Thanks to all of you for your help - after a long sleepless weekend, it
finally turned out to be a combination of
1) Dodgy network card on the DB server
2) Network collisions on the LAN
3) Repeated DoS attacks
4) Brute-force password-cracking attempts
5) A dodgy router at the ISP
6) IIS needing a rebuild
7) A missing TOP 1 clause in a query
8) The two servers not wanting to talk to each other on the domain
(getting rid of the domain controller status on the SQL server helped)
.....phew!
Thanks again - if you're ever in Yorkshire, England, I'll buy you a
pint!
Cheers,
Alistair
-----Original Message-----
From: Marc Edwards [mailto:[EMAIL PROTECTED]]
Sent: 08 June 2001 20:25
To: CF-Talk
Subject: Re: OT BUT URGENT: IIS stability
Hmm. Quite honestly, from my experience, having a stable IIS deployment
seems largely a matter of luck, and is subject to your particular recipe
of
Service pack versions, configuration options, the choice of IIS packages
you
have installed (I remember on particular system where installing the
html
web/ftp server administration option caused HUGE problems), peripherals
and
drivers on the machine, and the server hardware itself. I've experienced
systems that run for months without trouble, and others that need
redoing
every few months, even though they have the same software, installed
from
the same set of CD's, on identical models of computers ordered at the
same
time from the same manufacturer!
My suggestion to you is just to rebuild the sucker, and not waste time
trying to pinpoint the source of the trouble, as in most cases you
probably
won't find it. Then when you've got a nice clean and reliable install up
and
running, DON'T TOUCH IT!! Don't try to add any other pieces of software
to
that server, just let it be your web/app server and nothing else.
You might also want to consider migrating to Win2K. From what I've seen
in
the few months I've been using it in production type environments (we
waited
for a respectable time to give time for the worst bugs to be identified
and
sorted out, which is a practice I stick to religiously and unreservedly
recommend to anyone deploying on ANY and every new Microsoft product or
new
version release) it seems to be considerably less finicky.
These views may seem a bit extreme to some people, but since I'm one of
the
guys that needs to mobilise at 3AM , on weekends or on public holidays
if
something goes wrong, I have good reasons for having them......
----- Original Message -----
From: "Alistair Davidson" <[EMAIL PROTECTED]>
To: "CF-Talk" <[EMAIL PROTECTED]>
Sent: Saturday, June 09, 2001 1:02 AM
Subject: OT BUT URGENT: IIS stability
> Hi guys (& gals)
>
> Sorry for the OT post, but I REALLY need help on this one, people's
jobs
> are on the line.....
>
> We have a serious problem with stability on IIS 5, Win 2K, CF 4.5.2.
IIS
> has suddenly started to die. Symptoms include -
>
> - Existing virtual directories get "lost". VDir's that have been
working
> fine for 6 months suddenly return "This page cannot be displayed" IIS
> errors. If you delete the VDir and recreate it, it works again.
>
> - CF pages take forever to return. Flat HTML pages are responding
> reasonably well, but all the images now take forever to download.
> Restarting the CF service seems to help, but only for about half an
> hour, then it returns.
>
> - FTP transfer rates have gone down from over 200K / second to about 5
> BYTES / second.
>
> My first thought was a runaway CF process somewhere, but when we look
at
> performance monitor on the CF/IIS server, CPU usage is only at 5% and
> memory usage is minimal. Then we thought it might be persistent
database
> locks, but we've eliminated that. Performance monitor on the DB server
> shows only minimal CPU / memory usage too.
>
> We have CF and IIS on one server (Dual PIII 800, 1.3GB RAM) and SQL
> running on another. The SQL server is set up as the domain controller.
> CFSTAT shows that the database response time is fine, it's just taking
> ages for requests to get to & from the server.
>
> I know that at my last job, IIS was rebuilt as a regular maintenance
> task every two or three months. This installation of IIS has been for
> the last five or six months until this last week. And no code has
> changed in the last three weeks.
>
> Has anyone else had similar problems? How often do you all have to
> rebuild / re-install IIS ? I need some figures to give to the
management
> ASAP, as they're starting to growl for blood.
>
> Mail me directly if you like
>
> Cheers,
>
> Alistair Davidson
> Senior Web Developer
> Rocom New Media
> www.rocomx.net
>
>
>
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