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

 

 

1 2 3

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

 

二.安装nginx

 

 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

# 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

 

 

1 2 3 4

# 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

 

 

1 2 3

# 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

 

 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

user www - data ; worker _processes 8 ; worker_cpu _affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000 ; error_log logs / error . log notice ; pid logs / nginx . pid ; worker_rlimit _nofile 60000 ;   events { worker _connections 1024 ; use epoll ;   }   http { include mime . types ; default_type application / octet - stream ; access_log logs / access . log ; sendfile on ; tcp_nopush on ; tcp_nodelay on ; keepalive _timeout 60 ; types_hash_max _size 2048 ; server_tokens off ; lua_code_cache on ;   upstream redis_pool { server 192.168.1.39 : 6379 ; keepalive 1024 single ; //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 { listen 80 ; server _name 192.168.1.211 ;   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

 

1 2 3 4 5 6 7 8 9 10 11 12

local json = require ( "json" ) local parser = require ( "redis.parser" ) local res = ngx . location . capture ( "/get_redis" , { args = { key = ngx . var . arg _key } } ) if res . status == 200 then 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

 

1 2 3

redis 192.168.1.39 : 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