Error 503 Backend fetch failed - XID: 208396
Albert Tollkuçi
albert.tollkuci at gmail.com
Fri Jun 17 17:35:45 CEST 2016
Hello,
I configured varnish a few weeks ago and things were running OK. Suddently
yesterday it stopped working with the following error:
*Error 503 Backend fetch failed*
*Backend fetch failed*
*Guru Meditation:*
*XID: 208396*
Here it's the result of varnishlog:
** << Request >> 65581*
*- Begin req 2 rxreq*
*- Timestamp Start: 1466080309.362022 0.000000 0.000000*
*- Timestamp Req: 1466080309.362022 0.000000 0.000000*
*- ReqStart 66.249.64.175 47813*
*- ReqMethod GET*
*- ReqURL /lajme/c66d2a2515/news.aspx*
*- ReqProtocol HTTP/1.1*
*- ReqHeader Host: time.ikub.al <http://time.ikub.al>*
*- ReqHeader Connection: Keep-alive*
*- ReqHeader Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8*
*- ReqHeader From: googlebot(at)googlebot.com <http://googlebot.com>*
*- ReqHeader User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1;
+http://www.google.com/bot.html <http://www.google.com/bot.html>)*
*- ReqHeader Accept-Encoding: gzip,deflate,br*
*- ReqHeader If-Modified-Since: Wed, 15 Jun 2016 07:10:05 UTC*
*- ReqHeader X-Forwarded-For: 66.249.64.175*
*- VCL_call RECV*
*- ReqUnset Host: time.ikub.al <http://time.ikub.al>*
*- ReqHeader Host: time.ikub.al <http://time.ikub.al>*
*- ReqURL /lajme/c66d2a2515/news.aspx*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- VCL_return hash*
*- ReqUnset Accept-Encoding: gzip,deflate,br*
*- ReqHeader Accept-Encoding: gzip*
*- VCL_call HASH*
*- VCL_return lookup*
*- Debug "XXXX MISS"*
*- VCL_call MISS*
*- ReqHeader x-state: MISS*
*- VCL_return fetch*
*- Link bereq 65582 fetch*
*- Timestamp Fetch: 1466080309.362211 0.000190 0.000190*
*- RespProtocol HTTP/1.1*
*- ^C*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- ReqHeader Cookie:*
*- ReqUnset Cookie:*
*- VCL_return hash*
*- ReqUnset Accept-Encoding: gzip,deflate,br*
*- ReqHeader Accept-Encoding: gzip*
*- VCL_call HASH*
*- VCL_return lookup*
*- Debug "XXXX MISS"*
*- VCL_call MISS*
*- ReqHeader x-state: MISS*
*- VCL_return fetch*
*- Link bereq 32810 fetch*
*- Timestamp Fetch: 1466080311.215487 0.000181 0.000181*
*- RespProtocol HTTP/1.1*
*- RespStatus 503*
*- RespReason Backend fetch failed*
*- RespHeader Date: Thu, 16 Jun 2016 12:31:51 GMT*
*- RespHeader Server: Varnish*
*- RespHeader Content-Type: text/html; charset=utf-8*
*- RespHeader Retry-After: 5*
*- RespHeader X-Varnish: 32809*
*- RespHeader Age: 0*
*- RespHeader Via: 1.1 varnish-v4*
*- VCL_call DELIVER*
*- RespHeader X-Cache: MISS*
*- RespHeader X-Cache-Hits: 0*
*- RespUnset Server: Varnish*
*- RespUnset X-Varnish: 32809*
*- RespUnset Via: 1.1 varnish-v4*
*- VCL_return deliver*
*- Timestamp Process: 1466080311.215512 0.000206 0.000025*
*- RespHeader Content-Length: 282*
*- Debug "RES_MODE 2"*
*- RespHeader Connection: keep-alive*
*- Timestamp Resp: 1466080311.215539 0.000233 0.000027*
*- Debug "XXX REF 1"*
*- ReqAcct 389 0 389 215 282 497*
I have tested the same page with:
*curl time.ikub.al/lajme/c66d2a2515/news.aspx
<http://time.ikub.al/lajme/c66d2a2515/news.aspx>*
and it's working fine. Headers from curl are:
** Trying 13.94.212.211...*
** Connected to time.ikub.al <http://time.ikub.al> (13.94.212.211) port 80
(#0)*
*> HEAD /lajme/c66d2a2515/news.aspx HTTP/1.1*
*> Host: time.ikub.al <http://time.ikub.al>*
*> User-Agent: curl/7.43.0*
*> Accept: */**
*>*
*< HTTP/1.1 200 OK*
*HTTP/1.1 200 OK*
*< Cache-Control: private*
*Cache-Control: private*
*< Content-Length: 93606*
*Content-Length: 93606*
*< Content-Type: text/html; charset=utf-8*
*Content-Type: text/html; charset=utf-8*
*< Last-Modified: Fri, 06 Sep 2013 11:50:00 GMT*
*Last-Modified: Fri, 06 Sep 2013 11:50:00 GMT*
*< Server: Microsoft-IIS/8.5*
*Server: Microsoft-IIS/8.5*
*< X-AspNet-Version: 2.0.50727*
*X-AspNet-Version: 2.0.50727*
*< X-Powered-By: ASP.NET <http://ASP.NET>*
*X-Powered-By: ASP.NET <http://ASP.NET>*
*< Date: Fri, 17 Jun 2016 15:31:24 GMT*
*Date: Fri, 17 Jun 2016 15:31:24 GMT*
Any idea what may be causing this?
Thank you,
Albert
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