System Attendant using 100% CPU

  • From: "Mike Dufoe" <dufoem@xxxxxxxxxxx>
  • To: "Exchange Support" <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 14 Aug 2003 09:17:36 -0400

Running Windows 2000 Server SP3, Exchange 2000 Server SP3 on same DC.
About every 8-10 hours, our System Attendant (MAD.EXE) uses 100% of the CPU, 
then we get the following Event ID's in the Application log which fills this 
log within seconds.
Event -  ID 8031
Category - LDAP Operations
Unable to open LDAP session on directory 'name of' using port 389.  
Directory returned the LDAP error [0x50] other.
We''ve ran the update for MSBLAST.
Virus Software is currently updated.
When this happens, our Exchange services are running but nobody can connect to 
Anyone have this issue before as I have been searching everywhere and can't 
find a real solution for this problem.
Thanks in advance,
Mike Dufoe 
System Administrator 
ETI Canada Inc. 
350 Dupont Road 
North Bay, ON 
P1B 8K2 
705-472-1300 ext.346 
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