Thanks for that! However, I've tried the solution given at the end (setting the
TTL to a low value when passing), and it doesn't work. According to some of the
comments on the page by Anders, the TTL value mightn't be honoured after a pass:
Anders Nordby January 11, 2010 at 3:00 pm
I had some issues with this as well. As I am running trunk, I don’t have
beresp.ttl instead of obj.ttl. I’m not sure setting beresp.ttl is respected
after a pass in vcl_fetch. I’ll try, as what I have been doing (restart and
catch the request back in vcl_recv) is causing other headaches.
Anders Nordby January 11, 2010 at 3:02 pm
I wonder if default TTL is actually used, instead of beresp.ttl, if I pass in
vcl_fetch? I have a long default TTL, and had serious problems controlling TTL
with pass in vcl_fetch.
The change I've made in my VCL is
sub vcl_fetch {
if (beresp.http.X-SP-NoCache ~ "(?i)yes") {
set beresp.ttl = 1s;
return (pass);
}
//...other code
}
Could anyone shed any light on this? Is this the wrong place or wrong object
for me to be setting the ttl?
Thanks,
Connor Walls
-----Original Message-----
From: Tollef Fog Heen [mailto:[email protected]]
Sent: 09 August 2011 10:54
To: Connor Walls
Cc: [email protected]
Subject: Re: Problem with pass in vcl_fetch
]] Connor Walls
| The thing that’s confusing me, and that’s leading me to believe it
| isn’t my vcl code that’s the problem, is that flushing the cache is
| fixing the issue. I don’t understand how flushing the cache can affect
| the behaviour of any page which isn’t currently stored in the cache?
| I’m running varnish-2.1.3 if that’s relevant. Any help would be
| greatly appreciated.
You want to read up on hit for pass objects, see
http://kristianlyng.wordpress.com/2010/01/08/hitpass-objects-and-varnish/
Regards,
--
Tollef Fog Heen
Varnish Software
t: +47 21 98 92 64
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