Trading Bot Server Outage Recovery: The Zero-Human VPS Crash Runbook

Cloud VPS providers reboot for kernel updates, network switches flap, and operating system OOM killers terminate Python processes. When your trading bot restarts, it must automatically reconcile local ledger state against exchange reality without human intervention.

1. The 3-Way State Reconciliation Theorem

On boot, the bot compares: State_Local (persisted JSON/SQLite), State_Exchange_Positions (Binance positionRisk), and State_Exchange_Orders (openAlgoOrders). If discrepancies exist, exchange reality is canonical: the bot heals local state and confirms stop-loss protection.

Python: Autonomous State Reconciliation on Bot Boot

def reconcile_state_on_boot(local_ledger_path: str, exchange_client):
    positions = exchange_client.get_active_positions()
    open_stops = exchange_client.get_active_algo_stops()
    
    for pos in positions:
        sym = pos["symbol"]
        qty = float(pos["positionAmt"])
        matching_stop = [s for s in open_stops if s["symbol"] == sym]
        
        if not matching_stop and qty != 0:
            # UNPROTECTED ORPHAN POSITION DETECTED!
            # Place hard stop immediately based on 1.5x ATR emergency distance
            print(f"[RECONCILE_ALERT] Healing unprotected position: {sym} Qty={qty}")
            exchange_client.place_emergency_stop(sym, qty)
            
    print("[+] State reconciliation complete. Bot is safe to resume execution.")

Frequently Asked Questions