[THIN] Re: Server Lockups -- Please Help
- From: "Mack, Rick" <RMack@xxxxxxxxxxxxxx>
- To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
- Date: Tue, 15 Oct 2002 07:35:43 +1000
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.
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]
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:
- 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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