attr_timestamp  = adddate
	 sql_query_info  = SELECT * FROM v9_search WHERE searchid=$id
	}
 #主索引
	index main
	{
	 source = main
	 # 放索引的目录
	 path = D:\sphinx\data\main
	 # 编码
	 charset_type = utf-8
	 # 指定utf-8的编码表
	 charset_table = 0..9, A..Z->a..z, _, a..z, U+410..U+42F->U+430..U+44F, U+430..U+44F
	 # 简单分词，只支持0和1，如果要搜索中文，请指定为1
	 ngram_len = 1
	 # 需要分词的字符，如果要搜索中文，去掉前面的注释
	 ngram_chars   = U+3000..U+2FA1F
	}
 #增量索引
	index delta
	{
		source = delta
		path = D:\sphinx\data\delta
	 # 编码
	 charset_type = utf-8
	 # 指定utf-8的编码表
	 charset_table = 0..9, A..Z->a..z, _, a..z, U+410..U+42F->U+430..U+44F, U+430..U+44F
	 # 简单分词，只支持0和1，如果要搜索中文，请指定为1
	 ngram_len = 1
	 # 需要分词的字符，如果要搜索中文，去掉前面的注释
	 ngram_chars   = U+3000..U+2FA1F
	}
                 
 indexer
	{
	 mem_limit    = 128M
	}
 searchd
	{
	 port     = 9312
	 log      = D:\sphinx\data\phpcms\searchd.log
	 query_log    = D:\sphinx\data\phpcms\query.log
	 read_timeout   = 5
	 max_children   = 30
	 pid_file    = D:\sphinx\data\phpcms\searchd.pid
	 max_matches    = 2000
	 seamless_rotate   = 0
	 preopen_indexes   = 0
	 unlink_old    = 1
	}

附件：设置计划任务更新索引

1.windows下

需要设置计划任务
#凌晨4点合并索引，执行merge.bat
#其余时间每分钟更新索引，执行delta.bat

merge.bat

		@ECHO off
		D:\sphinx\bin\indexer.exe --config D:\sphinx\sphinx.conf --merge main delta --rotate
		echo indexing, window will close when complete

delta.bat

		@ECHO off
		D:\sphinx\bin\indexer.exe --config D:\sphinx\sphinx.conf delta --rotate
		echo indexing, window will close when complete

2.linux下编辑定时任务 crontab -e

	#凌晨4点合并索引，其余时间每分钟更新索引
	* 0-3 * * * /usr/local/sphinx/bin/indexer --config /usr/local/sphinx/etc/sphinx.conf delta --rotate
	* 6-23 * * * /usr/local/sphinx/bin/indexer --config /usr/local/sphinx/etc/sphinx.conf delta --rotate
	0 4 * * * /usr/local/sphinx/bin/indexer --config /usr/local/sphinx/etc/sphinx.conf --merge main delta --rotate