The difference between Hit-for-Miss and Hit-for-Pass

A few weeks ago, I wrote and post introducing the concept of Hit-for-Miss and I received a few questions about it because "Hit-for-Pass" is much more common on the interwebz, and it looks like it could do something similar, and I completely omitted it last time. What's up with that?

Let's embark on a short chronological journey explaining how HfM and HfP (as the cool kids call them) came to be, how they are different and why you should care.

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12/4/20 11:15 AM
by Guillaume Quintard

The best way to completely purge a Varnish cache


It's cargo-cult fighting time! Today, we are going to look at a ban expression that you probably have used, and maybe even have recommended (gasp!) to your fellow Varnish users:

req.url ~ /

We'll discuss why we use it, why it's good but mostly bad, and how to fix it. Hopefully, along the way, we'll shed some light on some Varnish internals that you can use in other situations.

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6/18/20 4:08 PM
by Guillaume Quintard

Varnish Score Board, a tool to monitor threads

For a long time Varnish developers wanted a monitoring tool with a feature set similar to Apache’s mod_status, which lets you monitor the status of threads. Varnish is already well-served by several other, similar utilities: varnishstat, which shows internal counters, and varnishlog, which stores session information related to serving a request. 

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10/21/19 3:30 PM
by Dénes Mátételki

Varnish Web Developer Wiki Highlights: Running Varnish on your site

Once you have installed Varnish, actually running Varnish is another ballgame. We put together this brief overview of Varnish tips and tricks for helping you get off to a running start when you implement and use Varnish. It's not magic, but once you master the basics and move into more advanced Varnish territory, it will start to seem like it.

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5/24/17 12:32 PM
by Rubén Romero

Varnish Software Blog

The Varnish blog is where our team writes about all things related to Varnish Cache and Varnish Software...or simply vents.

 

 
 

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