Microsoft KB Archive/313065

= Hotfix to Increase Performance of Directory Service Queries in Large Domains =

Article ID: 313065

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 2

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This article was previously published under Q313065



SYMPTOMS
On a heavily loaded domain controller that is a member of a large domain, you may experience intermittent delays in Kerberos-related operations, such as cross-domain authentication.



CAUSE
This is primarily a performance issue that occurs because the Directory Service uses the objectClass table to perform Active Directory queries. Because this is not an indexed table, Active Directory queries are less efficient than if they use an indexed table.

This issue is most noticeable in a large domain and on a heavily loaded domain controller, because the domain controller may put a write lock on the trusted domain list, causing Kerberos work-related threads to become backlogged.



RESOLUTION
To resolve this problem, obtain the latest service pack for 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

The English-language version of this fix should have the following file attributes or later:

  Date         Time   Version           Size     File name ---  27-Nov-2001  01:10  5.0.2195.4600     123,664  Adsldp.dll 27-Nov-2001 01:10  5.0.2195.4628     130,320  Adsldpc.dll 27-Nov-2001 01:10  5.0.2195.4016      62,736  Adsmsext.dll 27-Nov-2001 01:09  5.0.2195.4653     356,112  Advapi32.dll 27-Nov-2001 01:10  5.0.2195.4571      82,704  Cmnquery.dll 27-Nov-2001 01:09  5.0.2195.4141     133,904  Dnsapi.dll 27-Nov-2001 01:10  5.0.2195.4379      91,408  Dnsrslvr.dll 27-Nov-2001 01:10  5.0.2195.4534      41,744  Dsfolder.dll 27-Nov-2001 01:10  5.0.2195.4534     156,944  Dsquery.dll 27-Nov-2001 01:10  5.0.2195.4574     110,352  Dsuiext.dll 27-Nov-2001 01:37  5.0.2195.4682     521,488  Instlsa5.dll 27-Nov-2001 01:10  5.0.2195.4630     145,680  Kdcsvc.dll 27-Nov-2001 00:33  5.0.2195.4680     199,440  Kerberos.dll 04-Sep-2001 16:32  5.0.2195.4276      71,024  Ksecdd.sys 27-Nov-2001 00:51  5.0.2195.4682     503,568  Lsasrv.dll 27-Nov-2001 00:52  5.0.2195.4682      33,552  Lsass.exe 27-Nov-2001 00:32  5.0.2195.4680     107,280  Msv1_0.dll 27-Nov-2001 01:10  5.0.2195.4594     306,960  Netapi32.dll 27-Nov-2001 01:10  5.0.2195.4603     358,672  Netlogon.dll 27-Nov-2001 01:10  5.0.2195.4650     913,168  Ntdsa.dll 27-Nov-2001 01:10  5.0.2195.4627     387,856  Samsrv.dll 27-Nov-2001 01:10  5.0.2195.4583     128,784  Scecli.dll 27-Nov-2001 01:10  5.0.2195.4600     299,792  Scesrv.dll 27-Nov-2001 01:10  5.0.2195.4600      48,400  W32time.dll 06-Nov-2001 19:43  5.0.2195.4600      56,592  W32tm.exe 27-Nov-2001 01:09  5.0.2195.4600     125,712  Wldap32.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.



MORE INFORMATION
This update changes Active Directory query logic to perform the same search by using objectCategory (an indexed table) instead of the objectClass attribute, therefore increasing the search speed by several orders of magnitude.

Additional query words:

Keywords: kbbug kbfix kbwin2000presp3fix kbqfe kbwin2000sp3fix kbsecurity kbhotfixserver KB313065

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