`,
		Example: `  # Retrieve sync status for all Envoys in a mesh
  istioctl x internal-debug syncz

  # Retrieve sync diff for a single Envoy and Istiod
  istioctl x internal-debug syncz istio-egressgateway-59585c5b9c-ndc59.istio-system

  # SECURITY OPTIONS

  # Retrieve syncz debug information directly from the control plane, using token security

	// Ask Pilot for the Envoy sidecar sync status, which includes the sidecar version info
	allSyncz, err := kubeClient.AllDiscoveryDo(context.TODO(), istioNamespace, "debug/syncz")
	if err != nil {
		return nil, err
	}

	pi := []istioVersion.ProxyInfo{}
	for _, syncz := range allSyncz {
		var sss []*sidecarSyncStatus
		err = json.Unmarshal(syncz, &sss)
		if err != nil {
			return nil, err
		}

	req, err := http.NewRequest(http.MethodGet, "/debug", nil)
	if err != nil {
		t.Fatal(err)
	}
	rr := httptest.NewRecorder()
	syncz := http.HandlerFunc(server.Syncz)
	syncz.ServeHTTP(rr, req)
	got := []xds.SyncStatus{}
	if err := json.Unmarshal(rr.Body.Bytes(), &got); err != nil {
		t.Error(err)
	}
	return got
}

Laura Kassovic <******@****.***> 1701107622 -0800

*   Added the concurrent service sync flag to the Cloud Controller Manager to allow changing the number of workers. (`--concurrent-service-syncs`) ([#55561](https://github.com/kubernetes/kubernetes/pull/55561),[ @jhorwit2](https://github.com/jhorwit2))

	tmpPath = tmpFile.Name()

	// write data
	if _, err := tmpFile.Write(data); err != nil {
		return tmpPath, err
	}
	// sync file, to ensure it's written in case a hard reset happens
	return tmpPath, tmpFile.Sync()
}

// ReplaceFile replaces the contents of the file at `path` with `data` by writing to a tmp file in the same

- Expanded the partial fix for https://github.com/kubernetes/kubernetes/issues/111539
  which was already started in https://github.com/kubernetes/kubernetes/pull/109706
  Specifically, we will now reduce the amount of syncs for `ETP=local` services even

Kebe <******@****.***> 1682963494 +0800

	// TypeDebugSyncronization requests Envoy CSDS for proxy sync status
	TypeDebugSyncronization = v3.DebugType + "/syncz"

	// TypeDebugConfigDump requests Envoy configuration for a proxy without creating one
	TypeDebugConfigDump = v3.DebugType + "/config_dump"

	// TODO: TypeURLReady - readiness events for endpoints, agent can propagate
)

// StatusGen is a Generator for XDS status: connections, syncz, configdump
type StatusGen struct {

	name string
}

// Event feeds a single event into the stats summarizer.
func (s *Summarizer) Event(ev *Event) {
	if s.syncTs == 0 {
		s.syncTs = ev.Time()
	}
	s.lastTs = ev.Time()

	switch ev.Kind() {
	// Record sync time for the RangeActive events.
	case EventSync:
		s.syncTs = ev.Time()

	// Handle state transitions.
	case EventStateTransition:
		st := ev.StateTransition()