怎么处理Varnish 动态输出？

V2EX = way to explore

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这是一个创建于 4010 天前的主题，其中的信息可能已经有所发展或是发生改变。

<?php
echo rand(1,99);
?>

输出的是43，之后输出的还是43，需要过1分钟左右再更新

怎么办？

输出

rand

6 条回复 • 1970-01-01 08:00:00 +08:00

Livid

MOD

2013-12-11 14:56:57 +08:00

试试加上这个？

header('Cache-Control: no-cache');

rails3

2013-12-11 15:06:20 +08:00

varnish 可以根据url或后缀判断是否缓存

h2sky

2013-12-11 15:31:09 +08:00

@Livid 没效果

@rails3 怎么设置？

rails3

2013-12-11 15:38:25 +08:00

@h2sky

backend default {
.host = "172.16.7.23";
.port = "9091";
}

sub vcl_recv {

if (req.request == "CACHEPURGE") {
ban("req.http.host == " + regsub(req.http.host, ":6081", "") + " && req.url == " + req.url);
error 200 "Ban added";
}

if (req.request == "CACHEPURGEDIRECTORY") {
ban("req.http.host == " + regsub(req.http.host, ":6081", "") + " && req.url ~ " + req.url);
error 200 "Ban added";
}

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.http.host ~ "(.*)domain.com") {
set req.backend = default;
}

if (req.http.host == "domain.com") {
set req.http.host = "www.domain.com";
}

if (req.url ~ "\.(jsp|action)$") {
return (pass);
}

if (req.url ~ "(.*)/(\?.*)?$") {
set req.url = regsub(req.url, "(.*)/(\?.*)?$", "\1/");
}

if (req.url ~ "\.html?.*") {
set req.url = regsub(req.url, "\.html?.*", "\.html");
}

if (req.url ~ "/index.html$") {
set req.url = regsub(req.url, "/index.html", "/");
}

if (req.http.Accept-Encoding) {
if (req.url ~ "\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|htm|html)$") {
remove req.http.Accept-Encoding;
unset req.http.Cookie;
unset req.http.Vary;
} 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 {
remove req.http.Accept-Encoding;
}
}

return (lookup);
}

sub vcl_pipe {
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 {
if (req.request == "CACHEPURGE" || req.request == "CACHEPURGEDIRECTORY") {
purge;
error 200 "Purged.";
}
return (deliver);
}

sub vcl_miss {
if (req.request == "CACHEPURGE" || req.request == "CACHEPURGEDIRECTORY") {
purge;
error 200 "Purged.";
}
return (fetch);
}

sub vcl_fetch {
if (beresp.ttl <= 0s ||
beresp.http.Set-Cookie ||
beresp.http.Vary == "*") {
set beresp.ttl = 120 s;
return (hit_for_pass);
}

if (beresp.status == 404 || beresp.status == 503 || beresp.status == 500 || beresp.status == 502) {
set beresp.http.X-Cacheable = "NO: beresp.status";
set beresp.http.X-Cacheable-status = beresp.status;
return (hit_for_pass);
}

if (req.url ~ "\.(html|htm)$") {
set beresp.do_gzip = true;
if (req.url ~ "/list_") {
set beresp.ttl = 600s;
} else {
set beresp.ttl = 8h;
}
} else if (req.url ~ "\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf)$") {
set beresp.ttl = 8h;
} else {
set beresp.ttl = 8h;
}

return (deliver);
}

sub vcl_deliver {
set resp.http.x-hits = obj.hits ;
if (obj.hits > 0) {
set resp.http.X-Cache = "HIT You!";
} else {
set resp.http.X-Cache = "MISS Me!";
}

remove resp.http.X-Varnish;
remove resp.http.Via;
remove resp.http.Age;
remove resp.http.Server;
remove resp.http.X-Powered-By;

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>kuakao cache server</p>
</body>
</html>
"};
return (deliver);
}

sub vcl_init {
return (ok);
}

sub vcl_fini {
return (ok);
}

rails3

2013-12-11 15:39:54 +08:00

@h2sky .jsp 或 .action 结尾的直接把请求发到后端处理。

Livid

MOD

2013-12-12 06:05:25 +08:00

嗯，看来是我天真了：

https://drupal.org/node/1418908