Accept client connections

main.go

@@ -21,7 +21,6 @@ import (
 	"memphis/analytics"
 	"memphis/db"
 	"memphis/http_server"
-	"memphis/memphis_cache"
 	"memphis/server"
 	"strings"
 
@@ -103,101 +102,50 @@ func runMemphis(s *server.Server) {
 		s.Errorf("Failed initializing analytics: " + err.Error())
 	}
 
-	err = server.TenantSeqInitialize()
-	if err != nil {
-		s.Errorf("Failed to initialize tenants sequence %v", err.Error())
-	}
-
-	err = memphis_cache.InitializeUserCache(s.Errorf)
-	if err != nil {
-		s.Errorf("Failed to initialize user cache %v", err.Error())
-	}
-
-	err = s.InitializeEventCounter()
-	if err != nil {
-		s.Errorf("Failed initializing event counter: " + err.Error())
-	}
-
-	err = s.InitializeFirestore()
-	if err != nil {
-		s.Errorf("Failed initializing firestore: " + err.Error())
-	}
-
-	s.InitializeMemphisHandlers()
-
-	err = server.InitializeIntegrations()
-	if err != nil {
-		s.Errorf("Failed initializing integrations: " + err.Error())
-	}
-
-	err = s.SetDlsRetentionForExistTenants()
-	if err != nil {
-		s.Errorf("failed setting existing tenants with dls retention opts: %v", err.Error())
-	}
+	isUserPassBased := os.Getenv("USER_PASS_BASED_AUTH") == "true"
 
-	err = s.Force3ReplicationsForExistingStations()
-	if err != nil {
-		s.Errorf("Failed force 3 replications for existing stations: " + err.Error())
-	}
-
-	s.CompleteRelevantStuckAsyncTasks()
-
-	go func() {
-		s.CreateInternalJetStreamResources()
-		go http_server.InitializeHttpServer(s)
-		err = s.StartBackgroundTasks()
-		if err != nil {
-			s.Errorf("Background task failed: " + err.Error())
-			os.Exit(1)
+	if isUserPassBased {
+		// For backward compatibility data from old account to memphis default account
+		storeDir := s.Opts().StoreDir
+		if storeDir == "" {
+			storeDir = os.TempDir()
+			storeDir = strings.TrimSuffix(storeDir, "/")
 		}
 
-		// run only on the leader
-		go s.KillZombieResources()
+		folderName := fmt.Sprintf("%s%s%s", storeDir, "/jetstream/", server.DEFAULT_GLOBAL_ACCOUNT)
+		f, _ := os.Stat(folderName)
+		if f != nil {
+			err = s.MoveResourcesFromOldToNewDefaultAcc()
+			if err != nil {
+				s.Errorf("Data from global account to memphis account failed: %s", err.Error())
+			}
+		}
+	}
 
-		isUserPassBased := os.Getenv("USER_PASS_BASED_AUTH") == "true"
+	go http_server.InitializeHttpServer(s)
 
+	var env string
+	var message string
+	if os.Getenv("DOCKER_ENV") != "" {
+		env = "Docker"
 		if isUserPassBased {
-			// For backward compatibility data from old account to memphis default account
-			storeDir := s.Opts().StoreDir
-			if storeDir == "" {
-				storeDir = os.TempDir()
-				storeDir = strings.TrimSuffix(storeDir, "/")
-			}
-
-			folderName := fmt.Sprintf("%s%s%s", storeDir, "/jetstream/", server.DEFAULT_GLOBAL_ACCOUNT)
-			f, _ := os.Stat(folderName)
-			if f != nil {
-				err = s.MoveResourcesFromOldToNewDefaultAcc()
-				if err != nil {
-					s.Errorf("Data from global account to memphis account failed: %s", err.Error())
-				}
-			}
+			message = "\n**********\n\nDashboard/CLI: http://localhost:" + fmt.Sprint(s.Opts().UiPort) + "\nBroker: localhost:" + fmt.Sprint(s.Opts().Port) + " (client connections)\nREST gateway: localhost:" + fmt.Sprint(s.Opts().RestGwPort) + " (Data and management via HTTP)\nUI/CLI/SDK root username - root\nUI/CLI/SDK root password - memphis\n\nDocs: https://docs.memphis.dev/memphis/getting-started/2-hello-world  \n\n**********"
+		} else {
+			message = "\n**********\n\nDashboard/CLI: http://localhost:" + fmt.Sprint(s.Opts().UiPort) + "\nBroker: localhost:" + fmt.Sprint(s.Opts().Port) + " (client connections)\nREST gateway: localhost:" + fmt.Sprint(s.Opts().RestGwPort) + " (Data and management via HTTP)\nUI/CLI/SDK root username - root\nUI/CLI root password - memphis\nSDK connection token - " + s.Opts().Authorization + "\n\nDocs: https://docs.memphis.dev/memphis/getting-started/2-hello-world  \n\n**********"
 		}
-
-		var env string
-		var message string
-		if os.Getenv("DOCKER_ENV") != "" {
-			env = "Docker"
-			if isUserPassBased {
-				message = "\n**********\n\nDashboard/CLI: http://localhost:" + fmt.Sprint(s.Opts().UiPort) + "\nBroker: localhost:" + fmt.Sprint(s.Opts().Port) + " (client connections)\nREST gateway: localhost:" + fmt.Sprint(s.Opts().RestGwPort) + " (Data and management via HTTP)\nUI/CLI/SDK root username - root\nUI/CLI/SDK root password - memphis\n\nDocs: https://docs.memphis.dev/memphis/getting-started/2-hello-world  \n\n**********"
-			} else {
-				message = "\n**********\n\nDashboard/CLI: http://localhost:" + fmt.Sprint(s.Opts().UiPort) + "\nBroker: localhost:" + fmt.Sprint(s.Opts().Port) + " (client connections)\nREST gateway: localhost:" + fmt.Sprint(s.Opts().RestGwPort) + " (Data and management via HTTP)\nUI/CLI/SDK root username - root\nUI/CLI root password - memphis\nSDK connection token - " + s.Opts().Authorization + "\n\nDocs: https://docs.memphis.dev/memphis/getting-started/2-hello-world  \n\n**********"
-			}
-			s.Noticef(message)
-		} else if os.Getenv("LOCAL_CLUSTER_ENV") != "" {
-			env = "Local cluster"
-			if isUserPassBased {
-				message = "\n**********\n\nDashboard/CLI: http://localhost:9000/9001/9002\nBroker: localhost:6666/6667/6668 (client connections)\nREST gateway: localhost:" + fmt.Sprint(s.Opts().RestGwPort) + " (Data and management via HTTP)\nUI/CLI/SDK root username - root\nUI/CLI/SDK root password - memphis\n\nDocs: https://docs.memphis.dev/memphis/getting-started/2-hello-world  \n\n**********"
-			} else {
-				message = "\n**********\n\nDashboard/CLI: http://localhost:9000/9001/9002\nBroker: localhost:6666/6667/6668 (client connections)\nREST gateway: localhost:" + fmt.Sprint(s.Opts().RestGwPort) + " (Data and management via HTTP)\nUI/CLI/SDK root username - root\nUI/CLI root password - memphis\nSDK connection token - " + s.Opts().Authorization + "\n\nDocs: https://docs.memphis.dev/memphis/getting-started/2-hello-world  \n\n**********"
-			}
-			s.Noticef(message)
+		s.Noticef(message)
+	} else if os.Getenv("LOCAL_CLUSTER_ENV") != "" {
+		env = "Local cluster"
+		if isUserPassBased {
+			message = "\n**********\n\nDashboard/CLI: http://localhost:9000/9001/9002\nBroker: localhost:6666/6667/6668 (client connections)\nREST gateway: localhost:" + fmt.Sprint(s.Opts().RestGwPort) + " (Data and management via HTTP)\nUI/CLI/SDK root username - root\nUI/CLI/SDK root password - memphis\n\nDocs: https://docs.memphis.dev/memphis/getting-started/2-hello-world  \n\n**********"
 		} else {
-			env = "K8S"
+			message = "\n**********\n\nDashboard/CLI: http://localhost:9000/9001/9002\nBroker: localhost:6666/6667/6668 (client connections)\nREST gateway: localhost:" + fmt.Sprint(s.Opts().RestGwPort) + " (Data and management via HTTP)\nUI/CLI/SDK root username - root\nUI/CLI root password - memphis\nSDK connection token - " + s.Opts().Authorization + "\n\nDocs: https://docs.memphis.dev/memphis/getting-started/2-hello-world  \n\n**********"
 		}
-
-		s.Noticef("*** Memphis broker is ready, ENV: %s :-) ***", env)
-	}()
+		s.Noticef(message)
+	} else {
+		env = "K8S"
+	}
+	s.Noticef("*** Memphis broker is ready, ENV: %s :-) ***", env)
 }
 
 func main() {

server/memphis_handlers_ws.go

@@ -115,11 +115,13 @@ func memphisWSLoop(s *Server, subs *concurrentMap[memphisWSReqTenantsToFiller],
 						if !IsNatsErr(err, JSStreamNotFoundErr) && !strings.Contains(err.Error(), "not exist") && !strings.Contains(err.Error(), "alphanumeric") {
 							s.Errorf("[tenant: %v]memphisWSLoop at filler: %v", tenant, err.Error())
 						}
+						deleteTenantFromSub(tenant, subs, k)
 						continue
 					}
 					updateRaw, err := json.Marshal(update)
 					if err != nil {
 						s.Errorf("[tenant: %v]memphisWSLoop at json.Marshal: %v", tenant, err.Error())
+						deleteTenantFromSub(tenant, subs, k)
 						continue
 					}
 

server/server.go

@@ -26,6 +26,7 @@ import (
 	"math/rand"
 	"memphis/db"
 	"memphis/logger"
+	"memphis/memphis_cache"
 	"net"
 	"net/http"
 	"regexp"
@@ -1873,7 +1874,6 @@ func (s *Server) Start() {
 	if opts.Gateway.Port != 0 {
 		s.startGateways()
 	}
-
 	// Start websocket server if needed. Do this before starting the routes, and
 	// leaf node because we want to resolve the gateway host:port so that this
 	// information can be sent to other routes.
@@ -1933,6 +1933,9 @@ func (s *Server) Start() {
 	if !opts.DontListen {
 		s.AcceptLoop(clientListenReady)
 	}
+	//** added by memphis
+	s.initializeMemphis()
+	// added by memphis **
 }
 
 // Shutdown will shutdown the server instance by kicking out the AcceptLoop
@@ -2140,9 +2143,10 @@ func (s *Server) AcceptLoop(clr chan struct{}) {
 		s.Fatalf("Error listening on port: %s, %q", hp, e)
 		return
 	}
-	s.Noticef("Listening for client connections on %s",
-		net.JoinHostPort(opts.Host, strconv.Itoa(l.Addr().(*net.TCPAddr).Port)))
-
+	//** moved to AcceptClientConnections by memphis
+	// s.Noticef("Listening for client connections on %s",
+	// 	net.JoinHostPort(opts.Host, strconv.Itoa(l.Addr().(*net.TCPAddr).Port)))
+	// moved to AcceptClientConnections by memphis **
 	// Alert of TLS enabled.
 	if opts.TLSConfig != nil {
 		s.Noticef("TLS required for client connections")
@@ -2167,18 +2171,19 @@ func (s *Server) AcceptLoop(clr chan struct{}) {
 	// Keep track of client connect URLs. We may need them later.
 	s.clientConnectURLs = s.getClientConnectURLs()
 	s.listener = l
-
-	go s.acceptConnections(l, "Client", func(conn net.Conn) { s.createClient(conn) },
-		func(_ error) bool {
-			if s.isLameDuckMode() {
-				// Signal that we are not accepting new clients
-				s.ldmCh <- true
-				// Now wait for the Shutdown...
-				<-s.quitCh
-				return true
-			}
-			return false
-		})
+	//** moved to AcceptClientConnections by memphis
+	// go s.acceptConnections(l, "Client", func(conn net.Conn) { s.createClient(conn) },
+	// 	func(_ error) bool {
+	// 		if s.isLameDuckMode() {
+	// 			// Signal that we are not accepting new clients
+	// 			s.ldmCh <- true
+	// 			// Now wait for the Shutdown...
+	// 			<-s.quitCh
+	// 			return true
+	// 		}
+	// 		return false
+	// 	})
+	// moved to AcceptClientConnections by memphis **
 	s.mu.Unlock()
 
 	// Let the caller know that we are ready
@@ -3777,3 +3782,99 @@ func (s *Server) changeRateLimitLogInterval(d time.Duration) {
 	default:
 	}
 }
+
+//** added by memphis
+func (s *Server) AcceptClientConnections() {
+	s.mu.Lock()
+	go s.acceptConnections(s.listener, "Client", func(conn net.Conn) { s.createClient(conn) },
+		func(_ error) bool {
+			if s.isLameDuckMode() {
+				// Signal that we are not accepting new clients
+				s.ldmCh <- true
+				// Now wait for the Shutdown...
+				<-s.quitCh
+				return true
+			}
+			return false
+		})
+	s.mu.Unlock()
+	opts := s.getOpts()
+	s.Noticef("Listening for client connections on %s",
+		net.JoinHostPort(opts.Host, strconv.Itoa(s.listener.Addr().(*net.TCPAddr).Port)))
+}
+
+func (s *Server) AcceptWSConnections() {
+	s.mu.Lock()
+	go func() {
+		if err := s.websocket.server.Serve(s.websocket.listener); err != http.ErrServerClosed {
+			s.Fatalf("websocket listener error: %v", err)
+		}
+		if s.isLameDuckMode() {
+			// Signal that we are not accepting new clients
+			s.ldmCh <- true
+			// Now wait for the Shutdown...
+			<-s.quitCh
+			return
+		}
+		s.done <- true
+	}()
+	s.mu.Unlock()
+	opts := s.getOpts()
+	o := &opts.Websocket
+	var proto string
+	if o.TLSConfig != nil {
+		proto = wsSchemePrefixTLS
+	} else {
+		proto = wsSchemePrefix
+	}
+	s.Noticef("Listening for websocket clients on %s://%s:%d", proto, o.Host, o.Port)
+}
+
+func (s *Server) initializeMemphis() {
+	err := TenantSeqInitialize()
+	if err != nil {
+		s.Errorf("Failed to initialize tenants sequence %v", err.Error())
+	}
+	err = memphis_cache.InitializeUserCache(s.Errorf)
+	if err != nil {
+		s.Errorf("Failed to initialize user cache %v", err.Error())
+	}
+	err = s.InitializeEventCounter()
+	if err != nil {
+		s.Errorf("Failed initializing event counter: " + err.Error())
+	}
+	err = s.InitializeFirestore()
+	if err != nil {
+		s.Errorf("Failed initializing firestore: " + err.Error())
+	}
+
+	err = InitializeIntegrations()
+	if err != nil {
+		s.Errorf("Failed initializing integrations: " + err.Error())
+	}
+	err = s.SetDlsRetentionForExistTenants()
+	if err != nil {
+		s.Errorf("failed setting existing tenants with dls retention opts: %v", err.Error())
+	}
+	err = s.Force3ReplicationsForExistingStations()
+	if err != nil {
+		s.Errorf("Failed force 3 replications for existing stations: " + err.Error())
+	}
+	s.CompleteRelevantStuckAsyncTasks()
+	opts := s.getOpts()
+	s.InitializeMemphisHandlers()
+	if !opts.DontListen {
+		s.AcceptClientConnections()
+	}
+	s.CreateInternalJetStreamResources()
+	err = s.StartBackgroundTasks()
+	if err != nil {
+		s.Errorf("Background task failed: " + err.Error())
+		os.Exit(1)
+	}
+	s.AcceptWSConnections()
+	// run only on the leader
+	go s.KillZombieResources()
+}
+
+// added by memphis **

server/websocket.go

@@ -1090,7 +1090,9 @@ func (s *Server) startWebsocketServer() {
 	if port == 0 {
 		o.Port = hl.Addr().(*net.TCPAddr).Port
 	}
-	s.Noticef("Listening for websocket clients on %s://%s:%d", proto, o.Host, o.Port)
+	//** moved to AcceptWSConnections by memphis
+	// s.Noticef("Listening for websocket clients on %s://%s:%d", proto, o.Host, o.Port)
+	//moved to AcceptWSConnections by memphis **
 	if proto == wsSchemePrefix {
 		s.Warnf("Websocket not configured with TLS. DO NOT USE IN PRODUCTION!")
 	}
@@ -1136,19 +1138,21 @@ func (s *Server) startWebsocketServer() {
 	}
 	s.websocket.server = hs
 	s.websocket.listener = hl
-	go func() {
-		if err := hs.Serve(hl); err != http.ErrServerClosed {
-			s.Fatalf("websocket listener error: %v", err)
-		}
-		if s.isLameDuckMode() {
-			// Signal that we are not accepting new clients
-			s.ldmCh <- true
-			// Now wait for the Shutdown...
-			<-s.quitCh
-			return
-		}
-		s.done <- true
-	}()
+	//** moved to AcceptWSConnections by memphis
+	// go func() {
+	// 	if err := hs.Serve(hl); err != http.ErrServerClosed {
+	// 		s.Fatalf("websocket listener error: %v", err)
+	// 	}
+	// 	if s.isLameDuckMode() {
+	// 		// Signal that we are not accepting new clients
+	// 		s.ldmCh <- true
+	// 		// Now wait for the Shutdown...
+	// 		<-s.quitCh
+	// 		return
+	// 	}
+	// 	s.done <- true
+	// }()
+	// moved to AcceptWSConnections by memphis **
 	s.mu.Unlock()
 }