RE: Sudden Onset Freezes and Lockups - Ideas
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We have the same problem at one of our sites. It appeared at about the
same time (7 -10 days ago) with two MilCirc terminals.
Both run Windows XP SP-2. One has 128 MB of RAM, the other 512. Neither
PC has had any changes or upgrades applied that would explain the
problem. Both communicate with the server over the Internet via
I've asked the staff at this location to copy the output from the Java
window and either print it or e-mail it to me along with a description
of what specific task was being attempted. I haven't received enough
hard data yet to warrant opening a call with III.
If we identify a cause I'll pass it along to you. The problem is severe
enough to have driven the staff back to using Telnet circulation except
during slow periods.
Mark A. Stoffan
Network Librarian, Western North Carolina Library Network
1 University Heights, CPO 1500
Asheville, NC 28804 (828) 232-5095 (office)
mstoffan at wncln dot lib dot unca dot edu (828) 231-6285 (cell)
wncln.lib.unca.edu (828) 232-5137 (fax)
From: Karl Beiser [mailto:beiser at maine dot edu]
Sent: Tuesday, August 30, 2005 11:07 AM
To: INNOPAC at innopacusers dot org
Subject: Sudden Onset Freezes and Lockups - Ideas
Beginning a week ago our Minerva consortial system has had a very
problem with momentary freezes and hard Millennium client lockups that
with such frequency that the various Millennium clients are virtually
unuseable. Any experience or insight you might have with this sort of
would be much appreciated.
Millennium Circulation, Cataloging, Serials "hesitate" 10 seconds to a
or more between mouse clicks and keystrokes. This can happen at any
There is no pattern to when this happens or what the user is doing at
time. These hesitations can happens as frequently as every minute or
though once every 5-10 minutes is more common.
Often, the "hesitations" appear to never end. They turn into full
Staff must use the Windows Task Manager to close down the client, then
up a new one. Other client software runs normally during the lockup.
This problem occurs only in libraries that connect to the server through
statewide Maine School and Library Network (MSLN). Those using a DSL or
cable modem circuit do not have the problem. However, only 1/4 of the
libraries have the problem -- about 10 libraries. Those 10 libraries
geographical or network topology commonalities that separate them from
other libraries as far as we can see.
The problem has been very nearly constant for about a week among the 10
affected libraries. Pretty much all the Millennium client machines
about the same, irrespective of operating system. The machines are all
the map in respect to workstation memory, from 128 MB to 1 GB of RAM,
Win 98, NT, 2000 to XP.
Oh, and bandwidth tests indicate that there is plenty of available
bandwidth coincident with these problems. There could be downward
in general terms the bandwidth is not being strangled by some other
Any suggestions, insights, clarifying questions, etc. would be much
appreciated as we work with the folks who host our server and manage
try to uncover what is an elusive and probably compound cause of this
Karl Beiser, Library Systems Coordinator
Maine State Library
Bangor, ME 04402
beiser at maine dot edu
tel:207-581-1656; fax: 207-581-1653; pager: 207-750-0330