Implement comprehensive WebSocket subscription stability fixes
- Resolved critical issues causing subscriptions to drop after 30-60 seconds due to unconsumed receiver channels. - Introduced per-subscription consumer goroutines to ensure continuous event delivery and prevent channel overflow. - Enhanced REQ parsing to handle both wrapped and unwrapped filter arrays, eliminating EOF errors. - Updated publisher logic to correctly send events to receiver channels, ensuring proper event delivery to subscribers. - Added extensive documentation and testing tools to verify subscription stability and performance. - Bumped version to v0.26.2 to reflect these significant improvements.
This commit is contained in:
268
cmd/subscription-test-simple/main.go
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268
cmd/subscription-test-simple/main.go
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@@ -0,0 +1,268 @@
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package main
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import (
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"context"
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"encoding/json"
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"flag"
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"fmt"
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"log"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/gorilla/websocket"
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)
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var (
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relayURL = flag.String("url", "ws://localhost:3334", "Relay WebSocket URL")
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duration = flag.Int("duration", 120, "Test duration in seconds")
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)
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func main() {
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flag.Parse()
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log.SetFlags(log.Ltime)
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fmt.Println("===================================")
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fmt.Println("Simple Subscription Stability Test")
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fmt.Println("===================================")
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fmt.Printf("Relay: %s\n", *relayURL)
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fmt.Printf("Duration: %d seconds\n", *duration)
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fmt.Println()
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fmt.Println("This test verifies that subscriptions remain")
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fmt.Println("active without dropping over the test period.")
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fmt.Println()
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// Connect to relay
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log.Printf("Connecting to %s...", *relayURL)
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conn, _, err := websocket.DefaultDialer.Dial(*relayURL, nil)
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if err != nil {
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log.Fatalf("Failed to connect: %v", err)
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}
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defer conn.Close()
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log.Printf("✓ Connected")
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// Context for the test
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ctx, cancel := context.WithTimeout(context.Background(), time.Duration(*duration+10)*time.Second)
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defer cancel()
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// Handle interrupts
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sigChan := make(chan os.Signal, 1)
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signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
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go func() {
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<-sigChan
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log.Println("\nInterrupted, shutting down...")
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cancel()
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}()
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// Subscribe
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subID := fmt.Sprintf("stability-test-%d", time.Now().Unix())
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reqMsg := []interface{}{"REQ", subID, map[string]interface{}{"kinds": []int{1}}}
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reqMsgBytes, _ := json.Marshal(reqMsg)
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log.Printf("Sending subscription: %s", subID)
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if err := conn.WriteMessage(websocket.TextMessage, reqMsgBytes); err != nil {
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log.Fatalf("Failed to send REQ: %v", err)
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}
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// Track connection health
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lastMessageTime := time.Now()
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gotEOSE := false
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messageCount := 0
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pingCount := 0
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// Read goroutine
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readDone := make(chan struct{})
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go func() {
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defer close(readDone)
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for {
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select {
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case <-ctx.Done():
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return
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default:
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}
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conn.SetReadDeadline(time.Now().Add(10 * time.Second))
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msgType, msg, err := conn.ReadMessage()
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if err != nil {
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if ctx.Err() != nil {
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return
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}
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if netErr, ok := err.(interface{ Timeout() bool }); ok && netErr.Timeout() {
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continue
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}
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log.Printf("Read error: %v", err)
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return
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}
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lastMessageTime = time.Now()
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messageCount++
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// Handle PING
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if msgType == websocket.PingMessage {
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pingCount++
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log.Printf("Received PING #%d, sending PONG", pingCount)
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conn.WriteMessage(websocket.PongMessage, nil)
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continue
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}
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// Parse message
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var envelope []json.RawMessage
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if err := json.Unmarshal(msg, &envelope); err != nil {
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continue
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}
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if len(envelope) < 2 {
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continue
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}
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var msgTypeStr string
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json.Unmarshal(envelope[0], &msgTypeStr)
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switch msgTypeStr {
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case "EOSE":
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var recvSubID string
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json.Unmarshal(envelope[1], &recvSubID)
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if recvSubID == subID && !gotEOSE {
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gotEOSE = true
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log.Printf("✓ Received EOSE - subscription is active")
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}
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case "EVENT":
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var recvSubID string
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json.Unmarshal(envelope[1], &recvSubID)
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if recvSubID == subID {
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log.Printf("Received EVENT (subscription still active)")
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}
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case "CLOSED":
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var recvSubID string
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json.Unmarshal(envelope[1], &recvSubID)
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if recvSubID == subID {
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log.Printf("⚠ Subscription CLOSED by relay!")
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cancel()
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return
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}
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case "NOTICE":
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var notice string
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json.Unmarshal(envelope[1], ¬ice)
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log.Printf("NOTICE: %s", notice)
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}
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}
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}()
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// Wait for EOSE
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log.Println("Waiting for EOSE...")
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for !gotEOSE && ctx.Err() == nil {
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time.Sleep(100 * time.Millisecond)
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}
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if !gotEOSE {
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log.Fatal("Did not receive EOSE")
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}
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// Monitor loop
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startTime := time.Now()
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ticker := time.NewTicker(10 * time.Second)
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defer ticker.Stop()
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log.Println()
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log.Printf("Subscription is active. Monitoring for %d seconds...", *duration)
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log.Println("(Subscription should stay active even without events)")
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log.Println()
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for {
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select {
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case <-ctx.Done():
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goto done
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case <-ticker.C:
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elapsed := time.Since(startTime)
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timeSinceMessage := time.Since(lastMessageTime)
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log.Printf("[%3.0fs/%ds] Messages: %d | Last message: %.0fs ago | Status: %s",
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elapsed.Seconds(),
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*duration,
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messageCount,
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timeSinceMessage.Seconds(),
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getStatus(timeSinceMessage),
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)
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// Check if we've reached duration
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if elapsed >= time.Duration(*duration)*time.Second {
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goto done
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}
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}
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}
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done:
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cancel()
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// Wait for reader
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select {
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case <-readDone:
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case <-time.After(2 * time.Second):
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}
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// Send CLOSE
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closeMsg := []interface{}{"CLOSE", subID}
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closeMsgBytes, _ := json.Marshal(closeMsg)
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conn.WriteMessage(websocket.TextMessage, closeMsgBytes)
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// Results
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elapsed := time.Since(startTime)
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timeSinceMessage := time.Since(lastMessageTime)
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fmt.Println()
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fmt.Println("===================================")
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fmt.Println("Test Results")
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fmt.Println("===================================")
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fmt.Printf("Duration: %.1f seconds\n", elapsed.Seconds())
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fmt.Printf("Total messages: %d\n", messageCount)
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fmt.Printf("Last message: %.0f seconds ago\n", timeSinceMessage.Seconds())
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fmt.Println()
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// Determine success
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if timeSinceMessage < 15*time.Second {
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// Recent message - subscription is alive
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fmt.Println("✓ TEST PASSED")
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fmt.Println("Subscription remained active throughout test period.")
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fmt.Println("Recent messages indicate healthy connection.")
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} else if timeSinceMessage < 30*time.Second {
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// Somewhat recent - probably OK
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fmt.Println("✓ TEST LIKELY PASSED")
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fmt.Println("Subscription appears active (message received recently).")
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fmt.Println("Some delay is normal if relay is idle.")
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} else if messageCount > 0 {
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// Got EOSE but nothing since
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fmt.Println("⚠ INCONCLUSIVE")
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fmt.Println("Subscription was established but no activity since.")
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fmt.Println("This is expected if relay has no events and doesn't send pings.")
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fmt.Println("To properly test, publish events during the test period.")
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} else {
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// No messages at all
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fmt.Println("✗ TEST FAILED")
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fmt.Println("No messages received - subscription may have failed.")
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}
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fmt.Println()
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fmt.Println("Note: This test verifies the subscription stays registered.")
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fmt.Println("For full testing, publish events while this runs and verify")
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fmt.Println("they are received throughout the entire test duration.")
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}
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func getStatus(timeSince time.Duration) string {
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seconds := timeSince.Seconds()
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switch {
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case seconds < 10:
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return "ACTIVE (recent message)"
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case seconds < 30:
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return "IDLE (normal)"
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case seconds < 60:
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return "QUIET (possibly normal)"
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default:
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return "STALE (may have dropped)"
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}
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}
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347
cmd/subscription-test/main.go
Normal file
347
cmd/subscription-test/main.go
Normal file
@@ -0,0 +1,347 @@
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package main
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import (
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"context"
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"encoding/json"
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"flag"
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"fmt"
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"log"
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"os"
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"os/signal"
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"sync/atomic"
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"syscall"
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"time"
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"github.com/gorilla/websocket"
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)
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var (
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relayURL = flag.String("url", "ws://localhost:3334", "Relay WebSocket URL")
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duration = flag.Int("duration", 60, "Test duration in seconds")
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eventKind = flag.Int("kind", 1, "Event kind to subscribe to")
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verbose = flag.Bool("v", false, "Verbose output")
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subID = flag.String("sub", "", "Subscription ID (default: auto-generated)")
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)
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type NostrEvent struct {
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ID string `json:"id"`
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PubKey string `json:"pubkey"`
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CreatedAt int64 `json:"created_at"`
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Kind int `json:"kind"`
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Tags [][]string `json:"tags"`
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Content string `json:"content"`
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Sig string `json:"sig"`
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}
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func main() {
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flag.Parse()
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log.SetFlags(log.Ltime | log.Lmicroseconds)
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// Generate subscription ID if not provided
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subscriptionID := *subID
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if subscriptionID == "" {
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subscriptionID = fmt.Sprintf("test-%d", time.Now().Unix())
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}
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log.Printf("Starting subscription stability test")
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log.Printf("Relay: %s", *relayURL)
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log.Printf("Duration: %d seconds", *duration)
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log.Printf("Event kind: %d", *eventKind)
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log.Printf("Subscription ID: %s", subscriptionID)
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log.Println()
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// Connect to relay
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log.Printf("Connecting to %s...", *relayURL)
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conn, _, err := websocket.DefaultDialer.Dial(*relayURL, nil)
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if err != nil {
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log.Fatalf("Failed to connect: %v", err)
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}
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defer conn.Close()
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log.Printf("✓ Connected")
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log.Println()
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// Context for the test
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ctx, cancel := context.WithTimeout(context.Background(), time.Duration(*duration+10)*time.Second)
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defer cancel()
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// Handle interrupts
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sigChan := make(chan os.Signal, 1)
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signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
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go func() {
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<-sigChan
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log.Println("\nInterrupted, shutting down...")
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cancel()
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}()
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// Counters
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var receivedCount atomic.Int64
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var lastEventTime atomic.Int64
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lastEventTime.Store(time.Now().Unix())
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// Subscribe
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reqMsg := map[string]interface{}{
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"kinds": []int{*eventKind},
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}
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reqMsgBytes, _ := json.Marshal(reqMsg)
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subscribeMsg := []interface{}{"REQ", subscriptionID, json.RawMessage(reqMsgBytes)}
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subscribeMsgBytes, _ := json.Marshal(subscribeMsg)
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log.Printf("Sending REQ: %s", string(subscribeMsgBytes))
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if err := conn.WriteMessage(websocket.TextMessage, subscribeMsgBytes); err != nil {
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log.Fatalf("Failed to send REQ: %v", err)
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}
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// Read messages
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gotEOSE := false
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readDone := make(chan struct{})
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consecutiveTimeouts := 0
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maxConsecutiveTimeouts := 20 // Exit if we get too many consecutive timeouts
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go func() {
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defer close(readDone)
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for {
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select {
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case <-ctx.Done():
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return
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default:
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}
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conn.SetReadDeadline(time.Now().Add(5 * time.Second))
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_, msg, err := conn.ReadMessage()
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if err != nil {
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// Check for normal close
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if websocket.IsCloseError(err, websocket.CloseNormalClosure, websocket.CloseGoingAway) {
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log.Println("Connection closed normally")
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return
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}
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// Check if context was cancelled
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if ctx.Err() != nil {
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return
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}
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// Check for timeout errors (these are expected during idle periods)
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if netErr, ok := err.(interface{ Timeout() bool }); ok && netErr.Timeout() {
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consecutiveTimeouts++
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if consecutiveTimeouts >= maxConsecutiveTimeouts {
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log.Printf("Too many consecutive read timeouts (%d), connection may be dead", consecutiveTimeouts)
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return
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}
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// Only log every 5th timeout to avoid spam
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if *verbose && consecutiveTimeouts%5 == 0 {
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log.Printf("Read timeout (idle period, %d consecutive)", consecutiveTimeouts)
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}
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continue
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}
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// For any other error, log and exit
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log.Printf("Read error: %v", err)
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return
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}
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// Reset timeout counter on successful read
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consecutiveTimeouts = 0
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// Parse message
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var envelope []json.RawMessage
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if err := json.Unmarshal(msg, &envelope); err != nil {
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if *verbose {
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log.Printf("Failed to parse message: %v", err)
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}
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continue
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}
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if len(envelope) < 2 {
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continue
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}
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var msgType string
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json.Unmarshal(envelope[0], &msgType)
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// Check message type
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switch msgType {
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case "EOSE":
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var recvSubID string
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json.Unmarshal(envelope[1], &recvSubID)
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if recvSubID == subscriptionID {
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if !gotEOSE {
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gotEOSE = true
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log.Printf("✓ Received EOSE - subscription is active")
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log.Println()
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log.Println("Waiting for real-time events...")
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log.Println()
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}
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}
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case "EVENT":
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var recvSubID string
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json.Unmarshal(envelope[1], &recvSubID)
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if recvSubID == subscriptionID {
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var event NostrEvent
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if err := json.Unmarshal(envelope[2], &event); err == nil {
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count := receivedCount.Add(1)
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lastEventTime.Store(time.Now().Unix())
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eventIDShort := event.ID
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if len(eventIDShort) > 8 {
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eventIDShort = eventIDShort[:8]
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}
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log.Printf("[EVENT #%d] id=%s kind=%d created=%d",
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count, eventIDShort, event.Kind, event.CreatedAt)
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if *verbose {
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log.Printf(" content: %s", event.Content)
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}
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}
|
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}
|
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case "NOTICE":
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var notice string
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json.Unmarshal(envelope[1], ¬ice)
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log.Printf("[NOTICE] %s", notice)
|
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|
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case "CLOSED":
|
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var recvSubID, reason string
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json.Unmarshal(envelope[1], &recvSubID)
|
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if len(envelope) > 2 {
|
||||
json.Unmarshal(envelope[2], &reason)
|
||||
}
|
||||
if recvSubID == subscriptionID {
|
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log.Printf("⚠ Subscription CLOSED by relay: %s", reason)
|
||||
cancel()
|
||||
return
|
||||
}
|
||||
|
||||
case "OK":
|
||||
// Ignore OK messages for this test
|
||||
|
||||
default:
|
||||
if *verbose {
|
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log.Printf("Unknown message type: %s", msgType)
|
||||
}
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
// Wait for EOSE with timeout
|
||||
eoseTimeout := time.After(10 * time.Second)
|
||||
for !gotEOSE {
|
||||
select {
|
||||
case <-eoseTimeout:
|
||||
log.Printf("⚠ Warning: No EOSE received within 10 seconds")
|
||||
gotEOSE = true // Continue anyway
|
||||
case <-ctx.Done():
|
||||
log.Println("Test cancelled before EOSE")
|
||||
return
|
||||
case <-time.After(100 * time.Millisecond):
|
||||
// Keep waiting
|
||||
}
|
||||
}
|
||||
|
||||
// Monitor for subscription drops
|
||||
startTime := time.Now()
|
||||
endTime := startTime.Add(time.Duration(*duration) * time.Second)
|
||||
|
||||
// Start monitoring goroutine
|
||||
go func() {
|
||||
ticker := time.NewTicker(5 * time.Second)
|
||||
defer ticker.Stop()
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return
|
||||
case <-ticker.C:
|
||||
elapsed := time.Since(startTime).Seconds()
|
||||
lastEvent := lastEventTime.Load()
|
||||
timeSinceLastEvent := time.Now().Unix() - lastEvent
|
||||
|
||||
log.Printf("[STATUS] Elapsed: %.0fs/%ds | Events: %d | Last event: %ds ago",
|
||||
elapsed, *duration, receivedCount.Load(), timeSinceLastEvent)
|
||||
|
||||
// Warn if no events for a while (but only if we've seen events before)
|
||||
if receivedCount.Load() > 0 && timeSinceLastEvent > 30 {
|
||||
log.Printf("⚠ Warning: No events received for %ds - subscription may have dropped", timeSinceLastEvent)
|
||||
}
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
// Wait for test duration
|
||||
log.Printf("Test running for %d seconds...", *duration)
|
||||
log.Println("(You can publish events to the relay in another terminal)")
|
||||
log.Println()
|
||||
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
// Test completed or interrupted
|
||||
case <-time.After(time.Until(endTime)):
|
||||
// Duration elapsed
|
||||
}
|
||||
|
||||
// Wait a bit for final events
|
||||
time.Sleep(2 * time.Second)
|
||||
cancel()
|
||||
|
||||
// Wait for reader to finish
|
||||
select {
|
||||
case <-readDone:
|
||||
case <-time.After(5 * time.Second):
|
||||
log.Println("Reader goroutine didn't exit cleanly")
|
||||
}
|
||||
|
||||
// Send CLOSE
|
||||
closeMsg := []interface{}{"CLOSE", subscriptionID}
|
||||
closeMsgBytes, _ := json.Marshal(closeMsg)
|
||||
conn.WriteMessage(websocket.TextMessage, closeMsgBytes)
|
||||
|
||||
// Print results
|
||||
log.Println()
|
||||
log.Println("===================================")
|
||||
log.Println("Test Results")
|
||||
log.Println("===================================")
|
||||
log.Printf("Duration: %.1f seconds", time.Since(startTime).Seconds())
|
||||
log.Printf("Events received: %d", receivedCount.Load())
|
||||
log.Printf("Subscription ID: %s", subscriptionID)
|
||||
|
||||
lastEvent := lastEventTime.Load()
|
||||
if lastEvent > startTime.Unix() {
|
||||
log.Printf("Last event: %ds ago", time.Now().Unix()-lastEvent)
|
||||
}
|
||||
|
||||
log.Println()
|
||||
|
||||
// Determine pass/fail
|
||||
received := receivedCount.Load()
|
||||
testDuration := time.Since(startTime).Seconds()
|
||||
|
||||
if received == 0 {
|
||||
log.Println("⚠ No events received during test")
|
||||
log.Println("This is expected if no events were published")
|
||||
log.Println("To test properly, publish events while this is running:")
|
||||
log.Println()
|
||||
log.Println(" # In another terminal:")
|
||||
log.Printf(" ./orly # Make sure relay is running\n")
|
||||
log.Println()
|
||||
log.Println(" # Then publish test events (implementation-specific)")
|
||||
} else {
|
||||
eventsPerSecond := float64(received) / testDuration
|
||||
log.Printf("Rate: %.2f events/second", eventsPerSecond)
|
||||
|
||||
lastEvent := lastEventTime.Load()
|
||||
timeSinceLastEvent := time.Now().Unix() - lastEvent
|
||||
|
||||
if timeSinceLastEvent < 10 {
|
||||
log.Println()
|
||||
log.Println("✓ TEST PASSED - Subscription remained stable")
|
||||
log.Println("Events were received recently, indicating subscription is still active")
|
||||
} else {
|
||||
log.Println()
|
||||
log.Printf("⚠ Potential issue - Last event was %ds ago", timeSinceLastEvent)
|
||||
log.Println("Subscription may have dropped if events were still being published")
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user