Re: [squid-users] squid.conf cache_mem

Something dosn't look right indeed.
I would:
install squid on a non production box, and print out the plain vanilla
squid.conf file.
Than, but the Orilley book on squid. and/or, search google for
squid.conf, to see some examples.
Once you have a baseline set, you can tighten it down from there.

Pete

> Matt Anderson wrote:
>
> Ok, here is my stupid question :). My production squid server was set
> up by a contractor and I'm trying to figure out how he's got it set up
> so if it ever breaks I can fix it or what not. I notice in the
> squid.conf there is this statement .... something looks a little fishy
> to me -- is this a normal statement? Thanks!
>
> If it's not normal will this cause problems? Is it something I should
> change? Should I never call this contractor again ;)?
>
>
> # TAG: cache_mem (bytes)
> # NOTE: THIS PARAMETER DOES NOT SPECIFY THE MAXIMUM PROCESS
> # SIZE. IT PLACES A LIMIT ON ONE ASPECT OF SQUID'S MEMORY
> # USAGE. SQUID USES MEMORY FOR OTHER THINGS AS WELL.
> # YOUR PROCESS WILL PROBABLY BECOME TWICE OR THREE TIMES
> # BIGGER THAN THE VALUE YOU PUT HERE
> #
> # 'cache_mem' specifies the ideal amount of memory to be used
> # for:
> # * In-Transit objects
> # * Hot Objects
> # * Negative-Cached objects
> #
> # Data for these objects are stored in 4 KB blocks. This
> # parameter specifies the ideal upper limit on the total size of
> # 4 KB blocks allocated. In-Transit objects take the highest
> # priority.
> #
> # In-transit objects have priority over the others. When
> # additional space is needed for incoming data, negative-cached
> # and hot objects will be released. In other words, the
> # negative-cached and hot objects will fill up any unused space
> # not needed for in-transit objects.
> #
> # If circumstances require, this limit will be exceeded.
> # Specifically, if your incoming request rate requires more than
> # 'cache_mem' of memory to hold in-transit objects, Squid will
> # exceed this limit to satisfy the new requests. When the load
> # decreases, blocks will be freed until the high-water mark is
> # reached. Thereafter, blocks will be used to store hot
> # objects.
> #
> # The default is 8 Megabytes.
> #
> cache_mem
> 484848484848484848484848484848484848484848484848484848484848484848484848484848484848484848484848
> MB
>
> Matt Anderson
> MCSE, CNE, CCNA, Network+
> Network Engineer
> Maly's Corporate Headquarters
> (616) 956-2246

-- 
_______________________________________
Pete Kuczynski
Sr. Field Engineer
DHL Airways Inc.
Infrastructure Technology & Services
(773)-462-9758
24/7 Helpdesk 1-800-434-5767