To Configure the Proportional Algorithm for Load Balancing

For a description of the proportional algorithm, see Proportional Algorithm for Load Balancing in Sun Java System Directory Server Enterprise Edition 6.2 Reference.

In this example, the data source ds–1 is configured with twice the weight of the other two data sources.

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

Before You Begin

Ensure that you have a data source pool with at least three attached data sources. For information about how to create data sources and data source pools, see Chapter 20, LDAP Data Sources and Data Source Pools.

1. Configure the data source pool to use the proportional algorithm for load balancing.

   $ dpconf set-ldap-data-source-pool-prop -h host -p port pool-name \ load-balancing-algorithm:proportional

2. Configure the properties of the first data source.

   $ dpconf set-attached-ldap-data-source-prop -h host -p port pool-name ds-1 \ add-weight:2 bind-weight:2 compare-weight:2 delete-weight:2 modify-dn-weight:2 \ modify-weight:2 search-weight:2

3. Configure the properties of the second data source.

   $ dpconf set-attached-ldap-data-source-prop -h host -p port pool-name ds-2 \ add-weight:1 bind-weight:1 compare-weight:1 delete-weight:1 modify-dn-weight:1 \ modify-weight:1 search-weight:1

4. Configure the properties of the third data source.

   $ dpconf set-attached-ldap-data-source-prop -h host -p port pool-name ds-3 \ add-weight:1 bind-weight:1 compare-weight:1 delete-weight:1 modify-dn-weight:1 \ modify-weight:1 search-weight:1

5. Compare the key parameters of the attached data sources.

   $ dpconf list-attached-ldap-data-sources -h host -p port -v pool-name Name add-weight bind-weight compare-weight delete-weight modify-dn-weight modify-weight search-weight --- ---------- ----------- -------------- ------------- ---------------- ------------- ------------- ds-1 2 2 2 2 2 2 2 ds-2 1 1 1 1 1 1 1 ds-3 1 1 1 1 1 1 1

6. Restart the instance of Directory Proxy Server.

   $ dpadm restart instance-path