Re: [squid-users] two siblings

On Wednesday 03 April 2002 19:53, smiles@poczta.fm wrote:
> Hi I have two siblings working together
>
> both about 50GB of cache size, they serve abount 800KBps but they
> send a very small amount of data each to other (about 8KB)
>
> when i have some other caches in relationship (some parents) i have
> about of 100KB of brand from parent to my cache.
>
> why the transfer between my caches is so small and between another
> caches so big, how to check what's wrong ?

There is a big difference between a sibling and a parent relation:

The sibling relation is only used if the sibling has a more up to
date copy of the requested document, while the parent relation is
used for any requests that can be beneficial to the cache of the
parent, so there should be a big difference in utilization between a
parent and a sibling relation. I would say the 1/10 ratio is quite
realistic for a sibling relation compared to a parent relation.

cachemgr is a good tool to get a better picture of what is going on.
Statistics based on ICP_HIT/MISS messages in cache.log is also a
useful tool.

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