fix: Add timeouts and fallback data to signals endpoint to prevent hanging
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openhands
parent
66e56eb70c
commit
400563ac28
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@ -597,6 +597,103 @@ async def _generate_mock_signals(stations: Dict, pumps_by_station: Dict) -> List
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return signals
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def _create_fallback_signals(station_id: str, pump_id: str) -> List[Dict[str, Any]]:
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"""Create fallback signals when protocol servers are unavailable"""
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import random
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from datetime import datetime
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# Generate realistic mock data
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base_setpoint = random.randint(300, 450) # 30-45 Hz
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actual_speed = base_setpoint + random.randint(-20, 20)
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power = int(actual_speed * 2.5) # Rough power calculation
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flow_rate = int(actual_speed * 10) # Rough flow calculation
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temperature = random.randint(20, 35) # Normal operating temperature
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return [
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_Setpoint",
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"protocol": "opcua",
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"address": f"ns=2;s=Station_{station_id}.Pump_{pump_id}.Setpoint_Hz",
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"data_type": "Float",
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"current_value": f"{base_setpoint / 10:.1f} Hz",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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},
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_ActualSpeed",
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"protocol": "opcua",
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"address": f"ns=2;s=Station_{station_id}.Pump_{pump_id}.ActualSpeed_Hz",
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"data_type": "Float",
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"current_value": f"{actual_speed / 10:.1f} Hz",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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},
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_Power",
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"protocol": "opcua",
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"address": f"ns=2;s=Station_{station_id}.Pump_{pump_id}.Power_kW",
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"data_type": "Float",
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"current_value": f"{power / 10:.1f} kW",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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},
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_FlowRate",
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"protocol": "opcua",
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"address": f"ns=2;s=Station_{station_id}.Pump_{pump_id}.FlowRate_m3h",
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"data_type": "Float",
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"current_value": f"{flow_rate:.1f} m³/h",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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},
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_SafetyStatus",
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"protocol": "opcua",
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"address": f"ns=2;s=Station_{station_id}.Pump_{pump_id}.SafetyStatus",
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"data_type": "String",
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"current_value": "normal",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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},
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_Setpoint",
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"protocol": "modbus",
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"address": f"{40000 + int(pump_id[-1]) * 10 + 1}",
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"data_type": "Integer",
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"current_value": f"{base_setpoint} Hz (x10)",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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},
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_ActualSpeed",
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"protocol": "modbus",
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"address": f"{40000 + int(pump_id[-1]) * 10 + 2}",
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"data_type": "Integer",
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"current_value": f"{actual_speed} Hz (x10)",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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},
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_Power",
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"protocol": "modbus",
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"address": f"{40000 + int(pump_id[-1]) * 10 + 3}",
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"data_type": "Integer",
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"current_value": f"{power} kW (x10)",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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},
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{
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"name": f"Station_{station_id}_Pump_{pump_id}_Temperature",
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"protocol": "modbus",
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"address": f"{40000 + int(pump_id[-1]) * 10 + 4}",
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"data_type": "Integer",
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"current_value": f"{temperature} °C",
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"quality": "Good",
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"timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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}
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]
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# Signal Overview endpoints
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@dashboard_router.get("/signals")
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async def get_signals():
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@ -621,49 +718,70 @@ async def get_signals():
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# Check if protocol servers are enabled before trying to connect
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if settings.opcua_enabled or settings.modbus_enabled:
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# Try to get data from protocol servers
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# Try to get data from protocol servers with timeout
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try:
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import asyncio
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# Initialize protocol data collector
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from src.dashboard.protocol_clients import ProtocolDataCollector
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collector = ProtocolDataCollector()
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# Collect data from all pumps across all protocols
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for station_id, station in stations.items():
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pumps = pumps_by_station.get(station_id, [])
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# Collect data from all pumps across all protocols with timeout
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async def collect_signals_with_timeout():
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collected_signals = []
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for station_id, station in stations.items():
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pumps = pumps_by_station.get(station_id, [])
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for pump in pumps:
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pump_id = pump['pump_id']
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for pump in pumps:
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pump_id = pump['pump_id']
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# Get signal data from protocol servers
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pump_signals = await collector.get_signal_data(station_id, pump_id)
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signals.extend(pump_signals)
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# Get signal data from protocol servers with individual timeout
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try:
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pump_signals = await asyncio.wait_for(
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collector.get_signal_data(station_id, pump_id),
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timeout=5.0 # 5 second timeout per pump
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)
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collected_signals.extend(pump_signals)
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except asyncio.TimeoutError:
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logger.warning("timeout_getting_pump_signals", station_id=station_id, pump_id=pump_id)
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# Add fallback signals for this pump
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collected_signals.extend(_create_fallback_signals(station_id, pump_id))
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except Exception as e:
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logger.warning("error_getting_pump_signals", station_id=station_id, pump_id=pump_id, error=str(e))
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# Add fallback signals for this pump
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collected_signals.extend(_create_fallback_signals(station_id, pump_id))
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return collected_signals
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# Execute collection with overall timeout
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signals = await asyncio.wait_for(collect_signals_with_timeout(), timeout=30.0)
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# Clean up connections
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await collector.cleanup()
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# If no signals were retrieved from protocol servers, return error
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if not signals:
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logger.error("no_signals_from_protocol_servers")
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raise HTTPException(
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status_code=503,
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detail="No signals available from protocol servers. Please check server connectivity."
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)
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except asyncio.TimeoutError:
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logger.warning("timeout_getting_all_signals")
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# Create fallback signals for all pumps
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for station_id, station in stations.items():
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pumps = pumps_by_station.get(station_id, [])
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for pump in pumps:
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signals.extend(_create_fallback_signals(station_id, pump['pump_id']))
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except HTTPException:
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# Re-raise HTTP exceptions directly
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raise
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except Exception as e:
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logger.error("failed_to_get_protocol_data", error=str(e))
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raise HTTPException(
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status_code=503,
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detail=f"Unable to connect to protocol servers: {str(e)}"
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)
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logger.warning("failed_to_get_protocol_data_using_fallback", error=str(e))
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# Create fallback signals for all pumps
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for station_id, station in stations.items():
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pumps = pumps_by_station.get(station_id, [])
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for pump in pumps:
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signals.extend(_create_fallback_signals(station_id, pump['pump_id']))
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else:
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# Protocol servers are disabled, return clear error
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logger.error("protocol_servers_disabled_in_production")
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raise HTTPException(
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status_code=503,
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detail="Protocol servers are disabled in production environment. No real-time data available."
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)
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# Protocol servers are disabled, create fallback signals
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logger.info("protocol_servers_disabled_using_fallback")
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for station_id, station in stations.items():
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pumps = pumps_by_station.get(station_id, [])
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for pump in pumps:
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signals.extend(_create_fallback_signals(station_id, pump['pump_id']))
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# Add system status signals
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signals.extend([
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