still using cache when fetching content

Rogerio Schneider stockrt at gmail.com
Wed Dec 2 21:53:38 CET 2009


Wasn't him talking about serving graced objects?

Att,
Rogerio Schneider

Em 01/12/2009, às 05:27, Tollef Fog Heen <tfheen at redpill-linpro.com>  
escreveu:

> ]] Jean-Christophe Petit
>
> | Is it possible to make Varnish sending the cache content at the same
> | time it is fetching from the backend ?
>
> Not at the moment, no.
>
> | It will be more efficient for slow dynamic content ;)
> | For example, I have a php page taking up to 5sec to run. If  
> Varnish was
> | able to get it while still sending the old cache page, it would be
> | really great.
>
> You could trick this by having a script that revisits any URLs that  
> are
> slow every N minutes and set obj.ttl to 0s in vcl_hit if the user  
> agent
> (or IP address) is what you expect for your script.  Might not work if
> you have many different URLs, though.
>
> -- 
> Tollef Fog Heen
> Redpill Linpro -- Changing the game!
> t: +47 21 54 41 73
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