Долговечные функции: ошибка при получении значения из UsePollingFileWatcher

Question

Эта ошибка только началась из ниоткуда.У меня есть надежная функция в Azure, которая работала около 6 недель без проблем и на прошлой неделе начала работать с ошибками.

Error getting value from 'UsePollingFileWatcher' on 'Microsoft.Extensions.FileProviders.PhysicalFileProvider'.

Я попробовал ее локально и получил ту же ошибку.Там не было абсолютно никаких изменений кода между тем, что работало и что не работает сейчас.Я действительно в замешательстве.

Newtonsoft.Json.JsonSerializationException
HResult=0x80131500
Message=Error getting value from 'UsePollingFileWatcher' on 'Microsoft.Extensions.FileProviders.PhysicalFileProvider'.
Source=Newtonsoft.Json
StackTrace:
at Newtonsoft.Json.Serialization.ExpressionValueProvider.GetValue(Object target)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues(JsonWriter writer, Object value, JsonContainerContract contract, JsonProperty member, JsonProperty property, JsonContract& memberContract, Object& memberValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList(JsonWriter writer, IEnumerable values, JsonArrayContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList(JsonWriter writer, IEnumerable values, JsonArrayContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize(JsonWriter jsonWriter, Object value, Type objectType)
at Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter jsonWriter, Object value, Type objectType)
at DurableTask.Core.Serializing.JsonDataConverter.Serialize(Object value, Boolean formatted)
at DurableTask.Core.Serializing.JsonDataConverter.Serialize(Object value)
at DurableTask.Core.TaskOrchestrationContext.<ScheduleTaskInternal>d__15.MoveNext()
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at DurableTask.Core.TaskOrchestrationContext.<ScheduleTaskToWorker>d__14`1.MoveNext()
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at DurableTask.Core.TaskOrchestrationContext.<ScheduleTask>d__13`1.MoveNext()
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Azure.WebJobs.DurableOrchestrationContext.<CallDurableTaskFunctionAsync>d__52`1.MoveNext()
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
at DGS.Interfaces.IAM.Functions.IdentityAccessManager.<OrchestrateUpdateDirectory>d__12.MoveNext() in C:\...\IAM.UpdateDirectory.cs:line 141

Inner Exception 1:
InvalidOperationException: Cannot modify UsePollingFileWatcher once file watcher has been initialized.

Answer 1

Callstack указывает, что исключение генерируется, когда Durable Task Framework пытается сериализовать некоторые входные данные, которые вы пытаетесь отправить в функцию действия. Я предполагаю, что объект, который вы отправляете, имеет сложный граф свойств, который где-то имеет указатель на PhysicalFileProvider, который не сериализуем.

Проверьте тип объекта, который вы отправляете в функцию активности, с помощью метода OrchestrateUpdateDirectory и посмотрите, могут ли он иметь некоторые дополнительные свойства, которые вы не ожидаете.