[Varnish] #503: Assertion failure when trying to fetch a large object

Varnish varnish-bugs at projects.linpro.no
Tue Jul 7 14:19:13 CEST 2009

#503: Assertion failure when trying to fetch a large object
 Reporter:  Sesse   |        Owner:          
     Type:  defect  |       Status:  reopened
 Priority:  normal  |    Milestone:          
Component:  build   |      Version:  trunk   
 Severity:  normal  |   Resolution:          
 Keywords:          |  
Comment (by witsch):

 another update:  i can reliably reproduce the issue with files larger then
 a certain value.  the only response headers sent are
 Date: Tue, 07 Jul 2009 08:04:00 GMT
 Last-Modified: Mon, 22 Jun 2009 08:54:11 GMT
 Content-Length: 687948038
 Content-Type: application/x-tar
 Content-Disposition: attachment; filename=foo.tar
 apparently varnish runs into the above described problem of not being able
 to allocate a "stovedore" in the middle of fetching the object from the
 backend and then simply return a successfull (i.e. 200), but otherwise
 completely empty response...

 ps: this is using 2.0.4 with a storage size of 16gb and the threshold size
 doesn't change when adding more storage

Ticket URL: <http://varnish.projects.linpro.no/ticket/503#comment:4>
Varnish <http://varnish.projects.linpro.no/>
The Varnish HTTP Accelerator

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