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varnish3.0安装及配置教程

程序员文章站 2022-04-03 20:24:35
本文将详细介绍varnish3.0安装及配置，现在内网的vps上安装Varnish的最新版3.0来用做测试... 12-11-28...
varnish3.0安装及配置教程
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 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。
varnish3.0安装及配置教程 
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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