Miscellaneous questions

Michael S. Fischer michael at dynamine.net
Tue Mar 18 00:07:59 CET 2008


On Mon, Mar 17, 2008 at 3:32 PM, DHF <varnish-list at itiva.com> wrote:
>  This is called CARP/"Cache Array Routing Protocol" in squid land.
>  Here's a link to some info on it:
>
>  http://docs.huihoo.com/gnu_linux/squid/html/x2398.html
>
>  It works quite well for reducing the number of globally duplicated
>  objects in an multilayer accelerator setup, as you can add additional
>  machines in the interstitial space between the frontline caches and the
>  origin as a cheap and easy way to increase the overall ram available to
>  hot objects without having to use some front end load balancer like
>  perlbal, big ip or whatever to direct the individual clients to specific
>  frontlines to accomplish the same thing ( though you usually still have
>  a load balancer for fault tolerance ).  Though in squid there are some
>  bugs with their implementation ...

Thanks for the reminder.  I'll file RFEs for both the static and CARP
implementations.  I presume the static configuration will be done
first (if at all), as it's probably significantly easier to implement.

--Michael



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