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POBrowser cache persists when using Varnish
 

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  1. POBrowser cache persists when using Varnish
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    <p>I think this seems related to Varnish. </p> <p>After I log out, user status should change. But it didn't. I have use "CTRL + F5" to force cache refreshing. </p> <p>So I am little confused. I forced refreshing of the browser cache or Varnish cache. </p> <p>If Varnish is caching the correct page ( user is not logged in), why didn't the browser display it, instead, it persists with the old page when the user still logged in.</p> <p>Any clue?</p> <blockquote> <p>VCL</p> </blockquote> <pre><code>backend testserver { .host = "127.0.0.1"; .port = "8080"; } acl purge { "localhost"; "127.0.0.1"; "192.168.3.0"/24; } sub vcl_recv { if (req.request == "PURGE") { if (!client.ip ~ purge) { error 405 "Not allowed."; } return(lookup); } remove req.http.X-Forwarded-For; set req.http.X-Forwarded-For = client.ip; // Remove has_js and Google Analytics cookies set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(_[_a-z]+|has_js)=[^;]*",""); // remove a ";" prefix, if present set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", ""); // remove empty cookies. if (req.http.Cookie ~ "^\s*$") { unset req.http.Cookie; } // Skip the Vanish cache for install, update, and cron if (req.url ~ "install\.php|update\.php|cron\.php") { return (pass); } # Normalize Accept-Encoding to get better cache coherency if (req.http.Accept-Encoding) { # No point in compressing media that is already compressed if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg)$") { remove req.http.Accept-Encoding; # MSIE 6 JS bug workaround } elsif(req.http.User-Agent ~ "MSIE 6") { unset 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; } } # ... other vcl_recv rules here ... # Don't serve cached content to logged-in users # Don't cache Drupal logged-in user sessions # LOGGED_IN is the cookie that earlier version of Pressflow sets # VARNISH is the cookie which the varnish.module sets if (req.http.Cookie ~ "(VARNISH|DRUPAL_UID|LOGGED_IN)") { return (pass); } // Let's have a little grace // When backend cannot generate refreshed content // this time will allow expired content to stay longer in grace set req.grace = 0s; if (req.http.host ~ "^www.test.com") { set req.backend = testserver; if (req.request != "GET" &amp;&amp; req.request != "HEAD") { return(pipe); } else { return(lookup); } }elsif (req.http.host ~ "^www.test2.com") { set req.backend = testserver; if (req.request != "GET" &amp;&amp; req.request != "HEAD") { return(pipe); } else { return(lookup); } } else { error 404 "test Cache Server IS Out of Order"; return(lookup); } # Drupal js/css doesn't need cookies, cache them if (req.url ~ "^/modules/.*\.(js|css)\?") { unset req.http.Cookie; } ## Pass cron jobs and server-status if (req.url ~ "cron.php") { return (pass); } if (req.url ~ ".*/server-status$") { return (pass); } } sub vcl_hit { if (req.request == "PURGE") { set obj.ttl = 0s; error 200 "Purged."; } } sub vcl_miss { if (req.request == "PURGE") { error 404 "Not in cache."; } } sub vcl_fetch { if (req.url ~ "\.(png|gif|jpg|swf|css|js)$") { unset beresp.http.set-cookie; } #if (beresp.http.Pragma ~ "nocache") { # return(pass); #} if (req.request == "GET" &amp;&amp; req.url ~ "\.(txt|js)$") { set beresp.ttl = 3600s; } else { set beresp.ttl = 30d; } } sub vcl_error { set obj.http.Content-Type = "text/html; charset=utf-8"; set obj.http.Retry-After = "5"; synthetic {"&lt;?xml version="1.0" encoding="utf-8"?&gt;&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"&gt;&lt;html&gt;&lt;head&gt;&lt;title&gt;"} obj.status " " obj.response {"&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;h1&gt;Error "} obj.status " " obj.response {"&lt;/h1&gt;&lt;p&gt;"} obj.response {"&lt;/p&gt;&lt;h3&gt;Guru Meditation:&lt;/h3&gt;&lt;p&gt;XID: "} req.xid {"&lt;/p&gt;&lt;hr&gt;&lt;p&gt;Varnish cache server&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;"}; return (deliver); } sub vcl_pipe { # http://www.varnish-cache.org/ticket/451 # This forces every pipe request to be the first one. set bereq.http.connection = "close"; } </code></pre> <blockquote> <p>Headers</p> </blockquote> <p><strong>After Log In</strong></p> <pre><code>Response Headers view source Cache-Control store, no-cache, must-revalidate, post-check=0, pre-check=0 Connection close Content-Type text/html; charset=utf-8 Date Tue, 21 Feb 2012 04:09:09 GMT Expires Sun, 11 Mar 1984 12:00:00 GMT Last-Modified Tue, 21 Feb 2012 04:09:07 GMT Location http://www.test.com/frontpage_empty Server nginx/1.0.0 Set-Cookie SESSe3202baa92dbab78a8d1785ee17b05a0=deleted; expires=Mon, 21-Feb-2011 04:09:08 GMT; path=/ SESSe3202baa92dbab78a8d1785ee17b05a0=67d001b0720c9f5a74e5b671fae74d76; expires=Fri, 09-Mar-2012 12:49:09 GMT; path=/; domain=.test.com LOGGED_IN=Y; expires=Fri, 09-Mar-2012 12:49:07 GMT; path=/ Transfer-Encoding chunked X-Powered-By PHP/5.2.17 Request Headers view source Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding gzip, deflate Accept-Language en-us,en;q=0.5 Authorization Basic amFtZXM6MTIzMTIz Connection keep-alive Cookie OAID=e171ed7b31967c95a09c70646433d7b1; has_js=1; SESSe3202baa92dbab78a8d1785ee17b05a0=054b6fa52ce9009198a2160800d04456; __utma=256091342.2121990614.1327109315.1329792135.1329797585.41; __utmz=256091342.1327109315.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); OAID=e171ed7b31967c95a09c70646433d7b1; SESSa395c7767e83fe1b8cd4bf8229e072c3=2bfb1adba208cf29bf17921ce9946bd5; has_js=1; __utmc=256091342; __utmb=256091342.1.10.1329797585 Host www.test.com Referer http://www.test.com/user/login?destination=frontpage_empty User-Agent Mozilla/5.0 (Windows NT 5.1; rv:10.0.2) Gecko/20100101 Firefox/10.0.2 Response Headers From Cache Cache-Control store, no-cache, must-revalidate, post-check=0, pre-check=0 Connection close Content-Type text/html; charset=utf-8 Date Tue, 21 Feb 2012 04:09:09 GMT Expires Sun, 11 Mar 1984 12:00:00 GMT Last-Modified Tue, 21 Feb 2012 04:09:07 GMT Location http://www.test.com/frontpage_empty Server nginx/1.0.0 Set-Cookie SESSe3202baa92dbab78a8d1785ee17b05a0=deleted; expires=Mon, 21-Feb-2011 04:09:08 GMT; path=/ SESSe3202baa92dbab78a8d1785ee17b05a0=67d001b0720c9f5a74e5b671fae74d76; expires=Fri, 09-Mar-2012 12:49:09 GMT; path=/; domain=.test.com LOGGED_IN=Y; expires=Fri, 09-Mar-2012 12:49:07 GMT; path=/ Transfer-Encoding chunked X-Powered-By PHP/5.2.17 Request Headers From Upload Stream Content-Length 61 Content-Type application/x-www-form-urlencoded </code></pre> <p><strong>After log out</strong></p> <pre><code>Response Headers view source Cache-Control store, no-cache, must-revalidate, post-check=0, pre-check=0 Connection close Content-Type text/html; charset=utf-8 Date Tue, 21 Feb 2012 09:10:29 GMT Expires Sun, 11 Mar 1984 12:00:00 GMT Last-Modified Tue, 21 Feb 2012 09:10:27 GMT Location http://www.test.com/ Server nginx/1.0.0 Set-Cookie LOGGED_IN=deleted; expires=Mon, 21-Feb-2011 09:10:28 GMT; path=/ Transfer-Encoding chunked X-Powered-By PHP/5.2.17 Request Headers view source Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding gzip, deflate Accept-Language en-us,en;q=0.5 Authorization Basic amFtZXM6MTIzMTIz Connection keep-alive Cookie SESSe3202baa92dbab78a8d1785ee17b05a0=67d001b0720c9f5a74e5b671fae74d76; __utma=256091342.2121990614.1327109315.1329792135.1329797585.41; __utmz=256091342.1327109315.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); OAID=e171ed7b31967c95a09c70646433d7b1; SESSa395c7767e83fe1b8cd4bf8229e072c3=2bfb1adba208cf29bf17921ce9946bd5; has_js=1; __utmc=256091342; LOGGED_IN=Y Host www.test.com If-Modified-Since Tue, 21 Feb 2012 03:32:36 GMT Referer http://www.test.com/ User-Agent Mozilla/5.0 (Windows NT 5.1; rv:10.0.2) Gecko/20100101 Firefox/10.0.2 </code></pre>
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    1. COCould you please post your request and response headers as well as your VCL file ?
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    2. COVCL and headers added
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