[Varnish] #1772: first_byte_timeout is ignored when re-using a backend connection (HTTP Keep Alive)

[Varnish]

#1772: first_byte_timeout is ignored when re-using a backend connection (HTTP Keep
Alive)
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 Reporter:  tnt       |       Owner:
     Type:  defect    |      Status:  new
 Priority:  normal    |   Milestone:
Component:  varnishd  |     Version:  4.1.0-TP1
 Severity:  normal    |  Resolution:
 Keywords:            |
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Comment (by tnt):

 The way I see it there is two ways to see this :

 - Either make VBC_Wait account for the timeout (and yes, first_byte would
 be the one here) then report any unused timeout to the rest of the process
 like you described.

 - Ensure VBC_Wait never blocks for long. After all it's mostly a
 lock/ownership change and the fact this only happens when bytes are
 exchanged on the fd is a bit weird to me.

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1772#comment:5>
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