Coreseek 是一款中文全文检索/搜索软件，以GPLv2许可协议开源发布，基于Sphinx研发并独立发布，专攻中文搜索和信息处理领域，适用于行业/垂直搜索、论坛/站内搜索、数据库搜索、文档/文献检索、信息检索、数据挖掘等应用场景，用户可以免费下载使用。
coreseek安装需要预装的软件：yum install make gcc g++ gcc-c++ libtool autoconf automake imake mysql-devel libxml2-devel expat-devel
cd /usr/local/src
wget http://www.coreseek.cn/uploads/csft/3.2/coreseek-3.2.14.tar.gz
tar -xzvf coreseek-3.2.14.tar.gz
cd coreseek-3.2.14
##安装mmseg
cd mmseg-3.2.14
./bootstrap #输出的warning信息可以忽略，如果出现error则需要解决
./configure --prefix=/usr/local/mmseg3
make && make install
cd ..
## 安装完成后，mmseg使用的词典和配置文件将自动安装到/usr/local/mmseg3/etc中
##安装coreseek
cd csft-3.2.14
sh buildconf.sh #输出的warning信息可以忽略，如果出现error则需要解决
./configure --prefix=/usr/local/coreseek --without-unixodbc --with-mmseg --with-mmseg-includes=/usr/local/mmseg3/include/mmseg/ --with-mmseg-libs=/usr/local/mmseg3/lib/ --with-mysql ##如果提示mysql问题，可以查看MySQL数据源安装说明
make && make install
cd ..
cd /usr/local/coreseek/etc
cp sphinx-min.conf.dist sphinx.conf
vi sphinx.conf
内容示例如下(localhost,DB_USER,DB_PASSWORD,DB_NAME自行修改)
#
# Minimal Sphinx configuration sample (clean, simple, functional)
#
source content
{
type = mysql
sql_host = localhost
sql_user = DB_USER
sql_pass = DB_PASSWORD
sql_db = DB_NAME
sql_port = 3306 # optional, default is 3306
sql_query_pre = SET NAMES utf8
sql_query = \
SELECT id, title, pub_time, group_id, content FROM contents where status = '1'
sql_attr_uint = group_id
sql_attr_timestamp = pub_time
sql_query_info = SELECT * FROM contents WHERE id=$id
}
index content
{
source = content
path = /usr/local/coreseek/var/data/content
docinfo = extern
charset_dictpath = /usr/local/mmseg3/etc/
charset_type = zh_cn.utf-8
ngram_len = 0
}
indexer
{
mem_limit = 32M
}
searchd
{
port = 9312
log = /usr/local/coreseek/var/log/searchd.log
query_log = /usr/local/coreseek/var/log/query.log
read_timeout = 5
max_children = 30
pid_file = /usr/local/coreseek/var/log/searchd.pid
max_matches = 1000
seamless_rotate = 1
preopen_indexes = 1
unlink_old = 1
}然后根据以上配置建立索引文件
/usr/local/coreseek/bin/indexer -c /usr/local/coreseek/etc/sphinx.conf --all --rotate
启动命令
/usr/local/coreseek/bin/searchd -c /usr/local/coreseek/etc/sphinx.conf
然后在coreseek目录下，新建3个sh脚本，以便操作
停止服务stop.sh
#!/bin/bash /usr/local/coreseek/bin/searchd -c /usr/local/coreseek/etc/sphinx.conf --stop
建立索引build.sh
#!/bin/bash /usr/local/coreseek/bin/indexer -c /usr/local/coreseek/etc/sphinx.conf --all --rotate
启动服务start.sh
#!/bin/bash /usr/local/coreseek/bin/searchd -c /usr/local/coreseek/etc/sphinx.conf
添加可执行权限
chmod +x start.sh chmod +x stop.sh chmod +x build.sh
运行start.sh后，使用crontab定时执行build.sh,就可更新索引。（注：因为数据量小且更新不算很频繁，未使用增量索引，只是定时重建主索引，新版本CoreSeek全文搜索 4.1 支持实时索引）
crontab -e 0 2 * * * sh /usr/local/coreseek/build.sh >/dev/null 2>&1
每天凌晨2点重建一次索引，忽略日志输出。
在/usr/local/src/coreseek.3.2.14/csft-3.2.14/api目录下提供了PHP的接口文件 sphinxapi.php，这个文件包含一个SphinxClient的类,copy到自己的web目录下
通过如下方式进行搜索
$s_key = trim($s_key);
if(strpos($s_key,'\'') || strpos($s_key,'\"') || strpos($s_key,'\;')) {
exit('非法字符');
}
require("sphinxapi.php");
$page_nums = 20;
$offset_start = ($page_index-1)*$page_nums;
$offset_end = $offset_start + $page_nums;
$cl = new SphinxClient();
$cl->SetServer('localhost', 9312);
$cl->SetArrayResult(true);
$cl->SetMatchMode(SPH_MATCH_ALL);
$cl->SetLimits($offset_start,$offset_end);
$cl->SetSortMode(SPH_SORT_RELEVANCE);
$res = $cl->Query($s_key,"content");