Varnish Prefetch

Poul-Henning Kamp phk at
Mon Feb 1 10:18:37 CET 2010

In message <75cf5801002010157ybf03f32v32232555560dca71 at>, Paras F
adte writes:

>Any work around possible in varnish to make varnish check objects at backend
>some time before they actually reach their expires time? Or is it just not
>possible to do so in varnish?

We have a facility called 'grace' that does pretty much the same thing,
just slightly different.

Good explanation here:

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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