@VisibleForTesting
  public int getUpdateApplicationTimeoutsFailedRetrieved() {
    return numUpdateAppTimeoutsFailedRetrieved.value();
  }
@Test
  public void testUpdateAppTimeoutsFailed() {
    long totalBadBefore = metrics.getUpdateApplicationTimeoutsFailedRetrieved();
    badSubCluster.getUpdateApplicationTimeouts();
    Assert.assertEquals(totalBadBefore + 1,
        metrics.getUpdateApplicationTimeoutsFailedRetrieved());
  }