Sphinx+Scws 搭建千万级准实时搜索&应用场景详解
2012年5月7日simple发表评论阅读评论目标：
一、搭建准确的千万级数据库的准实时搜索（见详情）
二、实现词语高亮（客户端JS渲染，服务器端渲染，详见7.3）
三、实现搜索联想（输入框onchange,ajax请求搜索，取10条在层上展示方可）
四、实现词库管理（仅需管理scws下的自定义词库dd.txt即可）
五、实现全文搜索（提供了两种方案，详见8）
案例：
本文第五部分，针对实际应用场景，典型案例分析。
软件：
sphinx: sphinx-2.0.2-beta
scws: scws-1.2.0
===========================================================================
一、Sphinx安装
1、安装
| 1234 | ./configure/opt/server/sphinx/opt/server/mysql makemake |
2、配置
见sphinx.conf
详见下文，多索引增量索引方案
3、php 扩展
性能方面，扩展和直接使用API文件，差别不大；可以做选择；都在源码API中；
个人建议使用API文件，系统更稳定
3.1 sphinx客户端libsphinxclient
| 123 | ./configure/opt/server/libsphinxclientmakemake |
3.2 扩展
下载 http://pecl.php.net/package/sphinx
| 1234 | /opt/server/php/bin/phpize./configure/opt/server/libsphinxclient/opt/server/php/bin/php-configmakemake |
查看
| 1 | /opt/server/php/bin/phpgrep |
使用手册
http://docs.php.net/manual/zh/book.sphinx.php
4、索引 启动服务
| 12 | /opt/server/sphinx/bin/indexer/opt/server/sphinx/bin/searchd |
二、php 分词 scws
官网 http://www.ftphp.com/scws/
1、 安装
| 123 | ./configure/opt/server/scwsmakemake |
2、 词库
scws-dict-chs-utf8.tar.bz2 解压放入 /opt/server/scws/etc
词库 dict.utf-8.xdb
规则 rules.utf-8.ini
3、 php 扩展
源码在phpext下
| 1234 | /opt/server/php/bin/phpize./configure/opt/server/scws/opt/server/php/bin/php-configmakemake |
vi php.ini
| 1234567 | [scws]extensionscws.default.charsetscws.default.fpath/opt/server/scws/etc 查看/opt/server/php/bin/phpgrep |
4、 分词测试
http://www.ftphp.com/scws/docs.php
详见测试文件 test_all.php
三、 索引
| 12345678 | //索引某个索引/opt/server/sphinx/bin/indexer//searchd/opt/server/sphinx/bin/indexer//指定索引搜索/opt/server/sphinx/bin/indexer'逗她男' |
1、 增量索引方案
//创建表记录偏移
| 1234567891011 | CREATE `counterid` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '统计标示', `max_doc_id` int(11) unsigned NOT NULL COMMENT '已统计数', PRIMARY KEY (`counterid`)) //增量索引/opt/server/sphinx/bin/indexer//合并索引/opt/server/sphinx/bin/indexer |
索引策略
1、搜索时，同时从主索引和增量索引取数据
2、每5分钟，运行一次增量索引；满足新数据搜索需求
3、每晚，运行一次主索引，同时会更新索引标示；再运行增量索引，实质为清空增量索引，避免与主索引重复索引
4、好处：避免开合并索引，合并索引效率较差
5、如数据量特别大，可考虑合并索引的方案
索引策略shell
| 12345678 | //add.sh#!/bin/sh/opt/server/sphinx/bin/indexer/opt/server/sphinx/var/log/add.sh.log //all.sh#!/bin/sh/opt/server/sphinx/bin/indexer/opt/server/sphinx/var/log/all.sh.log/opt/server/sphinx/bin/indexer/opt/server/sphinx/var/log/add.sh.log |
四、 多个表独立索引方案
场景：如有用户搜索、商品搜索等多个索引需求
策略：
配置一个多索引方案，每个表单独建立索引
前端根据不同类型选择不同的查询索引；全部，即选择所有索引
===========================================================================
五、性能及应用场景总结
1、基础数据、假如我们是一家商城；有用户user，商品goods，以及增量索引计数表search_counter。
| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051 | ------ -- ------ CREATE `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '商品ID', `name` varchar(50) NOT NULL COMMENT '商品名称', `price` int(11) NOT NULL COMMENT '商品价格', PRIMARY KEY (`id`)) -- ------ CREATE `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '用户ID', `name` varchar(50) NOT NULL COMMENT '用户昵称', `info` text NOT NULL COMMENT '用户简介', PRIMARY KEY (`id`)) -- ------ CREATE `counterid` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '统计标示', `max_doc_id` int(11) unsigned NOT NULL COMMENT '已统计数', PRIMARY KEY (`counterid`)) -- ------ INSERT(1,(2, |
2、编写配置文件 sphinx.conf
| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152 | ### #source{ type sql_host = 127.0.0.1 sql_user = root sql_pass = 123456 sql_db = sphinx sql_port = 3306 sql_query_pre = SET NAMES UTF8 sql_query_pre = REPLACE INTO search_counter SELECT 1,MAX(id) FROM user #创建主索引前更改标识位置 sql_query = SELECT id,name,info FROM user #sql_attr_uint = name sql_query_info = SELECT * FROM user WHERE id=$id} index{ source path = /opt/server/sphinx/var/data/userbase docinfo = extern mlock = 0 min_prefix_len = 0 min_infix_len = 0 min_word_len = 1 charset_type = utf-8 charset_table = U+FF10..U+FF19->0..9, 0..9, U+FF41..U+FF5A->a..z, U+FF21..U+FF3A->a..z,A..Z->a..z, a..z, U+0149, U+017F, U+0138, U+00DF, U+00FF, U+00C0..U+00D6->U+00E0..U+00F6,U+00E0..U+00F6, U+00D8..U+00DE->U+00F8..U+00FE, U+00F8..U+00FE, U+0100->U+0101, U+0101,U+0102->U+0103, U+0103, U+0104->U+0105, U+0105, U+0106->U+0107, U+0107, U+0108->U+0109,U+0109, U+010A->U+010B, U+010B, U+010C->U+010D, U+010D, U+010E->U+010F, U+010F,U+0110->U+0111, U+0111, U+0112->U+0113, U+0113, U+0114->U+0115, U+0115, U+0116->U+0117,U+0117, U+0118->U+0119, U+0119, U+011A->U+011B, U+011B, U+011C->U+011D, U+011D,U+011E->U+011F, U+011F, U+0130->U+0131, U+0131, U+0132->U+0133, U+0133, U+0134->U+0135,U+0135, U+0136->U+0137, U+0137, U+0139->U+013A, U+013A, U+013B->U+013C, U+013C,U+013D->U+013E, U+013E, U+013F->U+0140, U+0140, U+0141->U+0142, U+0142, U+0143->U+0144,U+0144, U+0145->U+0146, U+0146, U+0147->U+0148, U+0148, U+014A->U+014B, U+014B,U+014C->U+014D, U+014D, U+014E->U+014F, U+014F, U+0150->U+0151, U+0151, U+0152->U+0153,U+0153, U+0154->U+0155, U+0155, U+0156->U+0157, U+0157, U+0158->U+0159, U+0159,U+015A->U+015B, U+015B, U+015C->U+015D, U+015D, U+015E->U+015F, U+015F, U+0160->U+0161,U+0161, U+0162->U+0163, U+0163, U+0164->U+0165, U+0165, U+0166->U+0167, U+0167,U+0168->U+0169, U+0169, U+016A->U+016B, U+016B, U+016C->U+016D, U+016D, U+016E->U+016F,U+016F, U+0170->U+0171, U+0171, U+0172->U+0173, U+0173, U+0174->U+0175, U+0175,U+0176->U+0177, U+0177, U+0178->U+00FF, U+00FF, U+0179->U+017A, U+017A, U+017B->U+017C,U+017C, U+017D->U+017E, U+017E, U+0410..U+042F->U+0430..U+044F, U+0430..U+044F,U+05D0..U+05EA, U+0531..U+0556->U+0561..U+0586, U+0561..U+0587, U+0621..U+063A, U+01B9,U+01BF, U+0640..U+064A, U+0660..U+0669, U+066E, U+066F, U+0671..U+06D3, U+06F0..U+06FF,U+0904..U+0939, U+0958..U+095F, U+0960..U+0963, U+0966..U+096F, U+097B..U+097F,U+0985..U+09B9, U+09CE, U+09DC..U+09E3, U+09E6..U+09EF, U+0A05..U+0A39, U+0A59..U+0A5E,U+0A66..U+0A6F, U+0A85..U+0AB9, U+0AE0..U+0AE3, U+0AE6..U+0AEF, U+0B05..U+0B39,U+0B5C..U+0B61, U+0B66..U+0B6F, U+0B71, U+0B85..U+0BB9, U+0BE6..U+0BF2, U+0C05..U+0C39,U+0C66..U+0C6F, U+0C85..U+0CB9, U+0CDE..U+0CE3, U+0CE6..U+0CEF, U+0D05..U+0D39, U+0D60,U+0D61, U+0D66..U+0D6F, U+0D85..U+0DC6, U+1900..U+1938, U+1946..U+194F, U+A800..U+A805,U+A807..U+A822, U+0386->U+03B1, U+03AC->U+03B1, U+0388->U+03B5, U+03AD->U+03B5,U+0389->U+03B7, U+03AE->U+03B7, U+038A->U+03B9, U+0390->U+03B9, U+03AA->U+03B9,U+03AF->U+03B9, U+03CA->U+03B9, U+038C->U+03BF, U+03CC->U+03BF, U+038E->U+03C5,U+03AB->U+03C5, U+03B0->U+03C5, U+03CB->U+03C5, U+03CD->U+03C5, U+038F->U+03C9,U+03CE->U+03C9, U+03C2->U+03C3, U+0391..U+03A1->U+03B1..U+03C1,U+03A3..U+03A9->U+03C3..U+03C9, U+03B1..U+03C1, U+03C3..U+03C9, U+0E01..U+0E2E,U+0E30..U+0E3A, U+0E40..U+0E45, U+0E47, U+0E50..U+0E59, U+A000..U+A48F, U+4E00..U+9FBF,U+3400..U+4DBF, U+20000..U+2A6DF, U+F900..U+FAFF, U+2F800..U+2FA1F, U+2E80..U+2EFF,U+2F00..U+2FDF, U+3100..U+312F, U+31A0..U+31BF, U+3040..U+309F, U+30A0..U+30FF,U+31F0..U+31FF, U+AC00..U+D7AF, U+1100..U+11FF, U+3130..U+318F, U+A000..U+A48F,U+A490..U+A4CF ngram_len = 1 ngram_chars = U+4E00..U+9FBF, U+3400..U+4DBF, U+20000..U+2A6DF, U+F900..U+FAFF,U+2F800..U+2FA1F, U+2E80..U+2EFF, U+2F00..U+2FDF, U+3100..U+312F, U+31A0..U+31BF,U+3040..U+309F, U+30A0..U+30FF, U+31F0..U+31FF, U+AC00..U+D7AF, U+1100..U+11FF,U+3130..U+318F, U+A000..U+A48F, U+A490..U+A4CF} #source{ type sql_host = 127.0.0.1 sql_user = root sql_pass = 123456 sql_db = sphinx sql_port = 3306 sql_query_pre = SET NAMES UTF8 sql_query = SELECT id,name,info FROM user WHERE id>(SELECT max_doc_id FROM search_counter WHERE counterid=1) #增量索引是id大于标识位置的部分 #sql_attr_uint = name sql_query_info = SELECT * FROM user WHERE id=$id} indexuseradd{ source path = /opt/server/sphinx/var/data/useradd docinfo = extern mlock = 0 min_prefix_len = 0 min_infix_len = 0 min_word_len = 1 charset_type = utf-8 charset_table = U+FF10..U+FF19->0..9, 0..9, U+FF41..U+FF5A->a..z, U+FF21..U+FF3A->a..z,A..Z->a..z, a..z, U+0149, U+017F, U+0138, U+00DF, U+00FF, U+00C0..U+00D6->U+00E0..U+00F6,U+00E0..U+00F6, U+00D8..U+00DE->U+00F8..U+00FE, U+00F8..U+00FE, U+0100->U+0101, U+0101,U+0102->U+0103, U+0103, U+0104->U+0105, U+0105, U+0106->U+0107, U+0107, U+0108->U+0109,U+0109, U+010A->U+010B, U+010B, U+010C->U+010D, U+010D, U+010E->U+010F, U+010F,U+0110->U+0111, U+0111, U+0112->U+0113, U+0113, U+0114->U+0115, U+0115, U+0116->U+0117,U+0117, U+0118->U+0119, U+0119, U+011A->U+011B, U+011B, U+011C->U+011D, U+011D,U+011E->U+011F, U+011F, U+0130->U+0131, U+0131, U+0132->U+0133, U+0133, U+0134->U+0135,U+0135, U+0136->U+0137, U+0137, U+0139->U+013A, U+013A, U+013B->U+013C, U+013C,U+013D->U+013E, U+013E, U+013F->U+0140, U+0140, U+0141->U+0142, U+0142, U+0143->U+0144,U+0144, U+0145->U+0146, U+0146, U+0147->U+0148, U+0148, U+014A->U+014B, U+014B,U+014C->U+014D, U+014D, U+014E->U+014F, U+014F, U+0150->U+0151, U+0151, U+0152->U+0153,U+0153, U+0154->U+0155, U+0155, U+0156->U+0157, U+0157, U+0158->U+0159, U+0159,U+015A->U+015B, U+015B, U+015C->U+015D, U+015D, U+015E->U+015F, U+015F, U+0160->U+0161,U+0161, U+0162->U+0163, U+0163, U+0164->U+0165, U+0165, U+0166->U+0167, U+0167,U+0168->U+0169, U+0169, U+016A->U+016B, U+016B, U+016C->U+016D, U+016D, U+016E->U+016F,U+016F, U+0170->U+0171, U+0171, U+0172->U+0173, U+0173, U+0174->U+0175, U+0175,U+0176->U+0177, U+0177, U+0178->U+00FF, U+00FF, U+0179->U+017A, U+017A, U+017B->U+017C,U+017C, U+017D->U+017E, U+017E, U+0410..U+042F->U+0430..U+044F, U+0430..U+044F,U+05D0..U+05EA, U+0531..U+0556->U+0561..U+0586, U+0561..U+0587, U+0621..U+063A, U+01B9,U+01BF, U+0640..U+064A, U+0660..U+0669, U+066E, U+066F, U+0671..U+06D3, U+06F0..U+06FF,U+0904..U+0939, U+0958..U+095F, U+0960..U+0963, U+0966..U+096F, U+097B..U+097F,U+0985..U+09B9, U+09CE, U+09DC..U+09E3, U+09E6..U+09EF, U+0A05..U+0A39, U+0A59..U+0A5E,U+0A66..U+0A6F, U+0A85..U+0AB9, U+0AE0..U+0AE3, U+0AE6..U+0AEF, U+0B05..U+0B39,U+0B5C..U+0B61, U+0B66..U+0B6F, U+0B71, U+0B85..U+0BB9, U+0BE6..U+0BF2, U+0C05..U+0C39,U+0C66..U+0C6F, U+0C85..U+0CB9, U+0CDE..U+0CE3, U+0CE6..U+0CEF, U+0D05..U+0D39, U+0D60,U+0D61, U+0D66..U+0D6F, U+0D85..U+0DC6, U+1900..U+1938, U+1946..U+194F, U+A800..U+A805,U+A807..U+A822, U+0386->U+03B1, U+03AC->U+03B1, U+0388->U+03B5, U+03AD->U+03B5,U+0389->U+03B7, U+03AE->U+03B7, U+038A->U+03B9, U+0390->U+03B9, U+03AA->U+03B9,U+03AF->U+03B9, U+03CA->U+03B9, U+038C->U+03BF, U+03CC->U+03BF, U+038E->U+03C5,U+03AB->U+03C5, U+03B0->U+03C5, U+03CB->U+03C5, U+03CD->U+03C5, U+038F->U+03C9,U+03CE->U+03C9, U+03C2->U+03C3, U+0391..U+03A1->U+03B1..U+03C1,U+03A3..U+03A9->U+03C3..U+03C9, U+03B1..U+03C1, U+03C3..U+03C9, U+0E01..U+0E2E,U+0E30..U+0E3A, U+0E40..U+0E45, U+0E47, U+0E50..U+0E59, U+A000..U+A48F, U+4E00..U+9FBF,U+3400..U+4DBF, U+20000..U+2A6DF, U+F900..U+FAFF, U+2F800..U+2FA1F, U+2E80..U+2EFF,U+2F00..U+2FDF, U+3100..U+312F, U+31A0..U+31BF, U+3040..U+309F, U+30A0..U+30FF,U+31F0..U+31FF, U+AC00..U+D7AF, U+1100..U+11FF, U+3130..U+318F, U+A000..U+A48F,U+A490..U+A4CF ngram_len = 1 ngram_chars = U+4E00..U+9FBF, U+3400..U+4DBF, U+20000..U+2A6DF, U+F900..U+FAFF,U+2F800..U+2FA1F, U+2E80..U+2EFF, U+2F00..U+2FDF, U+3100..U+312F, U+31A0..U+31BF,U+3040..U+309F, U+30A0..U+30FF, U+31F0..U+31FF, U+AC00..U+D7AF, U+1100..U+11FF,U+3130..U+318F, U+A000..U+A48F, U+A490..U+A4CF} #source{ type sql_host = 127.0.0.1 sql_user = root sql_pass = 123456 sql_db = sphinx sql_port = 3306 sql_query_pre = SET NAMES UTF8 sql_query_pre = REPLACE INTO search_counter SELECT 2,MAX(id) FROM goods #创建主索引前更改标识位置 sql_query = SELECT id,name,price FROM goods #sql_attr_uint = name sql_query_info = SELECT * FROM goods WHERE id=$id} index{ source path = /opt/server/sphinx/var/data/goodsbase docinfo = extern mlock = 0 min_prefix_len = 0 min_infix_len = 0 min_word_len = 1 charset_type = utf-8 charset_table = U+FF10..U+FF19->0..9, 0..9, U+FF41..U+FF5A->a..z, U+FF21..U+FF3A->a..z,A..Z->a..z, a..z, U+0149, U+017F, U+0138, U+00DF, U+00FF, U+00C0..U+00D6->U+00E0..U+00F6,U+00E0..U+00F6, U+00D8..U+00DE->U+00F8..U+00FE, U+00F8..U+00FE, U+0100->U+0101, U+0101,U+0102->U+0103, U+0103, U+0104->U+0105, U+0105, U+0106->U+0107, U+0107, U+0108->U+0109,U+0109, U+010A->U+010B, U+010B, U+010C->U+010D, U+010D, U+010E->U+010F, U+010F,U+0110->U+0111, U+0111, U+0112->U+0113, U+0113, U+0114->U+0115, U+0115, U+0116->U+0117,U+0117, U+0118->U+0119, U+0119, U+011A->U+011B, U+011B, U+011C->U+011D, U+011D,U+011E->U+011F, U+011F, U+0130->U+0131, U+0131, U+0132->U+0133, U+0133, U+0134->U+0135,U+0135, U+0136->U+0137, U+0137, U+0139->U+013A, U+013A, U+013B->U+013C, U+013C,U+013D->U+013E, U+013E, U+013F->U+0140, U+0140, U+0141->U+0142, U+0142, U+0143->U+0144,U+0144, U+0145->U+0146, U+0146, U+0147->U+0148, U+0148, U+014A->U+014B, U+014B,U+014C->U+014D, U+014D, U+014E->U+014F, U+014F, U+0150->U+0151, U+0151, U+0152->U+0153,U+0153, U+0154->U+0155, U+0155, U+0156->U+0157, U+0157, U+0158->U+0159, U+0159,U+015A->U+015B, U+015B, U+015C->U+015D, U+015D, U+015E->U+015F, U+015F, U+0160->U+0161,U+0161, U+0162->U+0163, U+0163, U+0164->U+0165, U+0165, U+0166->U+0167, U+0167,U+0168->U+0169, U+0169, U+016A->U+016B, U+016B, U+016C->U+016D, U+016D, U+016E->U+016F,U+016F, U+0170->U+0171, U+0171, U+0172->U+0173, U+0173, U+0174->U+0175, U+0175,U+0176->U+0177, U+0177, U+0178->U+00FF, U+00FF, U+0179->U+017A, U+017A, U+017B->U+017C,U+017C, U+017D->U+017E, U+017E, U+0410..U+042F->U+0430..U+044F, U+0430..U+044F,U+05D0..U+05EA, U+0531..U+0556->U+0561..U+0586, U+0561..U+0587, U+0621..U+063A, U+01B9,U+01BF, U+0640..U+064A, U+0660..U+0669, U+066E, U+066F, U+0671..U+06D3, U+06F0..U+06FF,U+0904..U+0939, U+0958..U+095F, U+0960..U+0963, U+0966..U+096F, U+097B..U+097F,U+0985..U+09B9, U+09CE, U+09DC..U+09E3, U+09E6..U+09EF, U+0A05..U+0A39, U+0A59..U+0A5E,U+0A66..U+0A6F, U+0A85..U+0AB9, U+0AE0..U+0AE3, U+0AE6..U+0AEF, U+0B05..U+0B39,U+0B5C..U+0B61, U+0B66..U+0B6F, U+0B71, U+0B85..U+0BB9, U+0BE6..U+0BF2, U+0C05..U+0C39,U+0C66..U+0C6F, U+0C85..U+0CB9, U+0CDE..U+0CE3, U+0CE6..U+0CEF, U+0D05..U+0D39, U+0D60,U+0D61, U+0D66..U+0D6F, U+0D85..U+0DC6, U+1900..U+1938, U+1946..U+194F, U+A800..U+A805,U+A807..U+A822, U+0386->U+03B1, U+03AC->U+03B1, U+0388->U+03B5, U+03AD->U+03B5,U+0389->U+03B7, U+03AE->U+03B7, U+038A->U+03B9, U+0390->U+03B9, U+03AA->U+03B9,U+03AF->U+03B9, U+03CA->U+03B9, U+038C->U+03BF, U+03CC->U+03BF, U+038E->U+03C5,U+03AB->U+03C5, U+03B0->U+03C5, U+03CB->U+03C5, U+03CD->U+03C5, U+038F->U+03C9,U+03CE->U+03C9, U+03C2->U+03C3, U+0391..U+03A1->U+03B1..U+03C1,U+03A3..U+03A9->U+03C3..U+03C9, U+03B1..U+03C1, U+03C3..U+03C9, U+0E01..U+0E2E,U+0E30..U+0E3A, U+0E40..U+0E45, U+0E47, U+0E50..U+0E59, U+A000..U+A48F, U+4E00..U+9FBF,U+3400..U+4DBF, U+20000..U+2A6DF, U+F900..U+FAFF, U+2F800..U+2FA1F, U+2E80..U+2EFF,U+2F00..U+2FDF, U+3100..U+312F, U+31A0..U+31BF, U+3040..U+309F, U+30A0..U+30FF,U+31F0..U+31FF, U+AC00..U+D7AF, U+1100..U+11FF, U+3130..U+318F, U+A000..U+A48F,U+A490..U+A4CF ngram_len = 1 ngram_chars = U+4E00..U+9FBF, U+3400..U+4DBF, U+20000..U+2A6DF, U+F900..U+FAFF,U+2F800..U+2FA1F, U+2E80..U+2EFF, U+2F00..U+2FDF, U+3100..U+312F, U+31A0..U+31BF,U+3040..U+309F, U+30A0..U+30FF, U+31F0..U+31FF, U+AC00..U+D7AF, U+1100..U+11FF,U+3130..U+318F, U+A000..U+A48F, U+A490..U+A4CF} #source{ type sql_host = 127.0.0.1 sql_user = root sql_pass = 123456 sql_db = sphinx sql_port = 3306 sql_query_pre = SET NAMES UTF8 sql_query = SELECT id,name,price FROM goods WHERE id>(SELECT max_doc_id FROM search_counter WHERE counterid=2) #增量索引是id大于标识位置的部分 #sql_attr_uint = name sql_query_info = SELECT * FROM goods WHERE id=$id} index{ source path = /opt/server/sphinx/var/data/goodsadd docinfo = extern mlock = 0 min_prefix_len = 0 min_infix_len = 0 min_word_len = 1 charset_type = utf-8 charset_table = U+FF10..U+FF19->0..9, 0..9, U+FF41..U+FF5A->a..z, U+FF21..U+FF3A->a..z,A..Z->a..z, a..z, U+0149, U+017F, U+0138, U+00DF, U+00FF, U+00C0..U+00D6->U+00E0..U+00F6,U+00E0..U+00F6, U+00D8..U+00DE->U+00F8..U+00FE, U+00F8..U+00FE, U+0100->U+0101, U+0101,U+0102->U+0103, U+0103, U+0104->U+0105, U+0105, U+0106->U+0107, U+0107, U+0108->U+0109,U+0109, U+010A->U+010B, U+010B, U+010C->U+010D, U+010D, U+010E->U+010F, U+010F,U+0110->U+0111, U+0111, U+0112->U+0113, U+0113, U+0114->U+0115, U+0115, U+0116->U+0117,U+0117, U+0118->U+0119, U+0119, U+011A->U+011B, U+011B, U+011C->U+011D, U+011D,U+011E->U+011F, U+011F, U+0130->U+0131, U+0131, U+0132->U+0133, U+0133, U+0134->U+0135,U+0135, U+0136->U+0137, U+0137, U+0139->U+013A, U+013A, U+013B->U+013C, U+013C,U+013D->U+013E, U+013E, U+013F->U+0140, U+0140, U+0141->U+0142, U+0142, U+0143->U+0144,U+0144, U+0145->U+0146, U+0146, U+0147->U+0148, U+0148, U+014A->U+014B, U+014B,U+014C->U+014D, U+014D, U+014E->U+014F, U+014F, U+0150->U+0151, U+0151, U+0152->U+0153,U+0153, U+0154->U+0155, U+0155, U+0156->U+0157, U+0157, U+0158->U+0159, U+0159,U+015A->U+015B, U+015B, U+015C->U+015D, U+015D, U+015E->U+015F, U+015F, U+0160->U+0161,U+0161, U+0162->U+0163, U+0163, U+0164->U+0165, U+0165, U+0166->U+0167, U+0167,U+0168->U+0169, U+0169, U+016A->U+016B, U+016B, U+016C->U+016D, U+016D, U+016E->U+016F,U+016F, U+0170->U+0171, U+0171, U+0172->U+0173, U+0173, U+0174->U+0175, U+0175,U+0176->U+0177, U+0177, U+0178->U+00FF, U+00FF, U+0179->U+017A, U+017A, U+017B->U+017C,U+017C, U+017D->U+017E, U+017E, U+0410..U+042F->U+0430..U+044F, U+0430..U+044F,U+05D0..U+05EA, U+0531..U+0556->U+0561..U+0586, U+0561..U+0587, U+0621..U+063A, U+01B9,U+01BF, U+0640..U+064A, U+0660..U+0669, U+066E, U+066F, U+0671..U+06D3, U+06F0..U+06FF,U+0904..U+0939, U+0958..U+095F, U+0960..U+0963, U+0966..U+096F, U+097B..U+097F,U+0985..U+09B9, U+09CE, U+09DC..U+09E3, U+09E6..U+09EF, U+0A05..U+0A39, U+0A59..U+0A5E,U+0A66..U+0A6F, U+0A85..U+0AB9, U+0AE0..U+0AE3, U+0AE6..U+0AEF, U+0B05..U+0B39,U+0B5C..U+0B61, U+0B66..U+0B6F, U+0B71, U+0B85..U+0BB9, U+0BE6..U+0BF2, U+0C05..U+0C39,U+0C66..U+0C6F, U+0C85..U+0CB9, U+0CDE..U+0CE3, U+0CE6..U+0CEF, U+0D05..U+0D39, U+0D60,U+0D61, U+0D66..U+0D6F, U+0D85..U+0DC6, U+1900..U+1938, U+1946..U+194F, U+A800..U+A805,U+A807..U+A822, U+0386->U+03B1, U+03AC->U+03B1, U+0388->U+03B5, U+03AD->U+03B5,U+0389->U+03B7, U+03AE->U+03B7, U+038A->U+03B9, U+0390->U+03B9, U+03AA->U+03B9,U+03AF->U+03B9, U+03CA->U+03B9, U+038C->U+03BF, U+03CC->U+03BF, U+038E->U+03C5,U+03AB->U+03C5, U+03B0->U+03C5, U+03CB->U+03C5, U+03CD->U+03C5, U+038F->U+03C9,U+03CE->U+03C9, U+03C2->U+03C3, U+0391..U+03A1->U+03B1..U+03C1,U+03A3..U+03A9->U+03C3..U+03C9, U+03B1..U+03C1, U+03C3..U+03C9, U+0E01..U+0E2E,U+0E30..U+0E3A, U+0E40..U+0E45, U+0E47, U+0E50..U+0E59, U+A000..U+A48F, U+4E00..U+9FBF,U+3400..U+4DBF, U+20000..U+2A6DF, U+F900..U+FAFF, U+2F800..U+2FA1F, U+2E80..U+2EFF,U+2F00..U+2FDF, U+3100..U+312F, U+31A0..U+31BF, U+3040..U+309F, U+30A0..U+30FF,U+31F0..U+31FF, U+AC00..U+D7AF, U+1100..U+11FF, U+3130..U+318F, U+A000..U+A48F,U+A490..U+A4CF ngram_len = 1 ngram_chars = U+4E00..U+9FBF, U+3400..U+4DBF, U+20000..U+2A6DF, U+F900..U+FAFF,U+2F800..U+2FA1F, U+2E80..U+2EFF, U+2F00..U+2FDF, U+3100..U+312F, U+31A0..U+31BF,U+3040..U+309F, U+30A0..U+30FF, U+31F0..U+31FF, U+AC00..U+D7AF, U+1100..U+11FF,U+3130..U+318F, U+A000..U+A48F, U+A490..U+A4CF} indexer{ mem_limit = 128M} searchd{ listen = 9312 log = /opt/server/sphinx/var/log/searchd.log query_log = /opt/server/sphinx/var/log/query.log read_timeout = 5 max_children = 30 pid_file = /opt/server/sphinx/var/log/searchd.pid max_matches = 1000 seamless_rotate = 1 preopen_indexes = 1 unlink_old = 1 workers = threads # for RT to work binlog_path = /opt/server/sphinx/var/data} |
3、索引，启动服务
| 12 | /opt/server/sphinx/bin/indexer/opt/server/sphinx/bin/searchd |
4、索引方案
索引策略
1、搜索时，同时从主索引和增量索引取数据
2、每5分钟，运行一次增量索引；满足新数据搜索需求
3、不同表的索引，分别执行方可
4、每晚，运行一次主索引，同时会更新索引标示；再运行增量索引，实质为清空增量索引，避免与主索引重复索引
5、好处：避免开合并索引，合并索引效率较差
6、如数据量特别大，可考虑合并索引的方案
索引策略shell
| 12345678 | //add.sh#!/bin/sh/opt/server/sphinx/bin/indexergoodsadd --rotate >> /opt/server/sphinx/var/log/add.sh.log //all.sh#!/bin/sh/opt/server/sphinx/bin/indexer/opt/server/sphinx/var/log/all.sh.log/opt/server/sphinx/bin/indexergoodsadd --rotate >> /opt/server/sphinx/var/log/add.sh.log |
5、测试程序
| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100 | <?php $b_time = microtime(true); echo.$b_time.'</p>'; //搜索词 $key = trim($_GET['k']); //搜索类型 $type't']); switch ($type) { case: $index = 'useradd,userbase,goodsadd,goodsbase'; break; case: $index = 'useradd,userbase'; break; case: $index = 'goodsadd,goodsbase'; break; default: $index = 'useradd,userbase,goodsadd,goodsbase'; } //========================================分词 $so = scws_new(); $so->set_charset('utf-8'); //默认词库 $so->add_dict(ini_get('scws.default.fpath') . '/dict.utf-8.xdb'); //自定义词库 $so->add_dict('./dd.txt',SCWS_XDICT_TXT); //默认规则 $so->set_rule(ini_get('scws.default.fpath') . '/rules.utf-8.ini'); //设定分词返回结果时是否去除一些特殊的标点符号 $so->set_ignore(true); //设定分词返回结果时是否复式分割，如“中国人”返回“中国＋人＋中国人”三个词。 // //1,2,4,8 分别对应常量 SCWS_MULTI_SHORT SCWS_MULTI_DUALITY SCWS_MULTI_ZMAIN SCWS_MULTI_ZALL $so->set_multi(false); //设定是否将闲散文字自动以二字分词法聚合 $so->set_duality(false); //设定搜索词 $so->send_text($key); $words_array = $so->get_result(); foreach($words_array as $v) { $words = $words.'|('.$v['word'].')'; } //加入全词 #$words = '('.$key.')'.$words; $words = trim($words,'|'); $so->close(); echo.$key.'</p>'; echo.$words.'</p>'; //var_dump($words); //exit; //========================================搜索 #require_once 'sphinxapi.php'; $sc = new SphinxClient(); $sc->SetServer('127.0.0.1',9312); #$sc->SetMatchMode(SPH_MATCH_ALL); $sc->SetMatchMode(SPH_MATCH_EXTENDED); $sc->SetArrayResult(TRUE); $res = $sc->Query($words,$index); var_dump($res); $e_time = microtime(true); $time echo.$e_time.'</p>'; echo.$time.'</p>'; exit; ?> |
5.1 加入用户信息测试
| 12345678910111213141516 | ------ INSERTid`, `name`, `price`) VALUES(1,'伤心纸杯的钢板哥哥', 20),(2,'钢板他哥哥', 30),(3,'钢板哥哥', 20),(4,'钢板他的哥哥', 65); ------ INSERTid`, `name`, `info`) VALUES(1,'钢板哥哥','我是钢板哥，我来自四川，喜欢吃辣椒，也喜欢妹纸。'); |
5.2 类别商品 多个关键字对比
| 12345678910111213141516171819202122232425262728293031 | 关键字分词：(钢板)结果：1/23042/23043/23044/2304 关键字分词：(钢板)|(哥哥)结果：排序/权值1/42793/42792/32794/2279 关键字分词：(钢板)|(他)|(哥哥)结果：2/53494/43491/33343/3334 关键字分词：(钢板)|(的)|(哥哥)结果：2/43341/33494/33493/3334 |
6、小结
通过分词 和 采用 SPH_MATCH_EXTENDED (Sphinx内部查询语言的表达式) 模式；
能获取较好的搜索结果，排序和权值都是比较理想的。
7、优化扩展
7.1
如访问量较大，可将分词结果添加一层memecache，避免每次调用分词接口。
7.2
本文的的准实时索引，只对新增数据有效，如修改了老数据的内容则不能及时索引。
补充方案:(基于性能，不推荐)
7.2.1 全文重新索引
7.2.1在启一个索引为 updategoods，当数据发生改变时候，将来变化数据ID存如数据库，动态读取更新；
定时将更新的数据merge到主索引
7.3 词语高亮
利用API，SphinxClient::buildExcerpts可实现对关键词加入标签高亮
| 1 | public |
$opts 可实现对索引ID，搜索出的详情数组；进行匹配处理，得出理想的搜索结果。具体参数，见PHP手册。
8、全文搜索
由于sphinx索引ID唯一的问题，跨表的全文搜索不能直接实现；即，不能简单通过查询多个索引而获得结果；
不过通过如下方式，亦可实现全文搜索。
方案A
可在索引时对每个表的ID进行处理；
如：SELECT (id+1000000) AS id,name,price FROM goods;
在提供外部使用时，根据规则（如：ID > 1000000 为商品类）还原相应ID即可。
方案B
将数据来源存储为一个属性,将类比在属性中返回；获得的结果集中，可通过source_id进行类别区分了；如下：
source src1
{
sql_query = SELECT id, 1 AS source_id FROM table1
sql_attr_uint = source_id
…
}
source src2
{
sql_query = SELECT id, 2 AS source_id FROM table2
sql_attr_uint = source_id
…
}