}
				cancel()
				sys.hMutex.Lock()
				sys.hc = m
				sys.hMutex.Unlock()
			}
			hcTimer.Reset(defaultHealthCheckDuration)
		case <-ctx.Done():
			return
		}
	}
}

// periodically rebuild the healthCheck map from list of targets to clear
// out stale endpoints
func (sys *BucketTargetSys) reloadHealthCheckers(ctx context.Context) {
	m := make(map[string]epHealth)
	tgts := sys.ListTargets(ctx, "", "")

func (z *erasureServerPools) rebalanceBuckets(ctx context.Context, poolIdx int) (err error) {
	doneCh := make(chan error, 1)
	defer xioutil.SafeClose(doneCh)

	// Save rebalance.bin periodically.
	go func() {
		// Update rebalance.bin periodically once every 5-10s, chosen randomly
		// to avoid multiple pool leaders herding to update around the same
		// time.
		r := rand.New(rand.NewSource(time.Now().UnixNano()))

   * multiple multisets in series.
   *
   * @since 12.0
   */
  public static class Builder<E> extends ImmutableMultiset.Builder<E> {
    /*
     * We keep an array of elements and counts.  Periodically -- when we need more room in the
     * array, or when we're building, or the like -- we sort, deduplicate, and combine the counts.
     * Negative counts indicate a setCount operation with ~counts[i].
     */

- `install-cni` container
    - copies `istio-cni` and `istio-iptables` to `/opt/cni/bin`
    - creates kubeconfig for the service account the pod runs under
    - periodically copy the K8S JWT token for istio-cni on the host to connect to K8S.
    - injects the CNI plugin config to the CNI config file

	}

	var maxDurationSecondsForLog float64 = 5
	timer := time.NewTimer(waitInterval())
	defer timer.Stop()

	for {
		select {
		case <-timer.C:
			// Load all IAM items (except STS creds) periodically.
			refreshStart := time.Now()
			if err := sys.Load(ctx, false); err != nil {
				iamLogIf(ctx, fmt.Errorf("Failure in periodic refresh for IAM (took %.2fs): %v", time.Since(refreshStart).Seconds(), err), logger.WarningKind)