Description

   The CACHE/SYNCHRONIZE utility updates the active queue cache
   database by updating it to reflect all non-held message files
   currently present in the PMDF_QUEUE:[*] subdirectories.

   The PMDF CACHE/CLOSE command does not need to be issued in
   conjunction with the PMDF CACHE/SYNCHRONIZE command.

   The queue cache database is the file pointed at by the PMDF_
   QUEUE_CACHE_DATABASE logical. Normally, this is the file QUEUE_
   CACHE.DAT in the PMDF_TABLE: directory. This file should be
   protected against world and group access and be owned by the same
   UIC as the directory files QUEUE.DIR and LOG.DIR in the PMDF_
   ROOT: directory.