Varnish Grace Question?

[nick tailor]

Hello,

So, I used this link
http://www.lullabot.com/articles/varnish-multiple-web-servers-drupal to
setup my varnish stuff.

Made some minor adjustments to the probes, however if I stop stop one of my
webservers to see if the content my varnish serves is from the cache, it
just shows a page service unavailble, and from what I've read you need to
have the grace mode stuff in there, which this default vcl for version 3
does.

Anyone, have any ideas why my Drupal sites are not serving cached? when my
backend are down.

=====================================================
# Respond to incoming requests.
sub vcl_recv {
  # Allow the backend to serve up stale content if it is responding slowly.
  set req.grace = 6h;
}

# Code determining what to do when serving items from the Apache servers.
sub vcl_fetch {
  # Allow items to be stale if needed.
  set beresp.grace = 6h;
}
=====================================================

Cheers

Nick Tailor
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