varnish应用

Nginx+Varnish+基本业务

ngnix nginx.conf配置文件

user  root;
worker_processes  ;

error_log  logs/error.log crit;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

pid        logs/nginx.pid;

events {
        use epoll;
    worker_connections  ;
}

http {
    include       mime.types;
    include                ccproxy.conf;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  logs/access.log  main;

        server_names_hash_bucket_size     ;
        client_body_buffer_size      128k;
        client_header_buffer_size    8k;
        client_max_body_size            50m;
        client_header_timeout        1m;
        client_body_timeout                1m;
        large_client_header_buffers  8k;

        send_timeout        3m;

    sendfile        on;
    tcp_nopush     on;

    #keepalive_timeout  ;
    keepalive_timeout  ;
        tcp_nodelay                    on;

    gzip  on;
    gzip_min_length        1k;
    gzip_buffers             16k;
    gzip_http_version    1.1;
    gzip_comp_level        ;
    gzip_types    text/plain application/x-javascript text/css application/xml;
    gzip_vary on;

        upstream cctest1.com {
            server 127.0.0.1: weight=;
            server 127.0.0.1: weight=;
        }

        upstream cctest2.com {
            server 127.0.0.1:;
        }

    server {
        listen       ;
        server_name  ccserver1;

        #charset koi8-r;

        access_log  logs/host.access.log  main;

                index index.html index.htm index.jsp;
                root /usr/common/apache-tomcat-7.0.78_1/webapps/ROOT/;

                #location ~* ^/arch1/.*\.(jpg|jpeg|gif|png|swf|ico)$ {
                #    root /usr/common/apache-tomcat-7.0.78_1/webapps;
                #}

                #location ~* ^/arch1/.*\.(html|htm|js|css)$ {
                #    root /usr/common/apache-tomcat-7.0.78_1/webapps;
                #}

                #location ~* .*\.(jpg|jpeg|gif|png|swf|ico)$ {
                #    if (-f $request_filename) {
                #        #expires   15d;
                #        break;
                #    }
                #}

                #location ~* .*\.(html|htm|js|css)$ {
                #    if (-f $request_filename) {
                #        #expires   1d;
                #    }
                #}

        #location / {
        #        proxy_pass    http://cctest1.com;

        #}

        location / {
                proxy_pass    http://cctest2.com;

        }

        #error_page                /.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page        /50x.html;
        location = /50x.html {
            internal;
            root errors/html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }

    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       ;
    #    listen       somename:;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

    # HTTPS server
    #
    #server {
    #    listen        ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

varnish default.vcl文件

# This is a basic VCL configuration file for varnish.  See the vcl()
# man page for details on VCL syntax and semantics.
#
# Default backend definition.  Set this to point to your content
# server.
# 

import std;

 backend b1 {
     .host = "127.0.0.1";
     .port = "";
     .connect_timeout = 1s;
     .first_byte_timeout = 5s;
     .between_bytes_timeout = 2s;
     .max_connections=;
     .probe = { .url = "/index.jsp";
                                .timeout = 0.3 s;
                                .window = ; //要检查后端服务器的次数
                                .threshold = ; //.window里面要有多少polls成功就认为后端是健康的
                                .initial = ; //当varnish启动的时候，要确保多少个probe正常
                            }

 }

  backend b2 {
     .host = "127.0.0.1";
     .port = "";
     .connect_timeout = 1s;
     .first_byte_timeout = 5s;
     .between_bytes_timeout = 2s;
     .max_connections=;
     .probe = { .url = "/index.jsp";
                                .timeout = 0.3 s;
                                .window = ; //要检查后端服务器的次数
                                .threshold = ; //.window里面要有多少polls成功就认为后端是健康的
                                .initial = ; //当varnish启动的时候，要确保多少个probe正常
                            }

 }

 director d1 round-robin {

    {
        .backend = b1;//引用已经存在的backend

    } 

    {
        .backend = b2;

    }
}

 acl purgeallow {
      "127.0.0.1";
 }

 sub vcl_recv {

         set req.backend = d1;
         set req.grace    =50s;
         if (! req.backend.healthy) {
             set req.grace = 5m;
        } else {
            set req.grace = 15s;
        }

         if(req.request =="PURGE") {
             if(!client.ip ~ purgeallow){
                     error  "not allowed";
                 }
                 return(lookup);
         }

         if(req.request =="GET" && req.url ~ "\.(css|htm|html|js|jpg|png|gif|swf|flv|ico|jpeg)$"){
             unset req.http.cookie;
         }

     if (req.restarts == ) {
     if (req.http.x-forwarded-for) {
         set req.http.X-Forwarded-For =
         req.http.X-Forwarded-For + ", " + client.ip;
     } else {
         set req.http.X-Forwarded-For = client.ip;
     }
     }

     if( req.request =="GET" && ((req.url ~ "(?i).*/toLogin")||(req.url ~ "(?i).*/toIndex")||(req.url ~ "(?i).*/toGoodsDesc/.*"))){
             return (lookup);
         }

     if (req.request != "GET" &&
       req.request != "HEAD" &&
       req.request != "PUT" &&
       req.request != "POST" &&
       req.request != "TRACE" &&
       req.request != "OPTIONS" &&
       req.request != "DELETE") {
         /* Non-RFC2616 or CONNECT which is weird. */
         return (pipe);
     }
     if (req.request != "GET" && req.request != "HEAD") {
         /* We only deal with GET and HEAD by default */
         return (pass);
     }
     if (req.http.Authorization || req.http.Cookie) {
         /* Not cacheable by default */
         return (pass);
     }
     return (lookup);
 }
#
 sub vcl_pipe {
#     # Note that only the first request to the backend will have
#     # X-Forwarded-For set.  If you use X-Forwarded-For and want to
#     # have it set for all requests, make sure to have:
#     # set bereq.http.connection = "close";
#     # here.  It is not set by default as it might break some broken web
#     # applications, like IIS with NTLM authentication.
     return (pipe);
 }
#
 sub vcl_pass {
     return (pass);
 }
#
 sub vcl_hash {

     hash_data(req.url);
     std.log("url hash! the url=" + req.url);

     #if (req.http.host) {
     #    hash_data(req.http.host);
     #} else {
     #    hash_data(server.ip);
     #}
     return (hash);
 }
#
 sub vcl_hit {
     return (deliver);
 }
#
 sub vcl_miss {
     return (fetch);
 }
#
 sub vcl_fetch {

          set beresp.grace=30m;

          if(req.request =="GET" && req.url ~ "\.(css|html|htm|js|jpg|png|gif|swf|flv|ico|jpeg)$"){
                 set beresp.ttl =1d;
             }

         if(req.url ~ "(?i).*/toIndex"){
                 set beresp.ttl =3m;
                 return(deliver);
             }

           if((req.url ~ "(?i).*/toGoodsDesc/.*")||(req.url ~ "(?i).*/toLogin")){
                 set beresp.ttl =2h;
                 return(deliver);
             }

     if (beresp.ttl <= 0s ||
         beresp.http.Set-Cookie ||
         beresp.http.Vary == "*") {
#         /*
#          * Mark as "Hit-For-Pass" for the next 2 minutes
#          */
                 set beresp.ttl =  s;
                 return (hit_for_pass);
     }

     if( beresp.http.Pragma ~ "no-cache" ||
         beresp.http.Cache-Control ~ "no-cache" ||
         beresp.http.Cache-Control ~ "private" ){
             return(deliver);
         }

         if(beresp.status == || beresp.status ==){
             error ;
         }

     return (deliver);
 }

 sub vcl_deliver {

          if(obj.hits >){
                 set resp.http.X-Cache ="cached";
             }else{
                 set resp.http.X-Cache ="uncached";
             }

     return (deliver);
 }

 sub vcl_error {
     set obj.http.Content-Type = "text/html; charset=utf-8";
     set obj.http.Retry-After = "";
     synthetic {"
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 <html>
   <head>
     <title>"} + obj.status + " " + obj.response + {"</title>
   </head>
   <body>
     <h1>Error "} + obj.status + " " + obj.response + {"</h1>
     <p>"} + obj.response + {"</p>
     <h3>Guru Meditation:</h3>
     <p>XID: "} + req.xid + {"</p>
     <hr>
     <p>Varnish cache server</p>
   </body>
 </html>
 "};
     return (deliver);
 }
#
# sub vcl_init {
#     return (ok);
# }
#
# sub vcl_fini {
#     return (ok);
# }

基本性能测试

1、单独业务功能

./ab -n  -c   http://localhost:8080/arch1/toIndex

2、Nginx+Varnish+基本业务

./ab -n  -c   http://localhost:80/arch1/toIndex