光油一直缺少缓存,Cookie?(Varnish keeps missing cache ,cook

2019-06-23 17:01发布

我有一点麻烦清漆正确缓存。

当我去到一个页面,点击刷新,清漆会返回缓存页面。 但是,如果使用另一台计算机,并再次打同一页面(缓存时间范围内),它会报告一个MISS。

我用的cPanel清漆插件从http://www.unixy.net/varnish
我删除的session_start()从我的(PHP)网页,我并不需要基于用户的cookie。
我也使用谷歌分析。

这是我的default.vcl

###################################################
# Copyright (c) UNIXY  -  http://www.unixy.net    #
# The leading truly fully managed server provider #
###################################################

include "/etc/varnish/cpanel.backend.vcl";

include "/etc/varnish/backends.vcl";

sub vcl_recv {

# Use the default backend for all other requests
set req.backend = default;

# Setup the different backends logic
include "/etc/varnish/acllogic.vcl";

# Allow a grace period for offering "stale" data in case backend lags
set req.grace = 5m;

remove req.http.X-Forwarded-For;
set req.http.X-Forwarded-For = client.ip;

# cPanel URLs
include "/etc/varnish/cpanel.url.vcl";

# Properly handle different encoding types
if (req.http.Accept-Encoding) {
    if (req.url ~ "\.(jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|swf|ico)$") {
        # No point in compressing these
        remove req.http.Accept-Encoding;
    } elsif (req.http.Accept-Encoding ~ "gzip") {
        set req.http.Accept-Encoding = "gzip";
    } elsif (req.http.Accept-Encoding ~ "deflate") {
        set req.http.Accept-Encoding = "deflate";
    } else {
        # unkown algorithm
        remove req.http.Accept-Encoding;
    }
}

# Set up disabled
include "/etc/varnish/disabled.vcl";

# Exclude upgrade, install, server-status, etc
include "/etc/varnish/known.exclude.vcl";

# Set up exceptions
include "/etc/varnish/url.exclude.vcl";

# Set up exceptions
include "/etc/varnish/vhost.exclude.vcl";

# Set up vhost+url exceptions
include "/etc/varnish/vhosturl.exclude.vcl";

# Set up cPanel reseller exceptions
include "/etc/varnish/reseller.exclude.vcl";

# Restart rule for bfile recv
include "/etc/varnish/bigfile.recv.vcl";


if (req.request == "PURGE") {
        if (!client.ip ~ acl127_0_0_1) {error 405 "Not permitted";}
        return (lookup);
}

## Default request checks
if (req.request != "GET" &&
req.request != "HEAD" &&
req.request != "PUT" &&
req.request != "POST" &&
req.request != "TRACE" &&
req.request != "OPTIONS" &&
req.request != "DELETE") {
    return (pipe);
}

if (req.request != "GET" && req.request != "HEAD") {
    return (pass);
}

## Modified from default to allow caching if cookies are set, but not http auth
if (req.http.Authorization) {
    return (pass);
}

include "/etc/varnish/versioning.static.vcl";

## Remove has_js and Google Analytics cookies.
set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(__[a-z]+|has_js)=[^;]*", "");

set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");



if (req.http.Cookie ~ "^\s*$") {
    unset req.http.Cookie;
}

include "/etc/varnish/slashdot.recv.vcl";

# Cache things with these extensions
if (req.url ~ "\.(js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|swf|pdf)$" && ! (req.url ~ "\.(php)") ) {
    unset req.http.Cookie;
    return (lookup);
}

return (lookup);
}

sub vcl_fetch {

set beresp.ttl = 40s;
set beresp.http.Server = " - Web acceleration by http://www.unixy.net/varnish ";

# Turn off Varnish gzip processing
include "/etc/varnish/gzip.off.vcl";

# Grace to allow varnish to serve content if backend is lagged
set beresp.grace = 5m;

# Restart rule bfile for fetch
include "/etc/varnish/bigfile.fetch.vcl";

# These status codes should always pass through and never cache.
if (beresp.status == 503 || beresp.status == 500) {
    set beresp.http.X-Cacheable = "NO: beresp.status";
    set beresp.http.X-Cacheable-status = beresp.status;
    return (hit_for_pass);
}

if (beresp.status == 404) {
    set beresp.http.magicmarker = "1";
    set beresp.http.X-Cacheable = "YES";
    set beresp.ttl = 20s;
    return (deliver);
}

/* Remove Expires from backend, it's not long enough */    
unset beresp.http.expires;

if (req.url ~ "\.(js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|swf|pdf|ico)$" && ! (req.url ~ "\.(php)") ) {
    unset beresp.http.set-cookie;
    include "/etc/varnish/static.ttl.vcl";
}
include "/etc/varnish/slashdot.fetch.vcl"; 
else {
    include "/etc/varnish/dynamic.ttl.vcl";
}

/* marker for vcl_deliver to reset Age: */
set beresp.http.magicmarker = "1";

# All tests passed, therefore item is cacheable
set beresp.http.X-Cacheable = "YES";

return (deliver);
}

sub vcl_deliver {

  # From http://varnish-cache.org/wiki/VCLExampleLongerCaching
  if (resp.http.magicmarker) {
     /* Remove the magic marker */
     unset resp.http.magicmarker;

     /* By definition we have a fresh object */
     set resp.http.age = "0";
   }

   #add cache hit data
   if (obj.hits > 0) {
     #if hit add hit count
     set resp.http.X-Cache = "HIT";
     set resp.http.X-Cache-Hits = obj.hits;
   }
else {
     set resp.http.X-Cache = "MISS";
   }

}

sub vcl_error {

if (obj.status == 503 && req.restarts < 5) {
set obj.http.X-Restarts = req.restarts;
return (restart);
}

}

# Added to let users force refresh
sub vcl_hit {

if (obj.ttl < 1s) {
    return (pass);
}

if (req.http.Cache-Control ~ "no-cache") {
# Ignore requests via proxy caches,  IE users and badly behaved crawlers
# like msnbot that send no-cache with every request.
if (! (req.http.Via || req.http.User-Agent ~ "bot|MSIE|HostTracker")) {
    set obj.ttl = 0s;
    return (restart);
} 
}

return (deliver);

}

sub vcl_hash {

    hash_data(req.http.cookie);
}

我的头文件(第二台计算机上):

http://www.subtitleseeker.com/

GET / HTTP/1.1
Host: www.subtitleseeker.com
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:11.0) Gecko/20100101 Firefox/11.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Referer: http://www.subtitleseeker.com/search/
Cookie: __utma=107027200.157820436.1334670333.1334670333.1334670333.1; __utmb=107027200.51.10.1334670333; __utmz=107027200.1334670333.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utmc=107027200; __unam=4ca9c7b-136c095f22c-1396bc94-1

HTTP/1.1 200 OK
X-Powered-By: PHP/5.3.8
Vary: User-Agent,Accept-Encoding
Content-Encoding: gzip
Content-Type: text/html
Server: - Web acceleration by http://www.unixy.net/varnish
X-Cacheable: YES
Content-Length: 8169
Accept-Ranges: bytes
Date: Tue, 17 Apr 2012 14:10:12 GMT
X-Varnish: 916645159
Via: 1.1 varnish
Connection: keep-alive
Age: 0
X-Cache: MISS

谁能给我解释一下这是为什么发生,我应该改变?

谢谢 !

Answer 1:

这是因为谷歌分析。 即使你的Web应用程序不使用cookies您的分析JavaScript并。 其结果是一样的,光油将请求传递给后端,并避免使用它的缓存。

为了解决这个问题定义,你必须使用Cookie(如管理面板)Web应用程序的URL,并在那里你不这样做(在这里,你可以忽略谷歌Analytics(分析)的要求。大多数Web分析工具只需要在浏览器和JavaScript之间的饼干)。

下面你可以看到这个清漆配置文件的一个例子。 有趣的是,对于你的网站的非行政部分:发送的cookie将被作为新的内容有些浏览器请求头以及删除。

sub vcl_recv {
  # regex to find all URLs where cookies are required
  if (req.url ~ "^/admin/") {
    # administration panel
    set req.http.admin = 1;
  } else {
    # public web site, ignore client request for fresh content, remove cookies
    unset req.http.Cache-Control;
    unset req.http.Max-Age;
    unset req.http.Pragma;
    unset req.http.Cookie;
  }
  ...
}

sub vcl_fetch {
  if (req.http.admin == 1) {
    # administration panel
    return (hit_for_pass);
  } else {
    # public web site, not allowed to set cookies
    unset beresp.http.Set-Cookie;
    ...
  }
  ...
}


Answer 2:

您可以使用varnishlog命令行工具看什么光油做,因为它处理每个请求。 你可以看到,如果任何饼干例如通过分裂。

我感觉它可以是用户代理是在其他计算机上略有不同。 光油包括在关键的这个值,如果它是知道的。 我们已经在我们的规则vcl_recv是:

set req.http.User-Agent = "";

其中固定资产类似的问题我们。



文章来源: Varnish keeps missing cache ,cookies?
标签: php varnish