XADM: Directory Store Stops While Calculating Hierarchy Table (157994)
The information in this article applies to:
- Microsoft Exchange Server 4.0
This article was previously published under Q157994 SYMPTOMS
The Microsoft Exchange Server directory store (DS) may stop responding
while calculating the hierarchy table. Through replication, the bad
hierarchy may be copied to all other computers running Microsoft Exchange
Server, causing them to come down also.
CAUSE
The DS incorrectly searches memory that was not allocated when it looks for
the non-existent parent of an orphaned entry in the hierarchy table. The
search loop looking for the parent object decrements and dereferences a
pointer over and over, eventually getting to non-allocated memory. If this
hierarchy table is replicated with orphaned objects, the problem is
replicated with it.
WORKAROUND
To work around this problem, obtain the hotfix mentioned below. With the
hotfix, the search loop is now checked at each iteration against the record
count. If the pointer is invalid, the object is marked as having no parent.
STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 4.0.
This problem was corrected in the latest Microsoft Exchange 4.0 U.S.
Service Pack. For information on obtaining the service pack, query on the
following word in the Microsoft Knowledge Base (without the spaces):
Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
---|
Keywords: | kbbug kbfix kbusage KB157994 |
---|
|