To Configure Operational Affinity Algorithm for Cache Optimization

For a description of this algorithm, see Operational Affinity Algorithm for Cache Optimization in Sun Java System Directory Server Enterprise Edition 6.2 Reference.

This example has three data sources. All search and compare operations are treated by the data source ds-1. When ds-1 responds to a request, the targeted entry is stored in the cache. If ds-1 responds repeatedly to the same request, the data source can use cached data.

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 operational affinity algorithm.

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

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:1 bind-weight:1 compare-weight:100 delete-weight:1 modify-dn-weight:1 \ modify-weight:1 search-weight:100

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 1 1 100 1 1 1 100 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