nginx+lua+redis构建高并发应用

TwiSGF 4年前

来自: http://blog.csdn.net//jiao_fuyou/article/details/36186485


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。


一.安装lua-nginx-module

参见《LNMLGC》架构


二.安装redis2-nginx-module模块

get https://github.com/openresty/echo-nginx-module
get https://github.com/openresty/redis2-nginx-module
get https://github.com/agentzh/set-misc-nginx-module.git

#
./configure --prefix=/usr/local/nginx   \
--with-debug                            \
--with-http_stub_status_module          \
--with-http_ssl_module                  \
--with-pcre=../pcre-8.21                \
--add-module=../ngx_devel_kit-0.2.19    \
--add-module=../lua-nginx-module-0.9.8  \
--add-module=../echo-nginx-module       \
--add-module=../redis2-nginx-module     \
--add-module=../set-misc-nginx-module


# make
# make install

三.安装lua-redis-parser
# git clone https:
//github.com/agentzh/lua-redis-parser.git
# export LUA_INCLUDE_DIR=/usr/local/include/luajit-2.0
# make CC=gcc
# make install CC=gcc

四.安装json
# 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/local/lua/lib/

五.安装redis-lua
# git clone https:
//github.com/nrk/redis-lua.git
# cp redis-lua/src/redis.lua /usr/local/lua/lib/

六.配置
...  http {      ...      upstream redis_pool {          server localhost: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 {          ...          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/test.lua;          }      }  }

# vi test.lua,放在nginx.conf同目录下
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
127.0.0.1:6379> HMSET ttlsa www www.ttlsa.com mail mail.ttlsa.com
OK
127.0.0.1:6379> hgetall ttlsa
1) "www"
2) "www.ttlsa.com"
3) "mail"
4) "mail.ttlsa.com"

# curl http://localhost/json?key=ttlsa

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

www.ttlsa.com