Data Views That Provide a Single Point of Access When Different Parts of a Subtree Are Stored in Different Data Sources

This section describes how to configure a data view that provides a single point of access to different parts of a subtree. This example contains two data views with the same base DN. A numeric distribution algorithm is used to separate entries into different data views. A data source pool is configured for each set of data-equivalent data sources. The following figure shows the example deployment.

For information about this type of deployment, see Data Views to Route Requests When Different Parts of a Subtree Are Stored in Different Data Sources in Sun Java System Directory Server Enterprise Edition 6.0 Reference.

Figure 23–3 Sample Deployment That Provides a Single Point of Access When Different Parts of a Subtree Are Stored in Different Data Sources

To Configure Data Views That Provide a Single Point of Access When Different Parts of a Subtree Are Stored in Different Data Sources

You can use DSCC to perform this task. For information, see Directory Service Control Center Interface and the DSCC online help.

1. Create a data source for each LDAP server as described in Creating and Configuring LDAP Data Sources.

2. Create two data source pools as described in Creating and Configuring LDAP Data Source Pools.

3. Attach the data sources that contain one part of the subtree to data-source-pool-1, and the data sources that contain the other part of the subtree to data-source-pool-2, as described in Attaching LDAP Data Sources to a Data Source Pool.

4. (Optional) Configure load balancing.

   For information, see Configuring Load Balancing.

5. Create a data view with a distribution algorithm to select entries in ou=people,dc=example,dc=com with uid between 0 and 99, and configure the data view to direct requests to data-source-pool-1.

   $ dpconf set-ldap-data-view-prop -h host1 -p 1389 dataview-1 \ ldap-data-source-pool:data-source-pool-1 base-dn:ou=people,dc=example,dc=com \ distribution-algorithm :numeric numeric-attrs:uid numeric-lower-bound :0 \ numeric-upper-bound :99

6. Create another data view with a distribution algorithm to select entries in ou=people,dc=example,dc=com with uid between 100 and 199, and configure the data view to direct requests to data-source-pool-2.

   $ dpconf set-ldap-data-view-prop -h host1 -p 1389 dataview-2 \ ldap-data-source-pool:data-source-pool-2 base-dn:ou=people,dc=example,dc=com \ distribution-algorithm:numeric numeric-attrs:uid numeric-lower-bound:100 numeric-upper-bound :199

   The other properties of the data views are the same as the default data view in Default Data View.

7. If necessary, restart the instance of Directory Proxy Server for the changes to take effect.

   For information about restarting Directory Proxy Server, see To Restart Directory Proxy Server.