What I'd LOVE to figure out how to set up is a spoke and hub cache system.
Let the MAIN site track the sites, then feed that data to all of the wpops.
This way we'd keep most of the traffic of the internet (great to get content in
single digit ms speeds rather than mid to high double digit ones) and we'd not
have to have all of the traffic go back to the main site all of the time. But
cache's don't work well for small, low volume sites.
Oh well, another project for someday.
marlon
----- Original Message -----
From: Travis Johnson
To: WISPA General List
Sent: Thursday, July 10, 2008 9:21 PM
Subject: Re: [WISPA] Any thoughts on a decent cache server
Tom,
You can find all kinds of information if you do searches on squid. It's a
very popular caching system that runs on *nix. The amount of RAM is directly
related to the size of the disk cache.
When we had servers 5 years ago (two of them in parallel) they were the
fastest processors you could buy, with SCSI disk arrays in each one and I think
2GB of RAM each. I would guess in today's world you would be looking at 8GB or
16GB of RAM and very large disk arrays (6 disks x 500GB maybe).
The other thing to consider is you now have another point of failure in your
network. If a disk starts acting strange or the machine does a core dump,
whatever you have re-directing traffic to the box may take 5 seconds to realize
it's down and not send traffic to it. If you put it directly in-line with your
traffic flow, you will have a complete failure of all internet services to your
customers. :(
Travis
Microserv
Tom DeReggi wrote:
Any stats, on how much RAM is a good amount to allocated for the cache
servers, per user served?
Obviously, a large fast DiskDrive, is needed if caching a lot of large
files.
I'd also argue that DiskDrive probably should be located on a dedicated
appliance.
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message -----
From: "Marlon K. Schafer" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Thursday, July 10, 2008 10:49 PM
Subject: Re: [WISPA] Any thoughts on a decent cache server
When we had that trouble we just had to teach them to use the "shift,
refresh" trick. forced the cache to load the new page now instead of when
it normally would have. No trouble with them after that.
marlon
----- Original Message -----
From: "George Rogato" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Thursday, July 10, 2008 8:27 PM
Subject: Re: [WISPA] Any thoughts on a decent cache server
The people that we had the most problems with were web designers who's
sites were cached and they couldn't easily see their changes.
We always told then to add no cache to their sites.
But still it's a phone call and a discussion.
Kurt Fankhauser wrote:
I call that 1% the "high-maintenance customers ".
Kurt Fankhauser
WAVELINC
P.O. Box 126
Bucyrus, OH 44820
419-562-6405
www.wavelinc.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bo Ring
Sent: Thursday, July 10, 2008 4:07 PM
To: WISPA General List
Subject: Re: [WISPA] Any thoughts on a decent cache server
When I was an ISP, that 1% got me in real trouble. They scream loudly.
On Jul 10, 2008, at 3:03 PM, David E. Smith wrote:
Patrick Nix Jr. wrote:
So is it safer/better to avoid caching servers altogether?
About 99% of your users won't notice, or know, or care, that you've
got
anything like that in your network. The savings in bandwidth (and,
to a
lesser extent, money not spent on bandwidth) can help you out of a
tight
spot. Just be aware that the last 1% of customers can get you into
trouble.
David Smith
MVN.net
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