配置 varnish 和 django (apache/modwsgi)

我試圖弄清楚為什麼我的應用程序在我在 apache 前面設置清漆時不斷訪問數據庫。我想我缺少一些重要的配置，歡迎任何提示

這是我的捲曲結果：

HTTP/1.1 200 OK
Server: Apache/2.2.16 (Debian)
Content-Language: en-us
Vary: Accept,Accept-Encoding,Accept-Language,Cookie
Cache-Control: s-maxage=60, no-transform, max-age=60
Content-Type: application/json; charset=utf-8
Date: Sat, 15 Sep 2012 08:19:17 GMT
Connection: keep-alive

我的清漆日誌：

  13 BackendClose - apache
  13 BackendOpen  b apache 127.0.0.1 47665 127.0.0.1 8000
  13 TxRequest    b GET
  13 TxURL        b /api/v1/events/?format=json
  13 TxProtocol   b HTTP/1.1
  13 TxHeader     b User-Agent: curl/7.19.7 (universal-apple-darwin10.0) libcurl/7.19.7 OpenSSL/0.9.8r zlib/1.2.3
  13 TxHeader     b Host: foobar.com
  13 TxHeader     b Accept: */*
  13 TxHeader     b X-Forwarded-For: 92.64.200.145
  13 TxHeader     b X-Varnish: 979305817
  13 TxHeader     b Accept-Encoding: gzip
  13 RxProtocol   b HTTP/1.1
  13 RxStatus     b 200
  13 RxResponse   b OK
  13 RxHeader     b Date: Sat, 15 Sep 2012 08:21:28 GMT
  13 RxHeader     b Server: Apache/2.2.16 (Debian)
  13 RxHeader     b Content-Language: en-us
  13 RxHeader     b Content-Encoding: gzip
  13 RxHeader     b Vary: Accept,Accept-Encoding,Accept-Language,Cookie
  13 RxHeader     b Cache-Control: s-maxage=60, no-transform, max-age=60
  13 RxHeader     b Content-Length: 6399
  13 RxHeader     b Content-Type: application/json; charset=utf-8
  13 Fetch_Body   b 4(length) cls 0 mklen 1
  13 Length       b 6399
  13 BackendReuse b apache
  11 SessionOpen  c 92.64.200.145 53236 :80
  11 ReqStart     c 92.64.200.145 53236 979305817
  11 RxRequest    c HEAD
  11 RxURL        c /api/v1/events/?format=json
  11 RxProtocol   c HTTP/1.1
  11 RxHeader     c User-Agent: curl/7.19.7 (universal-apple-darwin10.0) libcurl/7.19.7 OpenSSL/0.9.8r zlib/1.2.3
  11 RxHeader     c Host: foobar.com
  11 RxHeader     c Accept: */*
  11 VCL_call     c recv lookup
  11 VCL_call     c hash
  11 Hash         c /api/v1/events/?format=json
  11 Hash         c foobar.com
  11 VCL_return   c hash
  11 VCL_call     c miss fetch
  11 Backend      c 13 apache apache
  11 TTL          c 979305817 RFC 60 -1 -1 1347697289 0 1347697288 0 60
  11 VCL_call     c fetch deliver
  11 ObjProtocol  c HTTP/1.1
  11 ObjResponse  c OK
  11 ObjHeader    c Date: Sat, 15 Sep 2012 08:21:28 GMT
  11 ObjHeader    c Server: Apache/2.2.16 (Debian)
  11 ObjHeader    c Content-Language: en-us
  11 ObjHeader    c Content-Encoding: gzip
  11 ObjHeader    c Vary: Accept,Accept-Encoding,Accept-Language,Cookie
  11 ObjHeader    c Cache-Control: s-maxage=60, no-transform, max-age=60
  11 ObjHeader    c Content-Type: application/json; charset=utf-8
  11 Gzip         c u F - 6399 69865 80 80 51128
  11 VCL_call     c deliver deliver
  11 TxProtocol   c HTTP/1.1
  11 TxStatus     c 200
  11 TxResponse   c OK
  11 TxHeader     c Server: Apache/2.2.16 (Debian)
  11 TxHeader     c Content-Language: en-us
  11 TxHeader     c Vary: Accept,Accept-Encoding,Accept-Language,Cookie
  11 TxHeader     c Cache-Control: s-maxage=60, no-transform, max-age=60
  11 TxHeader     c Content-Type: application/json; charset=utf-8
  11 TxHeader     c Date: Sat, 15 Sep 2012 08:21:29 GMT
  11 TxHeader     c Connection: keep-alive
  11 Length       c 0
  11 ReqEnd       c 979305817 1347697288.292612076 1347697289.456128597 0.000086784 1.163468122 0.000048399

清漆配置

## Redirect requests to Apache, running on port 8000 on localhost
backend apache {
       .host = "127.0.0.1";
       .port = "8000";
}
## Receive
sub vcl_recv {
       if (req.url ~ "^/api") {
               set req.http.host = "foobar.com";
               set req.backend = apache;
       } else {
               set req.backend = apache;
       }
       remove req.http.Cookie;
       return( lookup );
}

## Fetch
sub vcl_fetch {
       ## Remove the X-Forwarded-For header if it exists.
       remove req.http.X-Forwarded-For;

       ## insert the client IP address as X-Forwarded-For. This is the normal IP address of the user.
       set    req.http.X-Forwarded-For = req.http.rlnclientipaddr;
       ## Added security, the "w00tw00t" attacks are pretty annoying so lets block it before it reaches our webserver
       if (req.url ~ "^/w00tw00t") {
               error 403 "Not permitted";
       }

       if(req.http.host == "foorbar.com") {
               ## force 1 day cache on any requests
               set beresp.ttl = 86400s;
               ## if clients will check for an update every hour, this will just come from varnish
               set beresp.http.Cache-Control = "max-age=3600";
       }

       ## Deliver the content
       return(deliver);
}

## Deliver
sub vcl_deliver {
       ## We'll be hiding some headers added by Varnish. We want to make sure people are not seeing we're using Varnish.
       ## Since we're not caching (yet), why bother telling people we use it?
       remove resp.http.X-Varnish;
       remove resp.http.Via;
       remove resp.http.Age;

       ## We'd like to hide the X-Powered-By headers. Nobody has to know we can run PHP and have version xyz of it.
       remove resp.http.X-Powered-By;
}

然後把它放在一個答案中：

您的配置看起來不錯，您需要使用 varnishadm 或僅通過重新啟動 varnish 來載入它。使用 varnishadm 的 vcl.load 和 vcl.use 你可以在不失去記憶體的情況下重新載入它：

$ varnishadm -T localhost:6081

vcl.load update1 /etc/varnish/default.vcl
vcl.use update1

引用自：https://serverfault.com/questions/427682