vcl_error and first_byte_timeout?

Jeff Potter jpotter-varnish at
Fri Apr 4 15:40:00 CEST 2014

Hi List, 

Just checking if anyone has any ideas … the list has been awfully quiet in general!


On Apr 2, 2014, at 11:53 AM, Jeff Potter <jpotter-varnish at> wrote:

> Hi List,
> Is there a way to figure out from inside vcl_error if the error was raised because of a backend timeout?
> I’m trying to return a synthetically generated doc to clients that lets us see that the error was due to a backend taking too long to reply, so that the client can react different in this case (as opposed to other errors).
> Thanks!
> -Jeff

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