Microsoft KB Archive/178053

= XADM: Store Thread's Processor Utilization Peaks Indefinitely Based on Predictable Weekly Schedule =

Article ID: 178053

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q178053





SYMPTOMS
A thread in the store indefinitely consumes a substantial percentage of processor utilization. In addition, this problem begins to occur at approximately the same time every week. If the spinning thread is viewed in a debugger, the call stack will appear similar to the following:

  035efd50 0045b208 : store!TibNext+0x34 035efd50 00459fb8 : store!REPL__EcGetNextFtSend+0xd8 035efd90 0045a0f0 : store!REPL__EcGetNextFtSendStatus+0xc8 035efdd0 0044f448 : store!REPL__EcSetFtSendStatus+0xc0 035efe10 00472670 : store!EcReplFolderMessagesSend+0x238 035efec0 0047283c : store!EcReplSendMessages+0xc0 035eff10 004713e0 : store!EcReplSendMessagesSelectedTimes+0x7c 035eff50 005258ac : store!FReplAgent+0x130 035eff80 77e6cbe8 : store!EcProcessTask+0x1bc



CAUSE
This problem only occurs when a public folder has been selected to replicate to other servers only once a week. The store's thread remains in a loop indefinitely while attempting to calculate the next instance to send a status message.



STATUS
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

Microsoft has confirmed this to be a problem in Microsoft Exchange Server versions 4.0 and 5.5.

This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 5.5. 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: 100% CPU

Keywords: kbhotfixserver kbqfe kbbug kbfix KB178053

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