FIX: Delays Occur When You Send Messages to a Message Queuing Server (813035)
The information in this article applies to:
- Microsoft Message Queuing 2.0
SYMPTOMSWhen you send messages to a Microsoft Message Queuing (also known as MSMQ) server, you may experience delays if the server's connection to its domain controller is not available or is slow. CAUSEWhen you send a message to a Message Queuing server, the server must check the access control list (ACL) for the queue to see if the user who sent the message has permissions to write to this queue. If the domain controller is not available or is responding slowly, this validation process may take significant time. Message Queuing does not accept the message until the validation is complete, causing delays when you send messages.RESOLUTIONService Pack Information
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
Hotfix InformationA supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows 2000 service pack that contains this hotfix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site: Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
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15-Jan-2003 14:01 5.0.0.759 280,336 Mq1repl.dll
21-Oct-2002 17:31 5.0.0.759 14,096 Mq1sync.exe
19-Dec-2002 18:37 5.0.0.764 75,408 Mqac.sys
15-Jan-2003 14:01 5.0.0.760 217,360 Mqads.dll
30-Oct-2002 13:43 5.0.0.761 25,360 Mqbkup.exe
15-Jan-2003 14:01 5.0.0.750 76,560 Mqdscli.dll
15-Jan-2003 14:01 5.0.0.735 41,744 Mqdssrv.dll
21-Oct-2002 17:31 5.0.0.759 98,064 Mqmig.exe
15-Jan-2003 14:01 5.0.0.759 265,488 Mqmigrat.dll
15-Jan-2003 14:01 5.0.0.740 222,480 Mqoa.dll
15-Jan-2003 14:01 5.0.0.762 8,464 Mqperf.dll
15-Jan-2003 14:01 5.0.0.765 425,232 Mqqm.dll
15-Jan-2003 14:01 5.0.0.765 102,672 Mqrt.dll
15-Jan-2003 14:01 5.0.0.759 70,928 Mqsec.dll
15-Jan-2003 14:01 5.0.0.762 23,824 Mqupgrd.dll
15-Jan-2003 14:01 5.0.0.763 110,352 Mqutil.dll
15-Jan-2003 14:01 5.0.0.748 64,784 Msmq.cpl STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article. This problem was first corrected in Windows 2000 Service Pack 4.MORE INFORMATIONBy default, Message Queuing grants Send permissions to the Everyone group on all newly created queues. As a result, this problem may or may not show up, depending on where the access control entry (ACE) for the Everyone Send permission appears in the queue's ACL. If this ACE is at the top of the ACL, Message Queuing sees it immediately and accepts the message without delay. If the ACE is farther down in the ACL, Message Queuing connects to the domain controller to check the ACEs farther up in the ACL before it reaches the Everyone Send ACE. This delays the acceptance of the message when the domain controller is slow or is not available. The order of ACEs in the ACL is random and does not necessarily correspond to how they are listed on the Security tab of the queue's property sheet.
This hotfix resolves this problem by requiring Message Queuing to check the whole ACL for an Everyone Send ACE first. If Message Queuing finds this ACE, it accepts the message immediately without trying to communicate with the domain controller at all. If Message Queuing does not find this ACE, it connects to the domain controller to check all the ACEs.
Modification Type: | Minor | Last Reviewed: | 10/11/2005 |
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Keywords: | kbHotfixServer kbQFE kbfix KB813035 kbAudDeveloper |
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