how fast can you expire a cache key?

Per Buer perbu at
Mon Sep 3 22:50:56 CEST 2012

On Mon, Sep 3, 2012 at 10:44 PM, S Ahmed <sahmed1020 at> wrote:

> If I have hundreds of thousands to millions of pages in a web application,
> and the pages are being updated at a rate of a few hundred per second (and
> thus require the cache to be invalidated), is this a reasonable level of
> cache expiration that I hit varnish with?


> Would love to hear the high end of cache expiration that others are doing.

You're fine as long as you PURGE the objects. The bans probably won't work
so well at those speeds.

Per Buer
Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 / Skype: per.buer
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