@Override
  public int getDSFID() {
    return MISSING_PERSISTENT_IDS_REQUEST;
  }
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