Varnish 3.0.3 http error

Jason Heffner jdh132 at
Fri Feb 1 18:33:53 CET 2013


I've been through some of the archives on the list and have seen some similar problems. I was wondering if anyone can tell why this particular HTTP error might be caused? I also contacted the jetpack developers since it is their plugin returning the HTTP error from apache on the backend. If varnish is taken out of the setup the 302 redirect returned from apache functions properly. I can recreate the issue on a development system, and all other page loads are fine. 

Our setup: RHEL6, Pound 2.6.2, Varnish 3.0.3, Apache 2.2.15, php-fpm 5.3.21

I'd welcome any advice.


varnishlog -d -c -m TxStatus:503
  16 ReqStart     c 45094 812364756
   16 RxRequest    c GET
   16 RxURL        c /wp-admin/admin.php?page=jetpack&action=authorize&_wpnonce=cec3b377a1&code=dhcULw6Zlg&state=2
   16 RxProtocol   c HTTP/1.1
   16 RxHeader     c Host:
   16 RxHeader     c User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:18.0) Gecko/20100101 Firefox/18.0
   16 RxHeader     c Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
   16 RxHeader     c Accept-Language: en-US,en;q=0.5
   16 RxHeader     c Accept-Encoding: gzip, deflate
   16 RxHeader     c Cookie: __utma=165035810.2146825052.1359667423.1359667423.1359672023.2; __utmc=165035810; __utmz=165035810.1359667423.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); bp-activity-oldestpage=1; __qca=P0-1744595654-1359667424495; bp-activity-scope=all; bp
   16 RxHeader     c Connection: keep-alive
   16 RxHeader     c X-Forwarded-For:
   16 VCL_call     c recv pass
   16 VCL_call     c hash
   16 Hash         c /wp-admin/admin.php?page=jetpack&action=authorize&_wpnonce=cec3b377a1&code=dhcULw6Zlg&state=2
   16 Hash         c
   16 VCL_return   c hash
   16 VCL_call     c pass pass
   16 Backend      c 14 default_director web1
   16 FetchError   c http format error
   16 VCL_call     c error deliver
   16 VCL_call     c deliver deliver
   16 TxProtocol   c HTTP/1.1
   16 TxStatus     c 503
   16 TxResponse   c Service Unavailable
   16 TxHeader     c Server: Varnish
   16 TxHeader     c Content-Type: text/html; charset=utf-8
   16 TxHeader     c Retry-After: 5
   16 TxHeader     c Content-Length: 418
   16 TxHeader     c Accept-Ranges: bytes
   16 TxHeader     c Date: Thu, 31 Jan 2013 22:46:08 GMT
   16 TxHeader     c Age: 3
   16 TxHeader     c Connection: close
   16 TxHeader     c X-Cache: MISS
   16 Length       c 418
   16 ReqEnd       c 812364756 1359672365.351407051 1359672368.171207428 1.863311291 2.819756508 0.000043869

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Teaching and Learning with Technology, Information Technology Services
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