[Varnish] #369: Enable serving of graced objects if backend is down

[Varnish]

#369: Enable serving of graced objects if backend is down
-------------------------+--------------------------------------------------
 Reporter:  perbu        |       Owner:       
     Type:  enhancement  |      Status:  new  
 Priority:  normal       |   Milestone:       
Component:  build        |     Version:  trunk
 Severity:  normal       |    Keywords:       
-------------------------+--------------------------------------------------
 We would like to be able to serve graced objects if the backend health
 polling says the backend is down.

 Its not clear to me whether this should happen automatically or if it
 should be done explicitly in vcl ( if !req.backend.healthy { lookup;} ).

 It seems to be a minor job enabling this (from my limited understanding of
 the code) but it would be a huge enhancement for varnish.

 Per.

-- 
Ticket URL: <http://varnish.projects.linpro.no/ticket/369>
Varnish <http://varnish.projects.linpro.no/>
The Varnish HTTP Accelerator