[Varnish] #524: esi + keepalive + HTTP/1.0 hangs untill sess_timeout

Varnish varnish-bugs at projects.linpro.no
Tue Jun 23 13:37:30 CEST 2009

#524: esi + keepalive + HTTP/1.0 hangs untill sess_timeout
 Reporter:  nicholas  |        Type:  defect
   Status:  new       |    Priority:  normal
Milestone:            |   Component:  build 
  Version:  trunk     |    Severity:  normal
 Keywords:            |  
 When using HTTP/1.0 clients like wget or ab to test an esi parsed page,
 the client hangs untill keepalive times out (sess_timeout, default 5s). No
 closing tcp flags after the content is sent, no tcp traffic in the
 interval. Varnish closes the connection after 5s with FIN, ACK.

 With esi parsing on we se no Content-Length header, which we guess is by

 Both ab and wget uses HTTP/1.0.

 wget --no-http-keep-alive works like expected.

 wget --ignore-length works like expected.

 HTTP/1.1 clients work as expected.

 skarven:~# varnishd -V
 varnishd (varnish-2.0.4)
 Copyright (c) 2006-2009 Linpro AS / Verdens Gang AS

 skarven:~# rpm -qa | grep varnish

 Shout for more details or testing.

Ticket URL: <http://varnish.projects.linpro.no/ticket/524>
Varnish <http://varnish.projects.linpro.no/>
The Varnish HTTP Accelerator

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