+ (values.xStats().mean() - xStats.mean())
                  * (values.yStats().mean() - yStats.mean())
                  * values.count();
    }
    yStats.addAll(values.yStats());
  }

  /** Returns an immutable snapshot of the current statistics. */
  public PairedStats snapshot() {
    return new PairedStats(xStats.snapshot(), yStats.snapshot(), sumOfProductsOfDeltas);
  }

		switch bktStatus {
		case ResyncCompleted:
			st.BucketStatuses[o.bucket] = ResyncCompleted
			st.Status = siteResyncStatus(st.Status, st.BucketStatuses)
			st.LastUpdate = UTCNow()
			sm.resyncStatus[o.resyncID] = st
		case ResyncFailed:
			st.BucketStatuses[o.bucket] = ResyncFailed
			st.Status = siteResyncStatus(st.Status, st.BucketStatuses)
			st.LastUpdate = UTCNow()
			sm.resyncStatus[o.resyncID] = st
		}
	}
}

			ReplicationStats: v,
			ProxyStats:       globalReplicationStats.Load().getProxyStats(k),
		}
	}
	return &BucketStatsMap{Stats: bucketStatsMap, Timestamp: time.Now()}, nil
}

// GetBucketStatsHandler - fetches current in-memory bucket stats, currently only
// returns BucketStats, that currently includes ReplicationStats.

	tb := t.current.Load()
	if tb != nil {
		tbb := *tb
		return tbb.Name()
	}
	return ""
}

func (t *testLogger) Endpoint() string {
	return ""
}

func (t *testLogger) Stats() types.TargetStats {
	return types.TargetStats{}
}

func (t *testLogger) Init(ctx context.Context) error {
	return nil
}

func (t *testLogger) IsOnline(ctx context.Context) bool {

func httpTracerMiddleware(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		// Setup a http request response recorder - this is needed for
		// http stats requests and audit if enabled.
		respRecorder := xhttp.NewResponseRecorder(w)

		// Setup a http request body recorder
		reqRecorder := &xhttp.RequestRecorder{Reader: r.Body}
		r.Body = reqRecorder

		adminRouter.Methods(http.MethodGet).Path(adminVersion + "/groups").HandlerFunc(adminMiddleware(adminAPI.ListGroups))

		// Set Group Status
		adminRouter.Methods(http.MethodPut).Path(adminVersion+"/set-group-status").HandlerFunc(adminMiddleware(adminAPI.SetGroupStatus)).Queries("group", "{group:.*}").Queries("status", "{status:.*}")

		// Export IAM info to zipped file

        regA(builder);
        return builder;
    }

    protected StatsAggregationBuilder regStatsA(String name, String field) {
        StatsAggregationBuilder builder = AggregationBuilders.stats(name).field(field);
        regA(builder);
        return builder;
    }

    protected PercentilesAggregationBuilder regPercentilesA(String name, String field) {

)

func loadProcStatMetrics(ctx context.Context, stat procfs.ProcStat, m MetricValues) {
	if stat.CPUTime() > 0 {
		m.Set(processCPUTotalSeconds, float64(stat.CPUTime()))
	}

	if stat.ResidentMemory() > 0 {
		m.Set(processResidentMemoryBytes, float64(stat.ResidentMemory()))
	}

	if stat.VirtualMemory() > 0 {
		m.Set(processVirtualMemoryBytes, float64(stat.VirtualMemory()))
	}

	startTime, err := stat.StartTime()

		stats = append(stats, madmin.KMS{
			Status:   string(state),
			Endpoint: endpoint,
		})
	}
	return stats
}

func targetStatus(ctx context.Context, h logger.Target) madmin.Status {
	if h.IsOnline(ctx) {
		return madmin.Status{Status: string(madmin.ItemOnline)}
	}
	return madmin.Status{Status: string(madmin.ItemOffline)}
}

// fetchLoggerInfo return log info

		return err
	}
	var state srState
	if !unlinkSelf {
		state = srState{
			Name:                    c.state.Name,
			Peers:                   updatedPeers,
			ServiceAccountAccessKey: c.state.ServiceAccountAccessKey,
		}
	}

	if err := c.saveToDisk(ctx, state); err != nil {
		return errSRBackendIssue(fmt.Errorf("unable to save cluster-replication state to drive on %s: %v", ourName, err))
	}