var writeMu sync.Mutex
	for i, client := range sys.peerClients {
		if client == nil {
			continue
		}
		ng.Go(ctx, func() error {
			// Give 15 seconds to each remote call.
			// Errors are logged but not returned.
			ctx, cancel := context.WithTimeout(ctx, 15*time.Second)
			defer cancel()
			data, err := client.DownloadProfileData(ctx)
			if err != nil {

    // First CONNECT call needs a new connection.
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)

    // Second CONNECT call needs a new connection.
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)

    // GET reuses the connection from the second connect.
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(1)
  }

  @Test

		return nil, nil, err
	}

	// Wait up to 10 seconds for disks to come online.
	pools := obj.(*erasureServerPools)
	t := time.Now()
	for _, pool := range pools.serverPools {
		for _, sets := range pool.erasureDisks {
			for _, s := range sets {
				if !s.IsLocal() {
					for !s.IsOnline() {
						time.Sleep(100 * time.Millisecond)
						if time.Since(t) > 10*time.Second {

* GCE/GKE load balancer health check default interval changes from 2 seconds to 8 seconds, unhealthyThreshold to 3. ([#70099](https://github.com/kubernetes/kubernetes/pull/70099), [@grayluck](https://github.com/grayluck))
    * Health check parameters are configurable to be bigger than default values.

* API server authentication now caches successful bearer token authentication results for a few seconds. ([#50258](https://github.com/kubernetes/kubernetes/pull/50258), [@liggitt](https://github.com/liggitt))

	* A new controller for managing DNS records is introduced which can be optionally disabled to enable third party components to manage DNS records for federated services. ([#45034](https://github.com/kubernetes/kubernetes/pull/45034), [@shashidharatd](https://github.com/shashidharatd))

				iamLogIf(ctx, fmt.Errorf("Failure in periodic refresh for IAM (duration: %s): %v", time.Since(refreshStart), err), logger.WarningKind)
			} else {
				took := time.Since(refreshStart).Seconds()
				if took > maxDurationSecondsForLog {
					// Log if we took a lot of time to load.
					logger.Info("IAM refresh took (duration: %.2fs)", took)
				}
			}

			// Run purge routines once in each hour.

    connection.writePingAndAwaitPong()
    val elapsedNanos = System.nanoTime() - pingAtNanos
    assertThat(elapsedNanos).isGreaterThan(0L)
    assertThat(elapsedNanos).isLessThan(TimeUnit.SECONDS.toNanos(1))

    // Verify the peer received what was expected.
    val pingFrame = peer.takeFrame()
    assertThat(pingFrame.type).isEqualTo(Http2.TYPE_PING)
    assertThat(pingFrame.streamId).isEqualTo(0)

	}

	if createReq.Expiration != nil && !createReq.Expiration.IsZero() {
		// truncate expiration at the second.
		truncateTime := createReq.Expiration.Truncate(time.Second)
		createReq.Expiration = &truncateTime
	}

	// service account access key cannot have space characters beginning and end of the string.
	if hasSpaceBE(createReq.AccessKey) {

- Renames the timeout field for the DelegatingAuthenticationOptions to TokenRequestTimeout and set the timeout only for the token review client. Previously the timeout was also applied to watches making them reconnecting every 10 seconds. ([#101102](https://github.com/kubernetes/kubernetes/pull/101102), [@p0lyn0mial](https://github.com/p0lyn0mial)) [SIG API Machinery, Auth and Cloud Provider]