Varnish Cache

I have been looking at Varnish Cache.  I was wondering if anyone is using it on their server and can give me some real-world information based on using it.

I hear it has a high gloss... 

There are very few references to it in the forums. http://www.boonex.com/googlesearch/search?q=Varnish+Cache&gse_filter=googlesearch

 uh oh - high gloss money, better make sure it isnt counterfiet

I read through the tutorials on the Varnish site.  Seems very easy to set up.  It is basically a proxy server that sits between you and your website.  You have Varnish to listen on port 80 and have your server to listen on a different port.  Varnish then transfers the requests to the webserver's port.  Varnish uses a memory cache; so one does need the memory in the server to be able to handle taking part of it for the Varnish cache.

My questions would be how well it would work with Dolphin.  Would there be any problems with Chat; etc.  The other would be multiple sites; can Varnish be configured to work with multiple virtual hosts?

I may have to dig a bit deeper in the Varnish configurations tutorial; I mostly skimmed read last night.

OK, I think I see that Varnish can not handle sites with cookies and we use session cookies to handle logged in users.

Hi @geek_girl

Have you had any more experiences with varnish or is it totally a no go?

I am about to fire up a centos with xvarnish to try my luck

(sorry to awake such old post...)

Hated it! Varnish was such a headache. Had sporadic problems with cookies & users too. Didn't make much difference at all either over existing Boonex cache (most importantly).

So happy and relieved when I removed it from my server.

No, I decided against it.  I would follow launch3's advice.

Hi to all the geeks here!

I was wondering what is your experiences regarding different cache engines - performance vise?

What is your advice to use: memcahe, APC, or simple File cache?

(I am currently using APC engine)

Kind regards

Mayki