Morning all, Once every few days we get a report of a user with a nice big "503 Service Unavailable" on a webpage that refreshes itself every 30 seconds.
The webserver that serves the content appears to be up continuously, although it could well be garbage collecting (it's GlassFish - I need to enable GC logs to capture this activity). Also, our backend connect timeout in our Varnish VCL is currently set to 1s, which could be problematic. In order to help confirm my suspicions would someone mind casting their eyes over the log below? I'm interested to know what caused Varnish to report the 503 - was it a plain connection refused? Did the connection to the backend timeout? I can't tell myself from this log. Thanks, Sam 14 SessionOpen c 10.99.1.15 4679 10.98.13.28:7070 14 ReqStart c 10.99.1.15 4679 1053467939 14 RxRequest c GET 14 RxURL c /some/uri/goes/here 14 RxProtocol c HTTP/1.1 14 RxHeader c Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, applicati 14 RxHeader c Accept-Language: en-gb 14 RxHeader c UA-CPU: x86 14 RxHeader c Accept-Encoding: gzip, deflate 14 RxHeader c User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0 .04506.648; .NET CLR 3.5.21022; InfoPath.2; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) 14 RxHeader c Host: intranet.company.com 14 RxHeader c Connection: Keep-Alive 14 RxHeader c Cookie: amlbcookie=01 14 VCL_call c recv 14 VCL_return c pass 14 VCL_call c pass 14 VCL_return c pass 14 Backend c 27 localhost localhost 27 TxRequest b GET 27 TxURL b /some/uri/goes/here 27 TxProtocol b HTTP/1.1 27 TxHeader b Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, applicati 27 TxHeader b Accept-Language: en-gb 27 TxHeader b UA-CPU: x86 27 TxHeader b User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0 .04506.648; .NET CLR 3.5.21022; InfoPath.2; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) 27 TxHeader b Host: intranet.company.com 27 TxHeader b Cookie: amlbcookie=01 27 TxHeader b Accept-Encoding: gzip 27 TxHeader b X-Varnish: 1053467939 27 TxHeader b X-Forwarded-For: 10.99.1.15 27 BackendClose b localhost 14 VCL_call c error 14 VCL_return c deliver 14 Length c 466 14 VCL_call c deliver 14 VCL_return c deliver 14 TxProtocol c HTTP/1.1 14 TxStatus c 503 14 TxResponse c Service Unavailable 14 TxHeader c Server: Varnish 14 TxHeader c Retry-After: 0 14 TxHeader c Content-Type: text/html; charset=utf-8 14 TxHeader c Content-Length: 466 14 TxHeader c Date: Thu, 30 Jul 2009 09:57:46 GMT 14 TxHeader c X-Varnish: 1053467939 14 TxHeader c Age: 0 14 TxHeader c Via: 1.1 varnish 14 TxHeader c Connection: close 14 ReqEnd c 1053467939 1248947866.962788105 1248947866.963104010 0.000128031 0.000283957 0.000031948 14 SessionClose c error _______________________________________________ varnish-misc mailing list [email protected] http://projects.linpro.no/mailman/listinfo/varnish-misc
