调度执行器代理MALFORMED_REQUEST

Question

有人能给我一个提示，我在代理代码中调度执行器代理以抓取一些BACnet数据时犯了什么错误?

_now = get_aware_utc_now()
str_start = format_timestamp(_now)
_end = _now + td(seconds=10)
str_end = format_timestamp(_end)
peroidic_schedule_request = ["slipstream_internal/slipstream_hq/1100", # AHU
"slipstream_internal/slipstream_hq/5231", # eGuage Main
"slipstream_internal/slipstream_hq/5232", # eGuage RTU
"slipstream_internal/slipstream_hq/5240"] # eGuage PV
# send the request to the actuator
result = self.vip.rpc.call('platform.actuator', 'request_new_schedule', self.core.identity, 'my_schedule', 'HIGH', peroidic_schedule_request).get(timeout=90)
_log.debug(f'[Conninuous Roller Agent INFO] - ACTUATOR SCHEDULE EVENT SUCESS {result}')
meter_data_to_get = [self.ahu_clg_pid_topic,self.kw_pv_topic,self.kw_rtu_topic,self.kw_main_topic]
rpc_result = self.vip.rpc.call('platform.actuator', 'get_multiple_points', meter_data_to_get).get(timeout=90)
_log.debug(f'[Conninuous Roller Agent INFO] - kW data is {rpc_result}!')

RPC请求正在工作，我可以获得数据，但有一个执行器代理错误。

{'result': 'FAILURE', 'data': {}, 'info': 'MALFORMED_REQUEST: ValueError: too many values to unpack (expected 3)'}

完整回溯:

2021-09-13 20:47:23,334 (actuatoragent-1.0 1477601) __main__ ERROR: bad request: {'time': '2021-09-13T20:47:23.334762+00:00', 'requesterID': 'platform.continuousroller', 'taskID': 'my_schedule', 'type': 'NEW_SCHEDULE'}, [], too many values to unpack (expected 3)
2021-09-13 20:47:23,338 (continuousrolleragent-0.1 1559787) __main__ DEBUG: [Conninuous Roller Agent INFO] - ACTUATOR SCHEDULE EVENT SUCESS {'result': 'FAILURE', 'data': {}, 'info': 'MALFORMED_REQUEST: ValueError: too many values to unpack (expected 3)'}
2021-09-13 20:47:23,346 (forwarderagent-5.1 1548751) __main__ DEBUG: publish_to_historian number of items: 1
2021-09-13 20:47:23,346 (forwarderagent-5.1 1548751) __main__ DEBUG: Lasttime: 0 currenttime: 1631566043.0
2021-09-13 20:47:23,350 (forwarderagent-5.1 1548751) __main__ DEBUG: handled: 1 number of items
2021-09-13 20:47:23,710 (continuousrolleragent-0.1 1559787) __main__ DEBUG: [Conninuous Roller Agent INFO] - kW data is [{'slipstream_internal/slipstream_hq/1100/Cooling Capacity Status': 76.46278381347656, 'slipstream_internal/slipstream_hq/5231/REGCHG total_power': 59960.0, 'slipstream_internal/slipstream_hq/5232/REGCHG total_rtu_power': 44507.0, 'slipstream_internal/slipstream_hq/5240/REGCHG Generation': 1477.0}, {}]!

Answer 1

我怀疑调度程序，这是执行器的一个属性，遇到了一个问题，当从'请求'对象创建一个任务，它起源于'request_new_schedule'的'requests'参数。在您的情况下，'requests'是名为'periodic_schedule_request'的对象中的字符串列表。创建任务是执行器工作流的一部分，通过执行器的调度程序调用'requestronglots';看到https://github.com/VOLTTRON/volttron/blob/develop/services/core/ActuatorAgent/actuator/agent.py L1378和https://github.com/VOLTTRON/volttron/blob/a7bbdfcd4c82544bd743532891389f49b771b196/services/core/ActuatorAgent/actuator/scheduler.py L392

创建Task时，在Task构造函数方法中处理'requests'对象;看到https://github.com/VOLTTRON/volttron/blob/a7bbdfcd4c82544bd743532891389f49b771b196/services/core/ActuatorAgent/actuator/scheduler.py L148

我怀疑"请求"中的每个"请求"不是由恰好三个对象组成的对象，这可能是致动器错误的原因。但我可能错了。要确切地知道"请求"是什么样子，请返回日志并查找驱动器中的调试语句，该语句以"Got new schedule request:…"开头:(见https://github.com/VOLTTRON/volttron/blob/develop/services/core/ActuatorAgent/actuator/agent.py L1375)

在没有看到更多日志的情况下，作为第一步，我建议验证'requests'对象是否被正确处理;我还建议放置各种调试语句，特别是在https://github.com/VOLTTRON/volttron/blob/a7bbdfcd4c82544bd743532891389f49b771b196/services/core/ActuatorAgent/actuator/scheduler.py#L148中捕获此ValueError的来源。