func (t *tierMetrics) logSuccess(tier string) {
	t.Lock()
	defer t.Unlock()

	stat := t.requestsCount[tier]
	stat.success++
	t.requestsCount[tier] = stat
}

func (t *tierMetrics) logFailure(tier string) {
	t.Lock()
	defer t.Unlock()

	stat := t.requestsCount[tier]
	stat.failure++
	t.requestsCount[tier] = stat
}

var (
	// {minio_node}_{tier}_{ttlb_seconds_distribution}

    println("\n\nRequest to ${server1.socketAddress}")
    executeSynchronously(request)
      .assertSuccessful()
      .assertCode(200)

    println("server1.requestCount ${server1.requestCount}")
    assertThat(server1.requestCount).isEqualTo(1)

    // Close the proxy server
    if (cleanClose) {
      server1.close()
    }

    // Now redirect with DNS to proxyServer2

   * missRate =~ 1.0}.
   */
  public double hitRate() {
    long requestCount = requestCount();
    return (requestCount == 0) ? 1.0 : (double) hitCount / requestCount;
  }

  /**
   * Returns the number of times {@link Cache} lookup methods have returned an uncached (newly
   * loaded) value, or null. Multiple concurrent calls to {@link Cache} lookup methods on an absent

   * missRate =~ 1.0}.
   */
  public double hitRate() {
    long requestCount = requestCount();
    return (requestCount == 0) ? 1.0 : (double) hitCount / requestCount;
  }

  /**
   * Returns the number of times {@link Cache} lookup methods have returned an uncached (newly
   * loaded) value, or null. Multiple concurrent calls to {@link Cache} lookup methods on an absent

        final ResponseData response = client.execute(RequestDataBuilder.newRequestData().get().url(url).build());
        assertEquals(1, testListener.startCount);
        assertEquals(1, testListener.requestCount);
        assertEquals(0, testListener.exceptionCount);
        assertEquals(1, testListener.endCount);
        assertEquals(url, testListener.requestUrl);

            }

            public synchronized void recordFailure() {
                requestCount++;
                failureCount++;
                lastUpdateTime = System.currentTimeMillis();
            }

            public synchronized void reset(long timestamp) {
                requestCount = 0;
                failureCount = 0;
                totalResponseTime = 0;

    assertThat(cache.stats()).isEqualTo(EMPTY_STATS);

    Object one = new Object();
    cache.getUnchecked(one);
    CacheStats stats = cache.stats();
    assertThat(stats.requestCount()).isEqualTo(1);
    assertThat(stats.hitCount()).isEqualTo(0);
    assertThat(stats.hitRate()).isEqualTo(0.0);
    assertThat(stats.missCount()).isEqualTo(1);
    assertThat(stats.missRate()).isEqualTo(1.0);

    hitCount++
  }

  @Synchronized fun networkCount(): Int = networkCount

  @Synchronized fun hitCount(): Int = hitCount

  @Synchronized fun requestCount(): Int = requestCount

  private inner class RealCacheRequest(
    private val editor: DiskLruCache.Editor,
  ) : CacheRequest {
    private val cacheOut: Sink = editor.newSink(ENTRY_BODY)
    private val body: Sink

    cache.flush()
    cache.close()
    val directory: File = cache.directory
    val networkCount: Int = cache.networkCount()
    val hitCount: Int = cache.hitCount()
    val requestCount: Int = cache.requestCount()
  }

  @Test
  fun cacheControl() {
    val cacheControl: CacheControl = CacheControl.Builder().build()
    val noCache: Boolean = cacheControl.noCache

        ),
      )

    assertFailsWith<IOException> {
      callA.execute()
    }.also { expected ->
      assertThat(expected).hasMessage("boom")
    }

    assertThat(server.requestCount).isEqualTo(0)

    // Confirm that the connection pool was not corrupted by making another call. This doesn't use
    // makeSimpleCall() because it uses the MockResponse enqueued above.