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Oracle Fusion Middleware Administration Guide for Oracle Unified Directory 11g Release 1 (11.1.1) |
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Oracle Fusion Middleware Administration Guide for Oracle Unified Directory 11g Release 1 (11.1.1) |
1. Starting and Stopping the Server
2. Configuring the Server Instance
3. Configuring the Proxy Components
4. Configuring Security Between Clients and Servers
5. Configuring Security Between the Proxy and the Data Source
6. Managing Oracle Unified Directory With Oracle Directory Services Manager
Configuring Data Replication With dsreplication
To Enable Replication Between Two Servers
To Initialize a Replicated Server
To Initialize an Entire Topology
To Obtain the Status of a Replicated Topology
To Merge Two Existing Replicated Topologies
To Disable Replication For a Specific Replication Domain
Configuring Large Replication Topologies
To Configure a Dedicated Replication Server
Modifying the Replication Configuration With dsconfig
Retrieving the Replication Domain Name
Changing the Replication Purge Delay
How Replication Changes Are Purged
To Change the Replication Purge Delay
Changing the Initialization Window Size
To Change the Initialization Window Size
Changing the Heartbeat Interval
To Change the Heartbeat Interval
To Change the Isolation Policy
Configuring Encrypted Replication
To Configure Encrypted Replication
Configuring Replication Groups
To Configure a Replication Group
Configuring Assured Replication
To Configure Assured Replication in Safe Data Mode
To Configure Assured Replication in Safe Read Mode
Configuring Fractional Replication
To Configure Exclusive Fractional Replication
To Configure Inclusive Fractional Replication
To Configure and Initialize a Fractional Domain
Configuring Replication Status
To Configure the Degraded Status Threshold
Configuring the Replication Server Weight
Initializing a Replicated Server With Data
Initializing a Single Replicated Server
Initializing a New Replicated Topology
Adding a Directory Server to an Existing Replicated Topology
Changing the Data Set in an Existing Replicated Topology
To Change the Data Set With import-ldif or Binary Copy
Appending Data in an Existing Replicated Topology
Enabling the External Change Log in Oracle Unified Directory
How a Client Application Uses the External Change Log in Cookie Mode
Format of External Change Log Entries
To Specify the Attributes to be Included in the External Change Log
Initializing Client Applications to Use the External Change Log
To Initialize a Client Application to Use the External Change Log
Reinitializing a Client Application When a Domain is Added
Reinitializing a Client Application When a Domain is Removed or Disabled
Controlling Access to the External Change Log
Purging the External Change Log
To Disable the External Change Log for a Domain
Configuring Schema Replication
To Specify That Schema Should Not Be Replicated
Replicating to a Read-Only Server
To Configure a Replica as Read-Only
Detecting and Resolving Replication Inconsistencies
Types of Replication Inconsistencies
Purging Historical Replication Data
Deployment Scenarios for Isolated Replicas
Using Isolated Replicas in a DMZ
Using Isolated Replicas for Testing
Replicating Between Oracle Directory Server Enterprise Edition and Oracle Unified Directory
To Migrate the Oracle Directory Server Enterprise Edition Schema and Configuration
To Initialize the Oracle Unified Directory with Oracle Directory Server Enterprise Edition Data
10. Managing Users and Groups With dsconfig
11. Managing Password Policies
Replication enables copies of identical data to be available across multiple servers. The directory server uses a multi-master replication model, which means that all the directory servers within a replication topology can accept read and write operations.
The multi-master replication model is loosely consistent by default. This means that changes made on one server are replayed asynchronously to the other servers in the topology. The same entries can be modified simultaneously on different servers. When updates are sent between the two servers, any conflicting changes must be resolved. Various attributes of a WAN, such as latency, can increase the chance of replication conflicts. Conflict resolution generally occurs automatically. A number of conflict rules determine which change takes precedence. In some cases conflicts must be resolved manually.
Note - In certain deployment scenarios, the default loose consistency model might not be adequate. In these situations, you can configure replication to function in assured mode. For more information, see Configuring Assured Replication.
Replication always occurs over a secure connection. Both parties of a replication session must authenticate to the other using SSL certificates. No access control or privileges are enforced. The following sections describe how to configure replication in the directory server.
For information about the mechanics of the replication process see Chapter 5, Directory Server Replication, in Oracle Fusion Middleware Architecture Reference for Oracle Unified Directory.
This chapter covers the following topics:
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