[Varnish] #324: Full freeze

Varnish varnish-bugs at projects.linpro.no
Mon Sep 22 12:10:04 CEST 2008

#324: Full freeze
 Reporter:  perbu     |        Owner:  phk                
     Type:  defect    |       Status:  reopened           
 Priority:  high      |    Milestone:  Varnish 2.0 release
Component:  varnishd  |      Version:  trunk              
 Severity:  blocker   |   Resolution:                     
 Keywords:            |  
Comment (by phk):

 Random list of things to try for the lack of a better clue:

 Capture a varnishstat snapshot when it fails.

 Do binary search on number of test-files, to see if there is a threshold
 where the problem appears,
 in particular look for effects as working set size hovers around RAM size.

 Try other count/size combinations, 512 files @ 128M, 2048 files @ 32M etc.

 Try binary search on number of clients to see if there is a threshold

 Set very long/short TTL on objects in VCL to see if expiry is involved.

 Disable some CPU cores and see how that changes the picture.

Ticket URL: <http://varnish.projects.linpro.no/ticket/324#comment:9>
Varnish <http://varnish.projects.linpro.no/>
The Varnish HTTP Accelerator

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