Is LCI on the radar?

Per Buer perbu at
Tue May 31 11:34:15 CEST 2011


On Tue, May 31, 2011 at 12:23 AM, Lukas Kahwe Smith <mls at>wrote:

> Hi,
> I assume some of you have stumbled over LCI by now:
> This is actually quite interesting. For an application we are building we
> are looking to create an invalidation service to which the various
> independent frontend server applications can register and which gets
> notified by the backend. Of course the frontends then have to figure out
> which pages all need to be invalidated. The original article will be easy.
> Some of the category overviews will also be easy to delete. What will
> already get harder is invalidating all articles that reference the given
> article and worse yet would be if we start caching search results.
> So I am wondering if you guys are looking at LCI for a future varnish
> impovement and if someone has build something like this on top of varnish
> today already that could maybe help us here.

I'm pretty sure this can be implemented in VCL. No need to place it on the
radar. I have an upcoming blog-post describing something similar. It might
get a bit hairy with all the regular expression so it might be cleaner in a

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