Addressed code reviews.

cmd/root.go

@@ -25,8 +25,8 @@ var conf string
 var globalConfig Config
 
 var rootCmd = &cobra.Command{
-	Use:   "reflector",
-	Short: "Reflector accepts blobs, stores them securely, and hosts them on the network",
+	Use:   "prism",
+	Short: "Prism is a single entry point application with multiple sub modules which can be leveraged individually or together",
 	PersistentPreRun: func(cmd *cobra.Command, args []string) {
 		if verbose {
 			log.SetLevel(log.DebugLevel)

cmd/start.go

@@ -16,7 +16,7 @@ import (
 func init() {
 	var cmd = &cobra.Command{
 		Use:   "start [cluster-address]",
-		Short: "Run prism server",
+		Short: "Runs prism application with cluster, dht, peer server, and reflector server.",
 		Run:   startCmd,
 		Args:  cobra.RangeArgs(0, 1),
 	}
@@ -24,7 +24,6 @@ func init() {
 }
 
 func startCmd(cmd *cobra.Command, args []string) {
-	log.SetLevel(log.DebugLevel)
 	db := new(db.SQL)
 	err := db.Connect(globalConfig.DBConn)
 	checkErr(err)

dht/dht.go

@@ -136,10 +136,12 @@ func (dht *DHT) join() {
 	// now call iterativeFind on yourself
 	nf := newContactFinder(dht.node, dht.node.id, false)
 	// stop if dht is stopped
-	go func(finder *contactFinder) {
+	go func() {
 		<-dht.stop.Ch()
-		nf.Cancel()
-	}(nf)
+		if nf != nil {
+			nf.Cancel()
+		}
+	}()
 	_, err := nf.Find()
 	if err != nil {
 		log.Errorf("[%s] join: %s", dht.node.id.HexShort(), err.Error())
@@ -160,18 +162,21 @@ func (dht *DHT) Start() error {
 	if err != nil {
 		return err
 	}
+	//Perform join in the background
 	dht.stop.Add(1)
 	go func() {
 		defer dht.stop.Done()
 		dht.join()
-	}()
-	dht.stop.Add(1)
-	go func() {
-		defer dht.stop.Done()
-		dht.startReannouncer()
+		log.Debugf("[%s] DHT ready on %s (%d nodes found during join)",
+			dht.node.id.HexShort(), dht.contact.Addr().String(), dht.node.rt.Count())
+		//Reannouncer can only be launched after join is complete.
+		dht.stop.Add(1)
+		go func() {
+			defer dht.stop.Done()
+			dht.startReannouncer()
+		}()
 	}()
 
-	log.Debugf("[%s] DHT ready on %s (%d nodes found during join)", dht.node.id.HexShort(), dht.contact.Addr().String(), dht.node.rt.Count())
 	return nil
 }
 

reflector/prism.go

@@ -37,16 +37,23 @@ func NewPrism(store store.BlobStore, clusterSeedAddr string) *Prism {
 
 // Start starts the components of the application.
 func (p *Prism) Start() error {
-	if err := p.dht.Start(); err != nil {
+	err := p.dht.Start()
+	if err != nil {
 		return err
 	}
-	if err := p.cluster.Connect(); err != nil {
+
+	err = p.cluster.Connect()
+	if err != nil {
 		return err
 	}
-	if err := p.peer.Start("localhost:" + strconv.Itoa(peer.DefaultPort)); err != nil {
+
+	err = p.peer.Start("localhost:" + strconv.Itoa(peer.DefaultPort))
+	if err != nil {
 		return err
 	}
-	if err := p.reflector.Start("localhost:" + strconv.Itoa(DefaultPort)); err != nil {
+
+	err = p.reflector.Start("localhost:" + strconv.Itoa(DefaultPort))
+	if err != nil {
 		return err
 	}