@Override
    protected void process(DistributionMessage message, boolean warn) {
      if (message instanceof MissingPersistentIDsResponse) {
        missing.addAll(((MissingPersistentIDsResponse) message).getMissingIds());
        existing.addAll(((MissingPersistentIDsResponse) message).getLocalIds());
      }
      super.process(message, warn);
    }
A request to all members for any persistent members that they are waiting for.
This extends AdminRequest, but it doesn't work with most of the admin paradigm, which is a
request response to a single member. Maybe we need to a new base class.
geode-core/src/main/java/org/apache/geode/internal/admin/remote/MissingPersistentIDsRequest.java