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OUD Replication - Using the External ChangeLog (Doc ID 1406188.1)

Last updated on APRIL 27, 2023

Applies to:

Oracle Unified Directory - Version and later
Identity Manager - Version to [Release 11g]
Information in this document applies to any platform.


The External Change Log (ECL) provides an alternate view of the replication change log.

The ECL is based on the LDAP changelog draft (Definition of an Object Class to Hold LDAP Change Records) but does not strictly support this change log.
The LDAP change log draft uses an integer as the key to browse the change log whereas the ECL uses a cookie.

The following document explains how to use the External Change Log (ECL).




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In this Document
 1)  ECL Usage Candidates
 2) External Changelog - Display Changes
 2.1) Indicate the attribute being recorded in the changelog
 2.2) Deciphering the 64 bit value
 2.3) Using ODSM
 3) Purging the ECL
 4) Using the External ChangeLog with a Client Application
 1. Retrieving the lastExternalChangeLog cookie (for the first time) for the client application
 2. Client application using lastExternal changelog cookie
 5) Result Code: 53 (Unwilling to Perform) error
 6) Advantages of the ECL cookie implementation for the client

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