At 9:46 am -0400 (GMT) 4/9/01, Chris Gernon wrote:
> Re: SIMS Crashing About 1x/hour! 9/4/01
> Steve Linford wrote:
> // Look in the Accounts folder to see if there are any really big
> accounts, like over
> // 20MB. I found that SIMS can crash (or it's probably the system
> crashing) when
> // trying to add more mail to an oversize account on a sluggish
> machine with a lot of
> // traffic going on (mine is on an 8500).
>
> You, sir, are THE MAN!!!!!
>
> We don't have a sluggish machine (350MHz B/W G3), but we do have a
> lot of traffic. (We have about 100 users who each have their mail
> clients configured to check for new mail every two minutes.) SO ...
> I checked, and found six mailboxes over 20MB. The largest was 117MB
> <!!!heart attack!!!>.
>
> Luckily, most of them were easily fixable, being misconfigured
> "forwarding-only" accounts that were storing the mail instead of
> discarding it. Anyway, I got all mailboxes down under 20MB, set
> 20MB limits on all mailboxes, crossed my fingers, and checked it
> many times during the weekend.
>
> Lo and behold, I am writing this on Tuesday morning and it is still
> up!!!
If it didn't go futt two minutes after you wrote that (which is
usually Sod's Law), then I think what was happening was that SIMS was
opening a very large account file like that 117MB one to append more
mail to it, but because of its size it takes a few seconds to open
and was locking up (hogging) the machine during that time. On a busy
machine SIMS (and probably other stuff like any DNS or web services)
is receiving continuous connection requests which are queuing up and
crashing TCP/IP. I think.
--
Steve Linford
Ultradesign Xtreme Network
http://www.uxn.com
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