When priming occurs locally, you can avoid WAN bandwidth consumption and reduce the processing load on the directory servers in the topology. You can specify the data sources for the index priming and the order in which priming occurs from these sources. Use the prime-index-source property to specify the sources of data, either ds, file or some combination of the two.

The order you specify is the order in which priming is attempted from these sources. Priming is most efficient if the source server is on the same local network as the PingDirectoryProxy server.

For example, if you specify prime-index-source:file,ds, priming is performed from the global-index data file created from the previous run of the directory servers. If the entire global index has been primed previously from a startup or reloaded-index directory server's source, the contents of the global index are written to disk periodically with the file,ds configuration.