nginx+lua+redis构建高并发应用

ngx_lua将lua嵌入到nginx，让nginx执行lua脚本，高并发，非阻塞的处理各种请求。

url请求nginx服务器，然后lua查询redis，返回json数据。

备注：centos或者redhat系统请跳转到nginx + ngx_lua安装测试

一.安装lua

 

 

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# apt-get install lua5.1 # apt-get install liblua5.1-dev # apt-get install liblua5.1-socket2

 

二.安装nginx

 

 

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# apt-get install git-core # git clone https://github.com/simpl/ngx_devel_kit.git # git clone https://github.com/chaoslawful/lua-nginx-module.git # git clone https://github.com/agentzh/redis2-nginx-module.git # git clone https://github.com/agentzh/set-misc-nginx-module.git # git clone https://github.com/agentzh/echo-nginx-module.git # git clone https://github.com/catap/ngx_http_upstream_keepalive.git # apt-get install libpcre3 libpcre3-dev libltdl-dev libssl-dev libjpeg62 libjpeg62-dev libpng12-0 libpng12-dev libxml2-dev libcurl4-openssl-dev libmcrypt-dev autoconf libxslt1-dev libgd2-noxpm-dev libgeoip-dev libperl-dev -y # wget http://nginx.org/download/nginx-1.0.8.tar.gz # tar zxvf nginx-1.0.8.tar.gz # cd nginx-1.0.8 # ./configure --prefix=/usr/local/nginx --with-debug --with-http_addition_module \ --with-http_dav_module--with-http_flv_module--with-http_geoip_module\ --with-http_gzip_static_module--with-http_image_filter_module--with-http_perl_module\ --with-http_random_index_module--with-http_realip_module--with-http_secure_link_module\ --with-http_stub_status_module--with-http_ssl_module--with-http_sub_module\ --with-http_xslt_module--with-ipv6--with-sha1=/usr/include/openssl\ --with-md5=/usr/include/openssl--with-mail--with-mail_ssl_module\ --add-module=../ngx_devel_kit\ --add-module=../echo-nginx-module\ --add-module=../lua-nginx-module\ --add-module=../redis2-nginx-module\ --add-module=../ngx_http_upstream_keepalive\ --add-module=../set-misc-nginx-module # make # make install

 

三.安装lua-redis-parser

 

 

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# git clone https://github.com/agentzh/lua-redis-parser.git # export LUA_INCLUDE_DIR=/usr/include/lua5.1 # make CC=gcc # make install CC=gcc

 

四.安装json

 

 

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# wget http://files.luaforge.net/releases/json/json/0.9.50/json4lua-0.9.50.zip # unzip json4lua-0.9.50.zip # cp json4lua-0.9.50/json/json.lua /usr/share/lua/5.1/

 

五.安装redis-lua

 

 

1 2	# git clone https://github.com/nrk/redis-lua.git # cp redis-lua/src/redis.lua /usr/share/lua/5.1/

 

六.配置

 

 

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user www-data; worker_processes8; worker_cpu_affinity0000000100000010000001000000100000010000001000000100000010000000; error_log logs/error.log notice; pid logs/nginx.pid; worker_rlimit_nofile60000;   events{ worker_connections1024; useepoll;   }   http{ include mime.types; default_type application/octet-stream; access_log logs/access.log; sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout60; types_hash_max_size2048; server_tokens off; lua_code_cache on;   upstreamredis_pool{ server192.168.1.39:6379; keepalive1024single;//定义连接池大小，当连接数达到此数后，后续的连接为短连接   }   server{ listen80; server_name192.168.1.211;   location/get_redis{ #internal; set_unescape_uri$key$arg_key; redis2_query hgetall$key; redis2_pass redis_pool; }   location/json{ content_by_lua_file conf/fuck.lua; } } }

# vim fuck.lua

 

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local json=require("json") local parser=require("redis.parser") local res=ngx.location.capture("/get_redis",{ args={key=ngx.var.arg_key} }) ifres.status==200then reply=parser.parse_reply(res.body) value=json.encode(reply) ngx.say(value) a=json.decode(value) ngx.say(a[2]) end

 

七.测试

# redis-cli -h 192.168.1.39

 

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redis192.168.1.39:6379>HMSET ttlsa www www.ttlsa.com mail mail.ttlsa.com   OK

# curl 'http://192.168.1.211/json?key=ttlsa'

 

1	["www","www.ttlsa.com","mail","mail.ttlsa.com"]

www.ttlsa.com