@Test
  public void testComparisonQuickFailureDetection() {
    long[] interval = new long[] {sec, sec, sec};
    List<AbstractHeartbeatSample> history = fromInterval(interval, 13 * sec);
    Assert.assertTrue(fixedDetector.isAvailable(id, history));
    Assert.assertFalse(phiAccrualDetector.isAvailable(id, history));
  }
When a node hasn't responded with interval longer than accepted GC pause Phi Accrual can detect
the problem quicker than Fix In this case, the accepted pause is 10s, but we haven't received
heartbeats for 13s
iotdb-core/confignode/src/test/java/org/apache/iotdb/confignode/manager/load/cache/detector/DetectorTest.java