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varnish3.0安装及配置教程

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在内网的vps上安装Varnish的最新版3.0来用做测试  Varnish有centos下的rpm和ubuntu下的deb二进制包下载，但我选择的是源码编译安装  先下载 varnish-3.0.0.rar yum install gcc  yum install gcc-c++ libstdc++-devel  yum install -y httpd-devel pcre perl pcre-devel zlib zlib-devel GeoIP GeoIP-devel  Varnish需要pcre支持，如果服务器没有安装pcre-devel会提示需要指定prce目录。  Centos服务器上使用yum install pcre-devel安装  解压varnish进行编译安装  cd varnish-3.0.0  ./autogen.sh  ./configure --prefix=/usr/local/varnish PKG_CONFIG_PATH=/usr/lib/pkgconfig  make  make install  安装成功后,安装的目录是  cd /usr/local/varnish/sbin  ./varnishd -V  查看版本，看是否安装成功  测试varnish  先编辑配置文件  vi /usr/local/varnish/etc/varnish/default.vcl  。

复制代码 。

代码如下

# This is a basic VCL configuration file for varnish. See the vcl(7)  # man page for details on VCL syntax and semantics.  #  # Default backend definition. Set this to point to your content  # server.  #  backend default {  .host = "192.168.88.156";  .port = "80";  ###下面三行为新加配  .connect_timeout = 1s;  .first_byte_timeout = 5s;  .between_bytes_timeout = 2s;  }  #  # Below is a commented-out copy of the default VCL logic. If you  # redefine any of these subroutines, the built-in logic will be  # appended to your code.  sub vcl_recv {  if (req.restarts == 0) {  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.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);  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 {  if (beresp.ttl <= 0s ||  beresp.http.Set-Cookie ||  beresp.http.Vary == "*") {  /*  * Mark as "Hit-For-Pass" for the next 2 minutes  */  set beresp.ttl = 120 s;  return (hit_for_pass);  }  return (deliver);  }  #  sub vcl_deliver {  return (deliver);  }  #  # sub vcl_error {  # set obj.http.Content-Type = "text/html; charset=utf-8";  # set obj.http.Retry-After = "5";  # 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);  }  。

/usr/local/varnish/sbin/varnishd -f /usr/local/varnish/etc/varnish/default.vcl -s malloc,1024m -T 127.0.0.1:200 -a 0.0.0.0:80  现在可以打开varnish了  http://192.168.88.1/ (开启varnish的端口号)  戴图显示，nginx 为177上运行的web服务器，出现了varnish字样，表示缓存架设成功，已正常工作了。    启动varnishncsa用来将Varnish访问日志写入日志文件：  。

复制代码 。

代码如下

/usr/local/varnish/bin/varnishncsa -n /var/vcache -w /var/logs/varnish.log &  。

配置开机自动启动Varnish  。

复制代码 。

代码如下

vi /etc/rc.local  。

在末尾增加以下内容：  引用  ulimit -SHn 51200  /usr/local/varnish/sbin/varnishd -n /var/vcache -f /usr/local/varnish/vcl.conf -a 0.0.0.0:80 -s file,/var/vcache/varnish_cache.data,1G -g www -u www -w 30000,51200,10 -T 127.0.0.1:3500 -p client_http11=on  /usr/local/varnish/bin/varnishncsa -n /var/vcache -w /var/logs/youvideo.log &  优化Linux内核参数  。

复制代码 。

代码如下

vi /etc/sysctl.conf  。

在末尾增加以下内容：  引用  net.ipv4.tcp_fin_timeout = 30  net.ipv4.tcp_keepalive_time = 300  net.ipv4.tcp_syncookies = 1  net.ipv4.tcp_tw_reuse = 1  net.ipv4.tcp_tw_recycle = 1  net.ipv4.ip_local_port_range = 5000 65000  查看Varnish服务器连接数与命中率  /usr/local/varnish/bin/varnishstat  配置启动脚本：  mkdir /cache/varnish/V -p  vi /usr/local/varnish/sbin/start.sh  #!/bin/sh  #file:start.sh  date -u  /usr/local/varnish/sbin/varnishd -a 0.0.0.0:80 -s file,/cache/varnish/V,1024m -f /usr/local/varnish/etc/varnish/default.vcl -p thread_pool_max=1500 -p thread_pools=5 -p listen_depth=512  chmod 777 start.sh  运行：  /usr/local/varnish/sbin/start.sh 。

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