带有 Nginx 和 Varnish 的 Magento - 302、cookie 和重定向？

Question

我正在测试 Varnish 以增加 Magento 的加载时间，到目前为止缓存效果很好。我可以为 index.php 提供 32-35 页/秒的服务，而对于目录页面，最高可达 1200 页/秒。但是，我遇到了一个我正在努力解决的问题。这几天我一直在努力解决这个问题。将产品添加到购物车时，它会重定向到主页，然后显示“商品 XXX 已添加到您的购物车”。我可以看到 Varnish 得到 302 将它返回到我添加项目的页面，但它总是退回到主页。添加用于比较的产品时存在同样的问题，但这永远不会添加到要比较的项目列表中。

你可以在这里看到这个网站:
http://test.autoracks.com

这是我的 default.vcl:

        # default backend definition.  Set this to point to your content server.
        backend default {
          .host = "127.0.0.1";
          .port = "8080";
        }

        # admin backend with longer timeout values. Set this to the same IP & port as your default server.
        backend admin {
          .host = "127.0.0.1";
          .port = "8080";
          .first_byte_timeout = 18000s;
          .between_bytes_timeout = 18000s;
        }


        # add your Magento server IP to allow purges from the backend
        acl purge {
          "localhost";
          "127.0.0.1";
        }


        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" &&
              req.request != "PURGE") {
                /* Non-RFC2616 or CONNECT which is weird. */
                return (pipe);
            }

            # purge request
            if (req.request == "PURGE") {
                if (!client.ip ~ purge) {
                    error 405 "Not allowed.";
                }
                purge("obj.http.X-Purge-Host ~ " req.http.X-Purge-Host " && obj.http.X-Purge-URL ~ " req.http.X-Purge-Regex " && obj.http.Content-Type ~ " req.http.X-Purge-Content-Type);
                error 200 "Purged.";
            }



            # switch to admin backend configuration
            if (req.http.cookie ~ "adminhtml=") {
                set req.backend = admin;
            }

            # we only deal with GET and HEAD by default    
            if (req.request != "GET" && req.request != "HEAD") {
                return (pass);
            }

            # normalize url in case of leading HTTP scheme and domain
            set req.url = regsub(req.url, "^http[s]?://[^/]+", "");

            # static files are always cacheable. remove SSL flag and cookie
            if (req.url ~ "^/(media|js|skin)/.*\.(png|jpg|jpeg|gif|css|js|swf|ico)$") {
                unset req.http.Https;
                unset req.http.Cookie;
            }

            # not cacheable by default
            if (req.http.Authorization || req.http.Https) {
                return (pass);
            }

            # do not cache any page from
            # - index files
            # - ...
            #if (req.url ~ "^/(index)") {
            #    return (pass);
            #}

            # as soon as we have a NO_CACHE cookie pass request
            if (req.http.cookie ~ "NO_CACHE=") {
                return (pass);
            }

            # normalize Aceept-Encoding header
            # http://varnish.projects.linpro.no/wiki/FAQ/Compression
            if (req.http.Accept-Encoding) {
                if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|swf|flv)$") {
                    # 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" && req.http.user-agent !~ "MSIE") {
                    set req.http.Accept-Encoding = "deflate";
                } else {
                    # unkown algorithm
                    remove req.http.Accept-Encoding;
                }
            }

            # remove Google gclid parameters
            set req.url = regsuball(req.url,"\?gclid=[^&]+$",""); # strips when QS = "?gclid=AAA"
            set req.url = regsuball(req.url,"\?gclid=[^&]+&","?"); # strips when QS = "?gclid=AAA&foo=bar"
            set req.url = regsuball(req.url,"&gclid=[^&]+",""); # strips when QS = "?foo=bar&gclid=AAA" or QS = "?foo=bar&gclid=AAA&bar=baz"

            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 {
            set req.hash += req.url;
            if (req.http.host) {
                 set req.hash += req.http.host;
            } else {
                set req.hash += server.ip;
            }
            if (!(req.url ~ "^/(media|js|skin)/.*\.(png|jpg|jpeg|gif|css|js|swf|ico)$")) {
                call design_exception;
            }
            return (hash);
        }
        # 
        # sub vcl_hit {
        #     if (!obj.cacheable) {
        #         return (pass);
        #     }
        #     return (deliver);
        # }
        # 
        # sub vcl_miss {
        #     return (fetch);
        # }

        sub vcl_fetch {
            if (beresp.status == 500) {
               set beresp.saintmode = 10s;
               restart;
            }
            set beresp.grace = 5m;

            # add ban-lurker tags to object
            set beresp.http.X-Purge-URL = req.url;
            set beresp.http.X-Purge-Host = req.http.host;

            if (beresp.status == 200 || beresp.status == 301 || beresp.status == 404) {
                if (beresp.http.Content-Type ~ "text/html" || beresp.http.Content-Type ~ "text/xml") {
                    if ((beresp.http.Set-Cookie ~ "NO_CACHE=") || (beresp.ttl < 1s)) {
                        set beresp.ttl = 0s;
                        return (pass);
                    }

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

                    # Don't cache cookies
                    unset beresp.http.set-cookie;
                } else {
                    # set default TTL value for static content
                    set beresp.ttl = 4h;
                }
                return (deliver);
            }

            return (pass);
        }

        sub vcl_deliver {
            # debug info
            if (resp.http.X-Cache-Debug) {
                if (obj.hits > 0) {
                    set resp.http.X-Cache = "HIT";
                    set resp.http.X-Cache-Hits = obj.hits;
                } else {
                   set resp.http.X-Cache = "MISS";
                }
                set resp.http.X-Cache-Expires = resp.http.Expires;
            } else {
                # remove Varnish/proxy header
                remove resp.http.X-Varnish;
                remove resp.http.Via;
                remove resp.http.Age;
                remove resp.http.X-Purge-URL;
                remove resp.http.X-Purge-Host;
            }

            if (resp.http.magicmarker) {
                # Remove the magic marker
                unset resp.http.magicmarker;

                set resp.http.Cache-Control = "no-store, no-cache, must-revalidate, post-check=0, pre-check=0";
                set resp.http.Pragma = "no-cache";
                set resp.http.Expires = "Mon, 31 Mar 2008 10:00:00 GMT";
                set resp.http.Age = "0";
            }
        }

        # sub vcl_error {
        #     set obj.http.Content-Type = "text/html; charset=utf-8";
        #     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 design_exception {
        }

如果我把 nginx 放在前面，我应该一切正常。
对此的任何帮助将不胜感激，我真的很想让它工作!

谢谢...

Answer 1

此问题位于 Magento Core 中。如方法getCurrentUrl使用 Nginx 端口号构建 URL(在 Varnish 后面时通常不是 80)。稍后当重定向 URL 被解码时，由于端口号，它作为“内部 URL”失败。

解决方案(不修改 Magento 核心)是将 Nginx 设置为监听端口 80，将 Varnish 设置为其他端口。然后使用 iptables 将传入流量映射到 Varnish。

我在 Keeping Magento satisfied behind Varnish 上的博客文章中对此进行了介绍。 .