To synchronize each of the node-specific, in-memory caches of
    channel counters with the cluster-wide database, issue a PMDF
    COUNTERS/SYNCHRONIZE command. The command will not return control
    back to you until all the caches have been synchronized. The
    PMDF COUNTERS/SYNCHRONIZE command signals each PMDF counters
    synchronization process in the cluster-there should be one
    such process on each node running PMDF. Note that on each node,
    the synchronization can only be performed if the PMDF counters
    synchronization process is running on that node.

    Assuming that the PMDF counters synchronization process is
    running on each node, then for each node the node-specific, in-
    memory cache will be created, if it does not already exist. If
    the cluster-wide, on-disk database does not exist, it will be
    created. The in-memory cache values will be used to update the
    on-disk database, and then the on-disk database values for stored
    messages, recipients, and volume will be set by scanning the PMDF
    queue cache database.