//
// STS accounts are replicated, but only if the session token is verifiable
// using the local cluster's root credential.
func (c *SiteReplicationSys) IAMChangeHook(ctx context.Context, item madmin.SRIAMItem) error {
	// The IAM item has already been applied to the local cluster at this
	// point, and only needs to be updated on all remote peer clusters.

	c.RLock()
	defer c.RUnlock()
	if !c.enabled {
		return nil
	}

 * Enumeration of SMB Witness Service types as defined in MS-SWN specification.
 * These types represent different categories of witness services available in
 * clustered file server environments.
 */
public enum WitnessServiceType {
    /**
     * Cluster-aware witness service for general cluster resources
     */
    CLUSTER_WITNESS,

    /**
     * Individual file server witness for standalone servers
     */
    FILE_SERVER_WITNESS,

		poolIDL, setIDL)
)

func b2f(v bool) float64 {
	if v {
		return 1
	}
	return 0
}

// loadClusterErasureSetMetrics - `MetricsLoaderFn` for cluster storage erasure
// set metrics.
func loadClusterErasureSetMetrics(ctx context.Context, m MetricValues, c *metricsCache) error {
	result, _ := c.esetHealthResult.Get()

	syncSuccessesMD                          = NewCounterMD(syncSuccesses, "Number of successful IAM data syncs since server start.")
)

// loadClusterIAMMetrics - `MetricsLoaderFn` for cluster IAM metrics.
func loadClusterIAMMetrics(_ context.Context, m MetricValues, _ *metricsCache) error {
	m.Set(lastSyncDurationMillis, float64(atomic.LoadUint64(&globalIAMSys.LastRefreshDurationMilliseconds)))

)

// loadClusterNotificationMetrics - `MetricsLoaderFn` for cluster notification metrics.
func loadClusterNotificationMetrics(_ context.Context, m MetricValues, _ *metricsCache) error {
	if globalEventNotifier == nil {
		return nil
	}

	nstats := globalEventNotifier.targetList.Stats()

```
KEY:
etcd  federate multiple clusters for IAM and Bucket DNS

ARGS:
endpoints*       (csv)       comma separated list of etcd endpoints e.g. "http://localhost:2379"

- Services will now have a `clusterIPs` field to go with `clusterIP`.  `clusterIPs[0]` is a synonym for `clusterIP` and will be synchronized on create and update operations. ([#95894](https://github.com/kubernetes/kubernetes/pull/95894), [@thockin](https://github.com/thockin))...

- **Cluster Lifecycle**
  - [alpha] Improved UX and usability for the kubeadm binary that makes it easy to get a new cluster running. ([docs](http://kubernetes.io/docs/getting-started-guides/kubeadm/)) ([changelog](https://github.com/kubernetes/kubeadm/blob/master/CHANGELOG.md)) ([kubernetes/features#11](https://github.com/kubernetes/enhancements/issues/11))
- **Cluster Ops**

- **Cluster Federation**
  - Global Multi-cluster HTTP(S) Ingress across GCE and GKE clusters.
  - Expanded support for federated hybrid-cloud resources including ReplicaSets, Secrets, Namespaces and Events.
- **Security**
  - Increased pod-level security granularity (eg: Container Image Policies, AppArmor and `sysctl` support)
  - Increased cluster-level security granularity (eg: Access Review API)

- Update read/write operations for RDMA

---

### Phase 6: Witness Protocol
**Priority: LOW** | **Estimated Effort: 4-5 weeks**

Witness protocol enables rapid failover notification for clustered file servers.

#### 6.1 Core Witness Infrastructure
```
Package: jcifs.internal.witness
├── WitnessClient.java           - Witness client implementation