Benefits of Varnish vs nginx/ncache?
perbu at varnish-software.com
Thu Apr 21 09:55:56 CEST 2011
On Mon, Apr 18, 2011 at 2:36 PM, James Thornton <james at jamesthornton.com>wrote:
> When you have nginx as a reverse proxy to your application servers,
> what are the benenfits of adding Varnish as the caching layer between
> nginx and the app servers (as depicted here
> http://www.heroku.com/how/architecture) vs having nginx perform the
> caching, now that ncache is built into nginx?
Varnish has VCL, which makes it more flexible than the cache built into
Nginx. The Nginx cache is a "look we can do caching as well" whereas
Varnish is only built for caching.
I don't know that much about nginx, but I would guess features such as
"saint mode", grace, etc. are hard to implement with nginx. The simple stuff
should be reasonably comparable.
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