[Dxspider-support] Users vs Performance?

[Arnold]

On Sat, 08 Feb 2003 22:59:57 -0700
Kelly Jones <kjones at sullivan1.com> wrote:

> Well, I suspect I'm quickly becoming Dirk's favorite person.  :-o
> 
> I've run into another situation....

Kelly,

Could you provide us with some more info, like kernel version, perl
version and what is the log telling you on the moment the "hang" appears?
Specially the last lines of /spider/data/debug/2003/0xx.dat would be
handy (if there is something at all)

a perl -v tells you with perl version you have. I have seen that the
latest versions of perl are build thread-multi with some distros,
perhaps this could be the cause? Although I doubt that Slackware 7.1
would carry such version of perl.

sysop at wrk:/spider/perl> perl -v

This is perl, v5.8.0 built for i586-linux-thread-multi

Copyright 1987-2002, Larry Wall

I have done in the past some tests too with a lot of clients connected
and I could easily reach 200 (I did't continue beyond that point)
without any problem.

> 
> It seems that once I get ~40 users logged in the console hangs.  Also, upon 
> login attempt, after entering your callsign, nothing happens.  The whole 
> cluster part comes to a screeching halt.
> 
> I was able to verify this by logging in 60 "robots" and waiting for Spider 
> to break.  Sure enough, I can duplicate this "hang" on demand.
> 
> Is there a functional limitation on users/node connections?  It's not 
> uncommon for there to be upwards of 75 users on my node.  If anyone needs a 
> demonstration of the "hanging" symptoms, I'll be happy to oblige.
> 
> The system is a Celeron 500, 256 meg RAM, ATA100 drive, Slackware 
> 7.1.  Also updated Spider to 1.51 b 57.191.
> 
> Thanks for any ideas,
> Kelly - KE9KD
> 
> 
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-- 
'73 Arnold (pa4ab / ea1cyz)

e-mail: <Pa4ab at pa4ab.net>