Does IIS provide setting for how many connections it will allow? For
example, in Apache, if you set one conenction and that one connection is
being held by a slow CF query, then everything else backs up. Does IIS
behave the same way, or does it establish separate connection queues for
each virtual server?
We were hitting situations where we would get hit with a burst of traffic,
say 80 CF requests per second (about 7Mb of load), for a brief period. Each
CF request has a corresponding 9 or so graphic requests. We are tuned for
CF to only allow 10 concurrent connection (per web server to control
database load), so we very quickly hit a backlog of requests in the web
server waiting for the CF requests to finish. By serving the images out of
a separate instance of Apache, we were able to make sure that once a CF page
was returned, that the corresponding pieces were returned quickly and not
stuck in the queue. Sounds like this might work in IIS by establishing a
virtual server for static elements if the queueing structure is in fact
separate.
Justin
-----Original Message-----
From: Dave Watts [mailto:[EMAIL PROTECTED]]
Sent: Monday, June 04, 2001 1:17 PM
To: CF-Talk
Subject: RE: [RE: IIS or Apache? (WAS RE: can anyone help?)]
> I like to run different services because of the threading
> issues. I do not know how virtual servers within IIS work,
> but with this apache configuration, I pretty much guarantee
> that one apache service bottlenecking (i.e. more CF requests
> than it can handle) does not prevent the other for servicing
> it's requests. This does break down eventually as the TCP
> stack is still a bottleneck in the end.
One IIS virtual server waiting on slow CF responses doesn't seem to affect
another returning static files.
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
voice: (202) 797-5496
fax: (202) 797-5444
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