@VisibleForTesting
  public int getContainerReportFailedRetrieved() {
    return numGetContainerReportFailedRetrieved.value();
  }
@Test
  public void testGetContainerReportFailed() {
    long totalBadBefore = metrics.getContainerReportFailedRetrieved();
    badSubCluster.getContainerReport();
    Assert.assertEquals(totalBadBefore + 1, metrics.getContainerReportFailedRetrieved());
  }