public int getNumReplaceLabelsOnNodeFailedRetrieved() {
    return numReplaceLabelsOnNodeFailedRetrieved.value();
  }
@Test
  public void testReplaceLabelOnNodeRetrievedFailed() {
    long totalBadBefore = metrics.getNumReplaceLabelsOnNodeFailedRetrieved();
    badSubCluster.getReplaceLabelsOnNodeFailed();
    Assert.assertEquals(totalBadBefore + 1,
        metrics.getNumReplaceLabelsOnNodeFailedRetrieved());
  }