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 !