b, err = handler(m.Payload)
			if debugPrint {
				fmt.Println(c.Local, "Handler returned payload:", bytesOrLength(b), "err:", err)
			}
		}()

		if m.DeadlineMS > 0 && time.Since(start).Milliseconds()+c.addDeadline.Milliseconds() > int64(m.DeadlineMS) {
			if debugReqs {
				fmt.Println(m.MuxID, c.StringReverse(), "DEADLINE EXCEEDED")
			}
			// No need to return result
			PutByteBuffer(b)
			return
		}

         */
        public void setLength(int length) {
            this.length = length;
        }

        /**
         * Get the notification timestamp
         *
         * @return timestamp in milliseconds
         */
        public long getTimestamp() {
            return timestamp;
        }

        /**
         * Sets the notification timestamp.
         *

	if !compareSignatureV4(req.Form.Get(xhttp.AmzSignature), newSignature) {
		return ErrSignatureDoesNotMatch
	}

	r.Header.Set("x-amz-signature-age", strconv.FormatInt(UTCNow().Sub(pSignValues.Date).Milliseconds(), 10))

	return ErrNone
}

// doesSignatureMatch - Verify authorization header with calculated header in accordance with
//   - http://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html

        // Initially not expired
        assertFalse(auth.isExpired());

        // Set short TTL
        auth.setAuthenticationTTL(100); // 100 milliseconds
        assertEquals(100, auth.getAuthenticationTTL());

        // Still not expired immediately
        assertFalse(auth.isExpired());

        // Wait for expiration
        Thread.sleep(150);

     */
    @Resource
    protected volatile FesenClient fesenClient;

    /**
     * Index name.
     */
    protected String index;

    /**
     * Scroll timeout in milliseconds.
     */
    protected int scrollTimeout = 60000;

    /**
     * Scroll size for search requests.
     */
    protected int scrollSize = 100;

    /**
     * Buffer size for bulk operations.

        public TimeOfDayInfo() {
        }

        /**
         * The time elapsed since 00:00:00, January 1, 1970 GMT.
         */
        public int elapsedt;
        /**
         * The number of milliseconds from the start of the current second.
         */
        public int msecs;
        /**
         * The current hour (0-23).
         */
        public int hours;
        /**

    val response1 = getResponse(newRequest("/a"))
    response1.body
      .source()
      .timeout()
      .timeout(100, TimeUnit.MILLISECONDS)
    assertContent("This connection won't pool properly", response1)
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)

        }
    }

    private void startHealthCheckTask() {
        healthCheckExecutor.scheduleWithFixedDelay(this::performHealthCheck, healthCheckInterval, healthCheckInterval,
                TimeUnit.MILLISECONDS);
    }

    private void performHealthCheck() {
        log.debug("Performing multi-channel health check");

        for (ChannelGroup channelGroup : sessionChannels.values()) {

    peer.play()

    // Play it back.
    val connection = connect(peer)
    val stream = connection.newStream(headerEntries("b", "banana"), false)
    stream.readTimeout().timeout(500, TimeUnit.MILLISECONDS)
    val startNanos = System.nanoTime()
    assertFailsWith<InterruptedIOException> {
      stream.takeHeaders()
    }
    val elapsedNanos = System.nanoTime() - startNanos
    awaitWatchdogIdle()

maximum concurrent requests allowed before we start slowing things down can be configured with `mc admin config set alias/ heal max_io=30` . By default the wait delay is `250ms` beyond 100 concurrent operations. This means the healer will sleep *250 milliseconds* at max for each heal operation if there are more than *100* concurrent client requests.

In most setups this is sufficient to heal the content after drive replacements. Setting `max_sleep` to a *lower* value and setting `max_io` to a...