The output from below is a result of 'varnishlog > log.file'. According to the man page if I don't use '-b' or '-c' both are assumed..so I don't know why any of the logging would be missing? Am I missing somthing? In terms of the 'different Accept-Encoding header ' being set by the other browser..do you mean the 'Vary' header? The reason I ask is because both set Accept-Encoding to 'gzip:deflate' so they are the same there. If it is the result of 'Vary' can I simply remove that header and achive what I am looking for? I would also like to know if anyone knows how I can better debug the hash that is being created...ie...I would like you know exaclty what information is being used in it's creation, so I can get to a plcae really where only the url is being used as the hash...that way it will match on any machine, from any browser, as long as the url has been cached. I know that the vcl.conf file that I provided has a lot of redundant info in it...but I was trying to make sure it does a lookup and insert no matter what and I wanted to be sure that no case would be missed...cause it is still not working for me. Thanks again for taking time to help me,
Shain ________________________________ From: Dag-Erling Smørgrav [mailto:[EMAIL PROTECTED] Sent: Sun 3/9/2008 5:49 AM To: Shain Miley Cc: Adrian Otto; varnish-dev@projects.linpro.no Subject: Re: Caching issue "Shain Miley" <[EMAIL PROTECTED]> writes: > First the cache hit: > > 12 SessionOpen c 172.1.1.1 3203 > 12 ReqStart c 172.1.1.1 3203 42332617 > 12 RxRequest c GET > 12 RxURL c /templates/topics/topic.php?topicId=1006 > 12 RxProtocol c HTTP/1.1 > 12 RxHeader c Host: server11.npr.org:8080 > 12 RxHeader c User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; > en-US; rv:1.8.1.12) Gecko/20080201 Firefox/2.0.0.12 > 12 RxHeader c Accept: > text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=$ > 12 RxHeader c Accept-Language: en-us,en;q=0.5 > 12 RxHeader c Accept-Encoding: gzip,deflate > 12 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 > 12 RxHeader c Keep-Alive: 300 > 12 RxHeader c Connection: keep-alive > 12 RxHeader c Cookie: v1st=7ED84E9096FDA5B; > GUID=0003D141E48D07D140F1C40561626364 > 12 RxHeader c If-None-Match: "jpd--899294354.37421" > 12 VCL_call c recv > 12 VCL_return c lookup > 12 VCL_call c hash > 12 VCL_return c hash > 12 Hit c 42332555 > 12 VCL_call c hit > 12 VCL_return c deliver > 12 Length c 9137 > 12 VCL_call c deliver > 12 VCL_return c deliver > 12 TxProtocol c HTTP/1.1 > 12 TxStatus c 200 > 12 TxResponse c OK > 12 TxHeader c Server: Apache > 12 TxHeader c X-Powered-By: PHP/5.2.3 > 12 TxHeader c X-Cache: jpcache vv2 - npr-burn > 12 TxHeader c ETag: "jpd--899294354.37421" > 12 TxHeader c Cache-Control: max-age=0 > 12 TxHeader c Expires: Sat, 08 Mar 2008 22:41:22 GMT > 12 TxHeader c Vary: Accept-Encoding > 12 TxHeader c Content-Encoding: gzip > 12 TxHeader c Content-Encoding: gzip > 12 TxHeader c Content-Type: text/html > 12 TxHeader c Content-Length: 9137 > 12 TxHeader c Date: Sat, 08 Mar 2008 22:43:05 GMT > 12 TxHeader c X-Varnish: 42332617 42332555 > 12 TxHeader c Age: 102 > 12 TxHeader c Via: 1.1 varnish > 12 TxHeader c Connection: keep-alive > 12 ReqEnd c 42332617 1205016185.289316893 1205016185.289417028 > 0.006116867 0.000038147 0.000061989 Where is the backend traffic? Please use both -b and -c. > Now the cache miss: > > 12 SessionOpen c 172.1.1.1 3211 > 12 ReqStart c 172.1.1.1 3211 42332632 > 12 RxRequest c GET > 12 RxURL c /templates/topics/topic.php?topicId=1006 > 12 RxProtocol c HTTP/1.1 > 12 RxHeader c Accept: */* > 12 RxHeader c Accept-Language: en-us > 12 RxHeader c Accept-Encoding: gzip, deflate > 12 RxHeader c User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows > NT 5.1; SV1; .NET CLR 2.0.50727) > 12 RxHeader c Host: server11.npr.org:8080 > 12 RxHeader c Connection: Keep-Alive > 12 RxHeader c Cookie: v1st=2E524136463554A; > GUID=000748BD59C807AC295102B561626364; LE4=+5SoM6V421+314+4 > 12 VCL_call c recv > 12 VCL_return c lookup > 12 VCL_call c hash > 12 VCL_return c hash > 12 VCL_call c miss > 12 VCL_return c fetch > 12 Length c 455 > 12 VCL_call c deliver > 12 VCL_return c deliver > 12 TxProtocol c HTTP/1.1 > 12 TxStatus c 503 > 12 TxResponse c Service Unavailable > 12 TxHeader c Server: Varnish > 12 TxHeader c Retry-After: 30 > 12 TxHeader c Content-Type: text/html; charset=utf-8 > 12 TxHeader c Content-Length: 455 > 12 TxHeader c Date: Sat, 08 Mar 2008 22:43:15 GMT > 12 TxHeader c X-Varnish: 42332632 > 12 TxHeader c Age: 0 > 12 TxHeader c Via: 1.1 varnish > 12 TxHeader c Connection: keep-alive > 12 ReqEnd c 42332632 1205016194.493165016 1205016195.508080959 > 0.005739927 1.014875889 0.000040054 This client sent a different Accept-Encoding header than the first one, so from Varnish's perspective, these two requests are actually for two different objects. > And here is the current vcl.conf: Is it the same vcl.conf that was in effect when the above requests were logged? > # > # This is a basic VCL configuration file for varnish. See the vcl(7) > # man page for details on VCL syntax and semantics. > # > # $Id: default.vcl 1929 2007-08-29 15:37:59Z des $ > # > > # Default backend definition. Set this to point to your content > # server. > > backend default { > set backend.host = "172.31.2.61"; // use your own backend ip address > set backend.port = "80"; // use your own backend port > } > > sub vcl_recv { > > # Remove the "Cookie:" header from the request. > remove req.http.Set-Cookie; > remove req.http.Cache-Control; > > > if (req.request == "GET" && req.url ~ > "\.(html|php|gif|jpg|swf|css|js|png|jpg|jpeg|gif|png|tiff|tif|svg|swf|ico|css|js|vsd|doc)$") > { > lookup; > } > > if (req.http.Cache-Control ~ "no-cache") { > lookup; > } > if (req.http.Cache-Control == "max-age=0") { > lookup; > } This is useless, because a) you've already removed that header and b) Varnish doesn't obey it anyway. > # Do a "lookup" in the cache. This goes to "vcl_hit", or to > # "vcl_miss" and then "vcl_fetch" > lookup; If you're going to do a lookup anyway, why bother with all of the above? This will break badly with POST, btw. > } > > # Do the PURGE thing > sub vcl_hit { > } > sub vcl_miss { > } > > sub vcl_fetch { > if (obj.ttl < 7200s) { > set obj.ttl = 7200s; > } > insert; > > if (obj.http.Pragma ~ "no-cache" || obj.http.Cache-Control ~ "no-cache" || > obj.http.Cache-Control ~ "max-age=0") { > insert; > } This is useless because a) the "insert" above terminates vcl_fetch and b) Varnish does not obey Pragma or Cache-Control anyway. > > if (obj.ttl < 3600s) { > set obj.ttl = 3600s; > } > insert; Redundant. > } > > sub vcl_hash { > > set req.hash += req.url; > hash; > } Why not host? Why define vcl_hash at all? The default should suffice. DES -- Dag-Erling Smørgrav Senior Software Developer Linpro AS - www.linpro.no
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