Configuring Cascading Replication - Red Hat DIRECTORY SERVER 7.1 - ADMINISTRATOR Administrator's Manual

NOTE
The two attributes are designed so that the
interval will always be at least 1 second longer than the interval specified for
nsds5ReplicaBusyWaitTime
chance to gain consumer access before the previous supplier can re-access the
consumer.
• If either attribute is specified but not both,
set automatically to 1 second more than
• If both attributes are specified, but
than or equal to
nsds5ReplicaSessionPauseTime
nsds5ReplicaBusyWaitTime
If Directory Server has to automatically reset the value of
nsds5ReplicaSessionPauseTime
change is not visible to clients, and it not saved to the configuration file. From an
external viewpoint, the attribute value appears as originally set.
Replica busy errors are no longer logged by default because they are usually
benign. If you want to see them, turn on the replication error log level.

Configuring Cascading Replication

This section provides information on setting up cascading replication. The steps
described in this section provide a high-level overview of the procedures you need
to follow, and cross-references to the detailed task descriptions are provided at
each step.
To set up cascading replication such as the configuration shown in Figure 8-4, on
page 311, between the supplier on Server A, which holds a read-write replica; the
consumer/supplier on hub Server B, which holds a read-only replica; and the
consumer on Server C, which holds a read-only replica, you need to perform the
following procedures:
• Configuring the Read-Only Replica on the Consumer Server
• Configuring the Read-Only Replica on the Hub Supplier
If you set either attribute to a negative value, Directory Server
sends the client a message and an
error code.
. The longer interval gives waiting suppliers a better
nsds5ReplicaBusyWaitTime
.
, the value is changed internally only. The
LDAP_UNWILLING_TO_PERFORM
nsds5ReplicaSessionPauseTime
nsds5ReplicaSessionPauseTime
nsds5ReplicaBusyWaitTime
nsds5ReplicaSessionPauseTime
,
is set automatically to 1 second more than
Chapter 8
Configuring Cascading Replication
is
.
is less
Managing Replication 337