[THIN] Re: Server Lockups -- Please Help
- From: Jennifer Booth <JBooth@xxxxxxxxxx>
- To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
- Date: Tue, 15 Oct 2002 10:18:10 -0700
Thanks Joe, I'll take a looksee and see if that might help.
Jennifer
-----Original Message-----
From: Joe Shonk [mailto:JShonk@xxxxxxxxxxxxxx]
Sent: Tuesday, October 15, 2002 10:11 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Server Lockups -- Please Help
Did you enable any of the TCP232 options? If your using Gigabit ports, =
you should.. Enabling PAWS with a timestamp can prevent packet sequence =
numbers from being recycled too quickly on a gigabit network.
Joe
-----Original Message-----
From: DMelczer@xxxxxxxx [mailto:DMelczer@xxxxxxxx]
Sent: Tuesday, October 15, 2002 9:25 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Server Lockups -- Please Help
Jennifer-
We're running with a Cisco 6513 switch. Reboots on the box are about a
minute and a half from the start of shutdown to full login screen. =
Logging
in (with running our logon scripts) takes about 25-30 seconds max.
I have already downloaded the latest Intel NIC drivers when the =
originals
didn't work. Driver revs didn't seem to be the problem.
And as for longshots...everything I've done so far is a longshot...I've
getting used to them by now...
If you've disabled the paging executive, try re-enabling it. I've got 9 =
and
6 hours going strong right now...
The registry key is: HKLM\System\CurrentControlSet\Control\Session
Manager\memory Management\DisablePagingExecutive
Set it to: REG_DWORD:0
Hope this helps you.
-Dave Melczer
dmelczer@xxxxxxxx
-----Original Message-----
From: Jennifer Booth [mailto:JBooth@xxxxxxxxxx]
Sent: Tuesday, October 15, 2002 11:16 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: Server Lockups -- Please Help
Hi Dave -
Funny... I have had the exact same difficulties on non-Citrix boxes
here: 6400, 6650 & 6450. What kind of switches are you running? We =
ended
up having to yank one or both of the Gig NICS in order to get a working =
box,
and the problem existed on both Intel and Broadcom NICs. It looks like =
now
the problem may be within our Foundry switches and/or the configuration. =
We
were unable to get a good answer from Dell, we had to get updated =
drivers
from Intel's site. Even still, we ended up rebuilding the 6400 7 times,
doing all the same things you have tried. But if we ran with only one =
of
the NICs, we were ok.
Let me ask you this too: When you reboot the box, how long is it
taking to give you the logon screen? Then when you login, how long is =
it
taking to get a desktop?
This may be a longshot, but it's something! Hope it gives you some
clues...
Jennifer
Jennifer Booth
Systems Engineer
Viejas Enterprises
Alpine, California
jbooth@xxxxxxxxxx
-----Original Message-----
From: DMelczer@xxxxxxxx [mailto:DMelczer@xxxxxxxx]
Sent: Tuesday, October 15, 2002 5:05 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Server Lockups -- Please Help
I thought it could be very high CPU as well...unfortunately, every =
metric I
can measure tells me that this isn't the case...I do have Trend
ServerProtect running on the box, and this is a change from the Norton =
5.0
AV I was running on the older servers. I'm only scanning incoming, =
though.
The CPU and memory hit are minimal. Even with 20 users on the box, CPU
utilization is still under 10%...I never see a spike or a drop...all of =
the
sudden, everything just times out...the funny part is that I can't even =
get
to access the services remotely...server manager times out as well. I =
think
I mentioned this in a previous post, but it's almost like the RPC =
services
just hang...along with explorer...on the console, I can't even =
CTRL-ALT-DEL
to get to a login screen. If I'm logged in during the crash, no screen
redraws are done at all. I can't even CTRL-ALT-DEL to get to task =
manager.
The Dell 1650 are wonderful machines if you can keep the Windows OS =
running
on them...
Oh, well...hopefully the paging executive and SP2 stuff works. Things =
are
looking good so far...
-Dave Melczer
-----Original Message-----
From: Mack, Rick [mailto:RMack@xxxxxxxxxxxxxx]
Sent: Monday, October 14, 2002 5:36 PM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: Server Lockups -- Please Help
Hi Dave,
Saw something like it last week. Really neat. Asked the customer had
anything changed?
I was told no. ;-)
Server was slowing to a crawl and then stopping, I was monitoring almost
everything at the time. CPU fell to next to nothing, no i/o, no network
traffic to speak of.
Turned out that an application (Corel Draw 9) was absolutely thrashing =
the
file/print server on initialisation (coreldraw.ini in users' home
directory). End result was full network i/o request queue and at that =
point
ALL server i/o stopped. Customer had been rebooting at this point to get
things going again.
Left the server hung and ran srvmgr srvmgr on the file/print server,
disconnected all sessions. This "fixed" things temporarily. Upped =
maxmpxct
and maxworkitems on the f/p server. Things got better but not perfect.
Noticed Netshield on F/P server, NICs seemed different. When did thisd
happen? Last week.
Turned off real-time virus checking on F/P server. Problem gone.=20
But really, aside from the new NICs, virus checking and recloned =
servers,
everything was the same. Sigh.....
Regards,
Rick
Ulrich Mack
rmack@xxxxxxxxxxxxxx
Volante Systems
18 Heussler Terrace, Milton 4064
Queensland Australia
tel +61 7 32467704
-----Original Message-----
From: DMelczer@xxxxxxxx [mailto:DMelczer@xxxxxxxx]=20
Sent: Tuesday, 15 October 2002 4:15 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Server Lockups -- Please Help
I've never seen this one before in 6 years working with Citrix products,
perhaps someone out there can help:
Hardware: 2 new Dell 1650 PowerEdge Servers
Dual 1.2 Ghz processors
2 Gig RAM
Intel Pro NICs (2) teamed copper gigabit
Software: Microsoft NT4 Terminal Server Edition, SP6a
MetaFrame XP 1.0 Service Pack 1 / FR1
Problem: The system is fine and stable for hours on end, even under a
moderately heavy load (9 hours, 18+ users concurrent). Then, all of a
sudden everything just stops -- server can be pinged, and mouse =
movements
allowed on the console, but nothing else. All sessions refuse to screen
paint and lock up. The only way to get the server out of this mode is =
to
power it off and power it on.
Solutions tried:=09
- Removed all printer port monitors
- Recreated local host cache
- Reinstalled MetaFrame XP, FR1, Hotfixes 1, 2, 8, 11, 12, 16.
- Reinstalled SP6a for TSE
- Re-created ICA connection in Connection Config Application
- Set Priority on the teamed NICs
- Updated drivers for NICs
- Tried removing NICs from team and running with a single NIC active =
(tried
both NICs)
- Tried to hard-code NIC speeds and duplexes to avoid autosensing (can't =
do
it -- Intel PRO software doesn't allow hard-coding of =
gigabit...autosense
only...allows hardcoding of 10/100 at full/half, just nothing gigabit)
Has ANYONE seen anything like this before? I'm preparing myself for the
infamous pinkslip...
Any suggestions welcomed, on or off list.
-Dave Melczer
dmelczer@xxxxxxxx
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