Hit ratio dropped significantly after recent upgrades

[Dridi Boukelmoune]

On Tue, Dec 13, 2016 at 3:23 PM, Justin Lloyd <justinl at arena.net> wrote:
> Here’s a typical varnishlog miss for a thumbnail image, appropriately
> sanitized. I can provide more if it helps
>
> https://gist.github.com/Calygos/ca7906da005569046a7031d1fcaa6372

After a quick look at the log, I was able to find which line [1] of
VCL is responsible for this behavior. Your backend doesn't say that
the resource is public, so you may have to configure mediawiki to mark
thumbnails as public. This is not something I can help with.

Cheers

[1] https://gist.github.com/Calygos/105957a997ea3bde6b8257a1f34bbd20#file-wiki-vcl-L144