Re: [squid-users] Tuning Squid for large user base

From: Henrik Nordstrom <hno@dont-contact.us>
Date: Sat, 6 Mar 2004 10:11:49 +0100 (CET)

On Fri, 5 Mar 2004, Peter Smith wrote:

> Another thing that might be driving up the # of file desc usage is the
> "half_closed_clients off" you have. On my squids I run with this as in
> the default config, "on".

Setting "half_closed_clients off" considerably reduses the filedescriptor
usage by Squid.

Leaving it in the default "on" setting may cause excessively high
filedescriptor usage if a lot of clients non-responsive sites etc.

> Also, on my systems we are running named instead of using squid's fqdn
> cache, this may help things out a bit--ymmv..

Having a DNS server nearby defenitely helps. There is not a big difference
in having the DNS server on the LAN or on the Squid server itself.

> I notice you have a "redirect_children 30"--are you running a
> redirector? This can significantly alter your numbers.

Indeed. How much depends on the redirector used.

> I'll give you my settings. Again I am very conservative on the
> "cache_dir" size as I think this will eat up quite a bit of RAM to keep
> in-memory-indices.

The guideline for memory usage found in the Squid FAQ chapter on memory
usage is quite good.

Regards
Henrik
Received on Sat Mar 06 2004 - 02:11:53 MST

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