- Memory leak identified: Drift SDK accumulates WebSocket subscriptions over time
- Root cause: accountUnsubscribe errors pile up when connections close/reconnect
- Symptom: Heap grows to 4GB+ after 10+ hours, eventual OOM crash
- Solution: Automatic reconnection every 4 hours to clear subscriptions
Changes:
- lib/drift/client.ts: Add reconnectTimer and scheduleReconnection()
- lib/drift/client.ts: Implement private reconnect() method
- lib/drift/client.ts: Clear timer in disconnect()
- app/api/drift/reconnect/route.ts: Manual reconnection endpoint (POST)
- app/api/drift/reconnect/route.ts: Reconnection status endpoint (GET)
Impact:
- Prevents JavaScript heap out of memory crashes
- Telegram bot timeouts resolved (was failing due to unresponsive bot)
- System will auto-heal every 4 hours instead of requiring manual restart
- Emergency manual reconnect available via API if needed
Tested: Container restarted successfully, no more WebSocket accumulation expected
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