server went down

[Bill Warner]

No, this is a quad xeon 550 with 4 gigs ram and 2500Gbs worth
of scsi drives on 5 diffrent arrays.

our application is somewhat old.  It has been running on SCO openserver
now for about 8-10 years.  We are now moveing it over to Linux because
of performance trouble with SCO.  out of 47 SCO servers we have 1
production server up with Linux and about 10 with linux up in testing.
We have been told we are to move everything over to linux as soon as
possible with minimal impact on bussness.

Bill Warner


On 16 Feb 2001 18:57:00 -0700, CIE-Keith wrote:
> I guess your not running your garden variety AMD 500 Linux server?
> 
> Keith
> 
> 
> ----- Original Message -----
> From: Bill Warner <wwarner@direct-alliance.com>
> To: <plug-discuss@lists.PLUG.phoenix.az.us>
> Sent: Friday, February 16, 2001 6:18 PM
> Subject: Re: server went down
> 
> 
> > this would be nice but at almost $70k a pop extra servers like
> > these aren't just laying around fully functional.
> >
> > Bill W
> >
> >
> > On 16 Feb 2001 16:29:39 -0800,  wrote:
> > > I've a suggestion..
> > >
> > > why not set up the new kernel on an identical machine and
> > > mirror the old baox with all the current data.
> > >
> > > if it fails, its a simple matter to put the other box back on the
> circuit
> > > with only minimal time lost.
> > >
> > >
> > > On Fri, 16 February 2001, Bill Warner wrote:
> > >
> > > >
> > > > A little nervous about running a 2.4 on this server it is our
> > > > money maker and runs direct sales for a big computer
> manufacturer
> > > > that you have all heard off (client confidentiality or I would
> say)
> > > > If this thing has down time it costs severalhundred sales a
> minute.
> > > > 2.2.x just has that tried and true warm fuzzy with it while 2.4
> > > > still has that new car smell.  I cant find anyone that is
> running
> > > > a server with this many telnet sessions at thes ame time to even
> > > > compare notes with.  Even web servers and database servers dont
> > > > have this same kind of load.
> > > >
> > > > Thanks for the sugestin though
> > > >
> > > > Bill W
> > > >
> > > > On Thu, Feb 15, 2001 at 06:25:37PM -0700, Brian Cluff wrote:
> > > > > You might want to try running a 2.4 kernel if you aren't
> already.  It's
> > > > > supposed to take care problems like you are describing, and
> you'll get a lot
> > > > > better bang for your buck from the CPU's.
> > > > > Just be care if you are running Reiser on RAID, there are some
> curruption
> > > > > problems with that setup... otherwise..  good stuff!
> > > > >
> > > > > Brian Cluff
> > > > > ----- Original Message -----
> > > > > >   5:23pm  up  2:15, 191 users,  load average: 11.46, 11.16,
> 14.25
> > > > > > 872 processes: 858 sleeping, 14 running, 0 zombie, 0 stopped
> > > > > > CPU0 states: 18.3% user, 81.5% system,  0.0% nice,  0.0%
> idle
> > > > > > CPU1 states: 17.0% user, 83.0% system,  0.0% nice,  0.0%
> idle
> > > > > > CPU2 states: 18.7% user, 81.1% system,  0.0% nice,  0.0%
> idle
> > > > > > CPU3 states: 17.1% user, 82.7% system,  0.0% nice,  0.0%
> idle
> > > > > > Mem:  3954672K av, 2090204K used, 1864468K free,  573700K
> shrd,  331720K
> > > > > > buff
> > > > > > Swap: 1056092K av,    1684K used, 1054408K free
> 1453604K
> > > > > > cached
> > > > > >
> > > > > > this quad system constantly has 80% useage on all 4 procs???
> is this
> > > > > > normal???
> > > > > >
> > > > > > We hit 650 users today and had to reboot.  Not good.  The
> system was
> > > > > > still
> > > > > > running but the load was so high that it would not move.
> There seem to
> > > > > > be atleast
> > > > > > 2-3 process left hanging after someone logs out.
>  usually -sh and our
> > > > > > bussness
> > > > > > application.
> > > > > >
> > > > > > What in a program can cause it not to die when your session
> is over? and
> > > > > > what can i do to help clean these up rather than
> > >
> > >  just haveing greping
> > > > > > them out
> > > > > > of a ps and killing them?
> > > > > >
> > > > > > --
> > > > > > --
> > > > > > Bill Warner
> > > > > > Direct Alliance Corp.
> > > > > > Unix/Linux Admin.
> > > > > >
> > > > > > ________________________________________________
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> > > > > >
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> > > > > >
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> > > > > >
> > > > >
> > > > >
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> > > > --
> > > > --
> > > > Bill Warner
> > > > Direct Alliance Corp.
> > > > Unix/Linux Admin.
> > > >
> > > > ________________________________________________
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> doesn't post to the list quickly and you use Netscape to write mail.
> > > >
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> >
> >
> > --
> > --
> > Bill Warner
> > Direct Alliance Corp.
> > Unix/Linux Admin.
> >
> > ________________________________________________
> > See http://PLUG.phoenix.az.us/navigator-mail.shtml if your mail
> doesn't post to the list quickly and you use Netscape to write mail.
> >
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> 
> 
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-- 
--
Bill Warner
Direct Alliance Corp.
Unix/Linux Admin.