nginx + ngx_lua

nginx lua模块淘宝开发的nginx第三方模块,它能将lua语言嵌入到nginx配置中,从而使用lua就极大增强了nginx的能力.nginx以高并发而知名,lua脚本轻便,两者的搭配堪称完美.接下来请看如何安装nginx + ngx_lua模块.以及最后来个简单的测试.

如果你是ubuntu系统,请看nginx+lua+redis构建高并发应用

系统环境：centos/redhat

安装前准备好如下软件包
· nginx  地址：http://www.nginx.org
· luajit 地址：http://luajit.org/download.html
· HttpLuaModule 地址：http://wiki.nginx.org/HttpLuaModule

1. 下载安装LuaJIT

# cd /usr/local/src

# wget http://luajit.org/download/LuaJIT-2.0.2.tar.gz

# tar -xzvf LuaJIT-2.0.2.tar.gz

# cd LuaJIT-2.0.2

# make

出现如下内容表示编译成功

OK        Successfully built LuaJIT

make[1]: Leaving directory `/usr/local/src/LuaJIT-2.0.2/src'

==== Successfully built LuaJIT 2.0.2 ====

# make install

出现如下内容，表示安装成功

==== Successfully installed LuaJIT 2.0.2 to /usr/local ====

2. 下载准备nginx lua模块

# cd /usr/local/src

# wget https://github.com/chaoslawful/lua-nginx-module/archive/v0.8.6.tar.gz

# tar -xzvf v0.8.6

3. 安装nginx

3.1 安装

# cd /usr/local/src/

# wget http://nginx.org/download/nginx-1.4.2.tar.gz

# tar -xzvf nginx-1.4.2.tar.gz

# cd nginx-1.4.2

//先导入环境变量,告诉nginx去哪里找luajit

# export LUAJIT_LIB=/usr/local/lib

# export LUAJIT_INC=/usr/local/include/luajit-2.0

# ./configure --prefix=/usr/local/nginx-1.4.2 --add-module=../lua-nginx-module-0.8.6

# make -j2

# make install

3.1 常见错误

# /usr/local/nginx-1.4.2/sbin/nginx -v

./objs/nginx: error while loading shared libraries: libluajit-5.1.so.2: cannot open shared object file: No suchfile or directory

解决方法：

# ln -s /usr/local/lib/libluajit-5.1.so.2 /lib64/libluajit-5.1.so.2

4. nginx lua配置
nginx配置文件加入如下配置：

location ~* ^/2328(/.*) {

      default_type 'text/plain';

      content_by_lua 'ngx.say("hello, ttlsa lua")';

}

5. 启动测试
5.1 启动nginx

# /usr/local/nginx-1.4.2/sbin/nginx

5.2 访问测试

# curl http://test.ttlsa.com/2328/

hello, ttlsa lua //使用curl测试

nginx lua测试截图

nginx lua测试

nginx ngx_lua的安装到此结束
转载请注明出处： http://www.ttlsa.com/html/2328.html

 

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

# apt-get install lua5.1

# apt-get install liblua5.1-dev

# apt-get install liblua5.1-socket2

二.安装nginx

# 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

# 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

# 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

# git clone https://github.com/nrk/redis-lua.git

# cp redis-lua/src/redis.lua /usr/share/lua/5.1/

六.配置

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

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

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’

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

www.ttlsa.com

如需转载请注明出处： nginx+lua+redis构建高并发应用