Red Hat Directory Server 8.0 Administrator's Guide

5. Click Save.
6. Now configure legacy consumer settings for each replica that will receive updates from a
legacy supplier.
a. In the navigation tree, expand the Replication node, and select a replica that will receive
updates from the legacy supplier.
b. In the Replica Settings tab, select the Enable Replica and Updatable by a 4.x Replica
checkboxes.
These options are the only ones required for replication to work. Optionally, specify a
replica ID. It is not necessary to specify a supplier DN because the one specified in step 4
will be used.
c. Click Save.
7. Repeat step 6 for each read-only replica that will receive updates from a legacy supplier.
8. To complete the legacy replication setup, configure the legacy supplier to replicate to the
Directory Server 8.0 instance. For instructions on configuring a replication agreement on a
4.x Directory Server, refer to the documentation for the legacy Directory Server.
NOTE
The Directory Server Console will not prevent you from configuring a database
as a read-write replica and enabling legacy consumer settings. This makes
migration easier because the Directory Server can be configured as it should be
after the migration and legacy consumer settings only have to be active for the
duration of the transition.
16. Using the Retro Changelog Plug-in
The Retro Changelog plug-in configures Directory Server to maintain a changelog that is
compatible with the changelog implemented in Directory Server 4.0, 4.1, and 4.1x. Maintaining a
retro changelog is essential to maintain a changelog for directory clients that depend on a
Directory Server 4.x-style changelog.
To use the retro changelog plug-in, the Directory Server 8.0 instance must be configured as a
single-master replica.
When the Directory Server is configured to maintain a retro changelog, this changelog is stored
in a separate database under a special suffix, cn=changelog.
The retro changelog consists of a single level of entries. Each entry in the changelog has the
object class changeLogEntry and can include the attributes listed in Table 8.5, “Attributes of a
Chapter 8. Managing Replication
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