[Varnish] #380: sudden Increase in load on server running varnish

Varnish varnish-bugs at projects.linpro.no
Tue Nov 18 09:20:01 CET 2008

#380: sudden Increase in load on server running varnish
 Reporter:  plfgoa    |       Owner:  phk  
     Type:  task      |      Status:  new  
 Priority:  high      |   Milestone:       
Component:  varnishd  |     Version:  trunk
 Severity:  normal    |    Keywords:       

 I have been trying my hand at varnish , which although most of the times
 tends to run without much of an issue, after  running it for about 6-7
 hours there seems to be sudden increase in load on the server with CPU
 usage going upto 100% and the number of worker threads increasing to about
 500 . Is this an issue associated with cleanup when the cache becomes full
 in varnish ? The cache size used was 8GB(RAM disk) . Are there any
 parameters which could be applied to handle this kind of sudden surge in
 load on the server ?

 Any help in this regards will be appreciated and thanks in advance.

 Server Config: Intel Xeon Quad core , OS: SUSE LINUX 10.1 (X86-64) with

 Varnish version used is 2.0.2

 Thank you.


Ticket URL: <http://varnish.projects.linpro.no/ticket/380>
Varnish <http://varnish.projects.linpro.no/>
The Varnish HTTP Accelerator

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