globalLastClientPerfExtraTime int64

	// Captures all batch jobs metrics globally
	globalBatchJobsMetrics batchJobMetrics

	// Indicates if server was started as `--address ":0"`
	globalDynamicAPIPort bool

	// Add new variable global values here.
)

var globalAuthPluginMutex sync.Mutex

func newGlobalAuthNPluginFn() *idplugin.AuthNPlugin {
	globalAuthPluginMutex.Lock()

	if globalMinioPort == "0" {
		p, err := xnet.GetFreePort()
		if err != nil {
			logger.FatalIf(err, "Unable to get free port for S3 API on the host")
		}
		globalMinioPort = p.String()
		globalDynamicAPIPort = true
	}

	if globalBrowserEnabled {
		globalMinioConsoleHost, globalMinioConsolePort = mustSplitHostPort(consoleAddr)
	}

	if globalMinioPort == globalMinioConsolePort {

	globalIsDistErasure = (setupType == DistErasureSetupType)
	if globalIsDistErasure {
		globalIsErasure = true
	}
	globalIsErasureSD = (setupType == ErasureSDSetupType)
	if globalDynamicAPIPort && globalIsDistErasure {
		logger.FatalIf(errInvalidArgument, "Invalid --address=\"%s\", port '0' is not allowed in a distributed erasure coded setup", ctxt.Addr)
	}