final String type = fessConfig.getCrawlerHotthreadType();
        try {
            final SearchEngineClient esClient = ComponentUtil.getSearchEngineClient();
            final NodesHotThreadsResponse response = esClient.admin()
                    .cluster()
                    .prepareNodesHotThreads()
                    .setIgnoreIdleThreads(ignoreIdleThreads)

    assertEquals(
        "The mean of x and y should equal the mean of y and x", expectedMean, IntMath.mean(y, x));
  }

  /**
   * Computes the mean in a way that is obvious and resilient to overflow by using BigInteger
   * arithmetic.
   */
  private static int computeMeanSafely(int x, int y) {
    BigInteger bigX = BigInteger.valueOf(x);
    BigInteger bigY = BigInteger.valueOf(y);

    assertEquals(
        "The mean of x and y should equal the mean of y and x", expectedMean, LongMath.mean(y, x));
  }

  /**
   * Computes the mean in a way that is obvious and resilient to overflow by using BigInteger
   * arithmetic.
   */
  private static long computeMeanSafely(long x, long y) {
    BigInteger bigX = BigInteger.valueOf(x);
    BigInteger bigY = BigInteger.valueOf(y);

  static boolean fitsInInt(long x) {
    return (int) x == x;
  }

  /**
   * Returns the arithmetic mean of {@code x} and {@code y}, rounded toward negative infinity. This
   * method is resilient to overflow.
   *
   * @since 14.0
   */
  public static long mean(long x, long y) {
    // Efficient method for computing the arithmetic mean.
    // The alternative (x + y) / 2 fails for large values.

- Apiserver repair controller is resilient to etcd errors during bootstrap and retries during 30 seconds before failing. ([#126671](https://github.com/kubernetes/kubernetes/pull/126671), [@fusida](https://github.com/fusida)) [SIG Network]