nginx.conf学习

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nginx的模块
upstream-keepalive-nginx-module-0.3
在openresty里面保函，长连接的。很有用哦
注意那个echo命令
看那个变量不认识就打印出来吧

在mac下
echo-nginx-module里面有echo等
nginx_hello_world是自己写的，
ngx_devel_kit是set-misc-nginx的以来
set-misc-nginx是设置参数的set_unescape_uri等

./configure \
--with-debug \
--prefix=/Users/apple/Desktop/myfile/nginxtest/nginx \
--add-module=/Users/apple/Desktop/myfile/nginxtest/echo-nginx-module-0.37rc7/ \
--add-module=/Users/apple/Desktop/myfile/nginxtest/nginx_hello_world/ \
--add-module=/Users/apple/Desktop/myfile/nginxtest/ngx_devel_kit-0.2.17/ \
--add-module=/Users/apple/Desktop/myfile/nginxtest/set-misc-nginx-module-0.22rc3/  \
--with-cc-opt="-Wno-deprecated-declarations"

效果
sh-3.2# curl http://localhost/testurl
hello anonymous!
sh-3.2# curl http://localhost/testurl?persion=heihei
hello heihei!
sh-3.2#
配置文件为：

location /hello {
            hello_world;
        }
#       location /foo {
#            set $a hello;
#            echo_exec /bar;
#        }
# 
#        location /bar {
#            echo "a = [$a]";
#        }
        location /foo {
            set $a hello;
            rewrite ^ /bar;
        }

        location /bar {
            echo "a = [$a]";
        }

        location /testurl {
            set_unescape_uri $persion $arg_persion;
            set_if_empty    $persion 'anonymous';
            echo 'hello $persion!';
        }
       location /merge {
            echo '[';
            echo_location_async /moon;
            echo ',';
            echo_location_async /earth;
            echo ']';
        }
        location /moon {
            echo '"moon"';
        }
        location /earth {
            echo '"earth"';
        }

注意使用$arg_persion,就是url后面的参数persion
curl http://localhost/testurl?persion=haha
curl http://localhost/merge
用ab压
sh-3.2# ab -n 1 http://localhost:80/testurl
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking localhost (be patient)...apr_socket_recv: Connection refused (61)
是因为没起httpd
蛋疼ab不能直接用？
httpd
之后
还要ulimit -a
看看open file是否够
如果不够 ulimit  -n 10240

安装http_load:http://www.acme.com/software/http_load/

http_load
-P 并发用户的进程数
-f 总计的访问次数
-r 每秒的访问次数
-s 总计的访问时间
url是一个文件
里面存 http://localhost/testurl
http_load -rate 10 -second 3 url