@Override
  public void close() throws IOException {
    Closeables.close(connection, true);
  }
Generate the assignment plan for the existing table
@param munkresForSecondaryAndTertiary if set on true the assignment plan for the tertiary and
                                      secondary will be generated with Munkres algorithm,
                                      otherwise will be generated using
                                      placeSecondaryAndTertiaryRS
hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionPlacementMaintainer.java