Quoting Amos Jeffries : > apmailist@xxxxxxx wrote: > > Hi, > > > > > > > > I encounter An "invalid Response" on a particular site. > > This is what I get from squid : > > -------------------------- > > The requested URL could not be retrieved > > > > While trying to process the request: > > > > GET > > > /nms/jsp/webForm.jsp?fo=bl&id=S7Nn7isL2GdroOkABgb1B35boKb4Z2SiMGMFGb/VEkJUIAIA > > HTTP/1.1 > > Host: somesite.com > > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9) > > Gecko/20071025 Firefox/2.0.0.9 > > Accept: > > > text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 > > Accept-Language: en,en-us;q=0.7,fr-fr;q=0.3 > > Accept-Encoding: gzip,deflate > > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 > > Keep-Alive: 300 > > Proxy-Connection: keep-alive > > Proxy-Authorization: Basic Y<snip>8= > > -------------------------- > > > > relaxed_header_parser value is at "warning". > > > > I had a look at the headers, but couldn't find anything peculiar. But I'm > not an > > expert in this field. > > Cache.log has said (I'm not 200% sure if it is related or not : > > 2007/11/05 16:11:53| ctx: enter level 30: '!ê«@' > > 2007/11/05 16:11:53| ctx: enter level 31: 'http://somesite.com/favicon.ico' > > 2007/11/05 16:11:53| ctx: enter level 32: 'http://somesite.com/favicon.ico' > > 2007/11/05 16:11:53| # ctx: suspiciously deep (32) nesting: > > > > With Log_mime_headers on , I have > > 1194278039.445 135 10.7.85.46 TCP_MISS/502 1996 GET > > http://somesite.com/nms/jsp/webForm.jsp? user-andrew DIRECT/213.139.xxx.xxx > > text/html [Host: somesite.com\r\nUser-Agent: Mozilla/5.0 (Windows; U; > Windows > > NT 5.1; en-US; rv:1.8.1.9) Gecko/20071025 Firefox/2.0.0.9\r\nAccept: > > > text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5\r\nAccept-Language: > > en,en-us;q=0.7,fr-fr;q=0.3\r\nAccept-Encoding: > gzip,deflate\r\nAccept-Charset: > > ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nKeep-Alive: 300\r\nProxy-Connection: > > keep-alive\r\nProxy-Authorization: Basic YXsnipcm8=\r\nPragma: > > no-cache\r\nCache-Control: no-cache\r\n] [HTTP/1.0 502 Bad > Gateway\r\nServer: > > squid\r\nDate: Mon, 05 Nov 2007 15:53:59 GMT\r\nContent-Type: > > text/html\r\nContent-Length: 1740\r\nExpires: Mon, 05 Nov 2007 15:53:59 > > GMT\r\nX-Squid-Error: ERR_INVALID_RESP 0\r\n\r] > > > > Two tcpdumps, one from the squid server, another one from another internet > > access point, show strange characters just between the headers and the html > > stanza. See the "5ea" , then the "1" , and the "0". > > But this is through Wireshark and I'm not sure about the exactness. > > Wireshark is exact to the bit. So the strange characters "5ea","1","0" *were* actually on the wire ? -- 5ea <html> <head> <META http-equiv="Content-Type" content="text/html; charset=utf-8"> snip </body> </html> 1 0 -- > > > > > -------------------------- > > GET > /nms/jsp/webForm.jsp?fo=bl&id=S7Nn9L2GdroOkABgb1B35boKb4Z2SiMGMFGb/VEkJUIAIA > > HTTP/1.1 > > Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, > > application/x-shockwave-flash, application/vnd.ms-excel, > > application/vnd.ms-powerpoint, application/msword, */* > > Accept-Language: fr > > UA-CPU: x86 > > Accept-Encoding: gzip, deflate > > User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR > > 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 2.0.50727) > > Host: somesite.com > > Connection: Keep-Alive > > > > HTTP/1.1 200 OK > > Date: Tue, 06 Nov 2007 04:42:03 GMT > > Server: Apache/2.0.52 (Red Hat) > > Transfer-Encoding: chunked > > For starters the server is broken and throwing object that squid can't > handle back at squid. Chunked encoding must not be sent to a HTTP/1.0 > client. I'm confused : Which HTTP/1.0 client ? I see GET HTTP/1.1 > IIRC there was one aborted 2.6 release of squid that tried to cope, but > that was reverted out from main due to problems. Henrik would know more > on that. > Check you are running a recent 2.6 stable. > > > Amos > I forgot to mention the version we're using : 2.6 Stable16. Also, the directive "via" is set to "off". Andrew
