Nginx+lua+redis Constructing high Concurrent Web application _nginx

This article describes how to build high concurrent Web applications with Nginx+lua+redis, curl requests Nginx,nginx to return JSON data through Lua query Redis.

First, installation
1. Installation Lua-redis-parser

Copy Code code as follows:

#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

2. Install JSON

Copy Code code as follows:

#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/

3. Installation Redis-lua

Copy Code code as follows:

#git Clone Https://github.com/nrk/redis-lua.git
#cp REDIS-LUA/SRC/REDIS.LUA/USR/SHARE/LUA/5.1/

Second, the configuration

Copy Code code as follows:

#vi/etc/nginx/nginx.conf
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 192.168.1.105:6379;
KeepAlive 1024 single;
Defines the connection pool size, and when the number of connections reaches this number, subsequent connections are short connections
}

server {
Listen 80;
server_name 192.168.1.104;

                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_redis.lua;
}
}
}

Third, testing
1, write the script
Write the Test_redis.lua script in the configuration above

Copy Code code as follows:

#vi Test_redis.lua
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 = = Then
Reply = parser.parse_reply (res.body)
Value = Json.encode (Reply)
Ngx.say (value)
A = Json.decode (value)
Ngx.say (A[2])
End

2, the construction of data

Copy Code code as follows:

#redis-cli-h 192.168.1.105-p 6379
Redis 192.168.1.105:6379>hmset testnlr www www.joyvc.cn mail mail.joyvc.cn

3. Start testing

Copy Code code as follows:

#curl ' HTTP://192.168.1.104/JSON?KEY=TESTNLR '
["www", "www.joyvc.cn", "Mail", "mail.joyvc.cn"]