@BeforeClass
  public static void provisionCluster() throws Exception {
    conf = util.getConfiguration();
    SUPERUSER = User.createUserForTesting(conf, "admin", new String[] { "supergroup" });
    conf.set("hbase.superuser", "admin," + User.getCurrent().getName());
    VisibilityTestUtil.enableVisiblityLabels(conf);
    conf.setClass(VisibilityUtils.VISIBILITY_LABEL_GENERATOR_CLASS, SimpleScanLabelGenerator.class,
      ScanLabelGenerator.class);
    util.startMiniCluster();
    // Wait for the labels table to become available
    util.waitTableEnabled(VisibilityConstants.LABELS_TABLE_NAME.getName(), 50000);
    createLabels();
  }
Force use of combiner in doMROnTableTest. Boolean. Default is true.
hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestImportTSVWithVisibilityLabels.java