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        A Quick Tip To Change KCC Interval

Section(s): Active Directory , Admin , Active Directory
Published on Mar 02, 2011.
Last Modified on Jan 09, 2010.
Last Modified by Nirmal Sharma.
Rating: Not Rated

This article explains how you can change the KCC Interval on Windows Domain Controllers.

KCC (Knowledge Consistency Checker) component builds/checks the Replication Topology every 15 minutes. This Active Directory component runs on every domain controller to check changes in the sites and then builds the Replication Topology. In a large environment, the KCC may take some time to evaluate the Replication Topology. Thus, it may decrease performance on the domain controllers. You can increase the KCC Interval by specifying the below mentioned registry entry and setting a value as per your requirement.

KEY Name: HKLM\System\CurrentControlSet\Services\NTDS\Parameters
Entry Name: Repl topology update period (secs)
Type: REG_DWORD
Value: 0x384 (this is the default value)

You can change the default value to ox890 or higher so that KCC invokes at the defined interval to re-evalaute the Replication Topology.

About Nirmal Sharma

Nirmal is a Microsoft MVP in Directory Services and working as a Technical Architect/Consultant. He has been involved in Microsoft Technologies since 1994 and followed the progression of Microsoft Operating Systems and software. He is specialized in Directory Services, Microsoft Clustering, SQL, MOM, Exchange and Citrix. In his spare time, he likes to help others and write "internal" technical articles, white papers and tips on various Microsoft technologies. You can contact him at nirmal_sharma@mvps.org.