cleanup and add manage goroutine to stopper pattern

server/args.go

@@ -84,7 +84,6 @@ const (
 	DefaultBannerFile      = ""
 	DefaultCountry         = "US"
 
-	GENESIS_HASH             = "9c89283ba0f3227f6c03b70216b9f665f0118d5e0fa729cedf4fb34d6a34f463"
 	HUB_PROTOCOL_VERSION     = "0.107.0"
 	PROTOCOL_MIN             = "0.54.0"
 	PROTOCOL_MAX             = "0.199.0"
@@ -303,7 +302,7 @@ func ParseArgs(searchRequest *pb.SearchRequest) *Args {
 		BlockingChannelIds:  *blockingChannelIds,
 		FilteringChannelIds: *filteringChannelIds,
 
-		GenesisHash:       GENESIS_HASH,
+		GenesisHash:       "",
 		ServerVersion:     HUB_PROTOCOL_VERSION,
 		ProtocolMin:       PROTOCOL_MIN,
 		ProtocolMax:       PROTOCOL_MAX,

server/jsonrpc_server.go

@@ -39,7 +39,7 @@ func (t *ServerService) Features(req *ServerFeaturesReq, res **ServerFeaturesRes
 		ServerVersion:     HUB_PROTOCOL_VERSION,
 		ProtocolMin:       PROTOCOL_MIN,
 		ProtocolMax:       PROTOCOL_MAX,
-		GenesisHash:       GENESIS_HASH,
+		GenesisHash:       t.Args.GenesisHash,
 		Description:       t.Args.ServerDescription,
 		PaymentAddress:    t.Args.PaymentAddress,
 		DonationAddress:   t.Args.DonationAddress,

server/server.go

@@ -268,14 +268,11 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {
 
 	//TODO: is this the right place to load the db?
 	var myDB *db.ReadOnlyDBColumnFamily
-	// var dbShutdown = func() {}
 	if !args.DisableResolve {
 		myDB, err = LoadDatabase(args, grp)
 		if err != nil {
 			logrus.Warning(err)
 		}
-		// myDB.Grp = stop.New(grp)
-		// myDB.Grp.Add(1)
 	}
 
 	// Determine which chain to use based on db and cli values

server/session.go

@@ -147,6 +147,7 @@ func newSessionManager(db *db.ReadOnlyDBColumnFamily, args *Args, grp *stop.Grou
 }
 
 func (sm *sessionManager) start() {
+	sm.grp.Add(1)
 	go sm.manage()
 }
 
@@ -175,6 +176,7 @@ func (sm *sessionManager) manage() {
 		// Wait for next management clock tick.
 		select {
 		case <-sm.grp.Ch():
+			sm.grp.Done()
 			return
 		case <-sm.manageTicker.C:
 			continue