To prime all indexes at startup, run the dsconfig tool.
The following example configures the entry-balancing request processor so that it primes the global index from the persisted file, if present, or from an external directory server's source, if necessary.
$ bin/dsconfig set-request-processor-prop \
--processor-name dc_example_dc_com-eb-req-processor \
--set prime-all-indexes:true --set prime-index-source:file \
--set prime-index-source:ds