[Varnish] #750: old probes don't get discarded when new config is activated

[Varnish]

#750: old probes don't get discarded when new config is activated
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 Reporter:  perbu   |        Owner:            
     Type:  defect  |       Status:  closed    
 Priority:  normal  |    Milestone:            
Component:  build   |      Version:  2.1.2     
 Severity:  minor   |   Resolution:  worksforme
 Keywords:          |  
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Comment(by perbu):

 This will be a problem for those who do a lot of vcl changes. Having 20
 configs hammer at your server once a second (not unlikely) will tax your
 server heavily.

 Proposed architectural changes:

 - VCL autodiscard.
 - coalescing of health checks.
 - use initial state when switching config.

 I propose we use the last one - since it adheres to the principle of least
 surprise, at least for me.


 Per.

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Ticket URL: <http://varnish-cache.org/ticket/750#comment:2>
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