In an entry-balancing configuration, the Directory Proxy Server maintains the default relative distinguished name (RDN) index as well as one or more in-memory global attribute indexes.
The global indexes allow the Directory Proxy Server to select the correct backend server set for incoming operations, which avoids broadcasting operations to all backend sets.
The indexes can be preloaded from peer proxies or the backend directory servers when the server starts up and are updated by certain operations that come through the Directory Proxy Server. For example, when a new entry is added, the distinguished name (DN) of the new entry is added to the DN index of the Directory Proxy Server performing the operation. The indexes are also fault-tolerant and can adapt to changes made in the backend servers without going through the Directory Proxy Server. For example, operations are processed directly through the backend server.
This section describes:
- When to create a global attribute index
- How to reload the global index
- How to monitor the global index growth
- How to prime the global index from a peer at start-up