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v1.9.0: Connection Resilience

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@NaturalDevCR NaturalDevCR released this 30 Jan 04:19
· 113 commits to main since this release
v1.9.0
4d9496c

🛡️ TCP Streamer v1.9.0 - Connection Resilience

This release fixes a critical issue that caused connection storms when the network briefly dropped, which crashed Snapserver.

🔥 What Happened

When the network dropped for any device the app opened 10 simultaneous connections in 2 minutes. This triggered the server's watchdog to send a fatal signal (SIGUSR1), killing the audio server and silencing the entire hotel.

✅ What's Fixed

1. Enhanced Exponential Backoff

  • Minimum reconnection delay increased from 1s → 2s
  • Added random jitter (±500ms) to prevent multiple clients reconnecting at the same time

2. Explicit Socket Destruction

  • On write errors, the socket is now explicitly closed with a proper FIN signal
  • Prevents "zombie connections" that keep the port occupied

3. Adaptive Drain Freeze

  • When disconnected, the app stops trying to drain the buffer aggressively
  • Clears stale audio so you get fresh sound when reconnecting
  • Prevents CPU spinning at 100% during network outages

📊 Before vs After

Scenario v1.8.9 v1.9.0
Network drop 10 connections in 2 min Max 1 per 2+ seconds
Reconnect timing 1s initial delay 2s + jitter
Socket on error Silent drop Proper FIN + 100ms wait
CPU during outage 100% spin Normal pacing
Assets 9
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