DOCUMENT:Q151992 27-MAR-1999 [exchange] TITLE :XADM: Simultaneous Move User Operations Freeze PRODUCT :Microsoft Exchange PROD/VER:winnt:4.0,5.0 OPER/SYS: KEYWORDS:kbusage ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 4.0, 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== The Microsoft Exchange Administrator program may stop responding during a Move User operation. The progress indicator may stop moving and the Administrator program stop responding. Another instance of the Administrator program will also fail to complete the Move User operation. Attempts to stop the Store service will often fail when this problem occurs. No related events appear in the event logs. CAUSE ===== These symptoms occur when multiple Move User operations are run simultaneously. While the error is seen in the Administrator program, the actual error has occurred in the Store process on the server. Move User threads in the store become deadlocked and none can proceed. WORKAROUND ========== To work around this problem: - Run only a single instance of the Move User operation. STATUS ====== Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 4.0. This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 4.0. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0. This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 5.0. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K Additional query words: hang crash slow down deadlock lock ====================================================================== Keywords : kbusage Technology : kbExchangeSearch kbExchange500 kbExchange400 kbZNotKeyword2 Version : winnt:4.0,5.0 Issue type : kbbug ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.