启动 VM 后 IoT Edge 运行时错误 400 已关闭 1 个月以上

Question

我有一个在 Ubuntu 16.04 上运行 IoT Edge 1.0.10.3 的工作虚拟机，我在过去一个月左右关闭了它。

今天打开它发现：

• 我可以正常启动所有模块。他们都报告正在运行
• 运行时响应为：400 -- The deployment configuration is malformed or invalid
• 运行 iotedge 检查，似乎没有任何错误
• 当我尝试set modules 时，在 IoT 边缘模块下：There are no listed IoT Edge Modules
• 我还在 EdgeHub 日志中收到以下错误：

<4> 2021-01-19 22:27:12.834 +00:00 [WRN] - Error getting edge hub config from twin desired properties
System.ArgumentException: schemaVersion is null or whitespace.
   at Microsoft.Azure.Devices.Edge.Util.Preconditions.CheckArgument(Boolean expression, String message) in /home/vsts/work/1/s/edge-util/src/Microsoft.Azure.Devices.Edge.Util/Preconditions.cs:line 73
   at Microsoft.Azure.Devices.Edge.Util.Preconditions.CheckNonWhiteSpace(String value, String paramName) in /home/vsts/work/1/s/edge-util/src/Microsoft.Azure.Devices.Edge.Util/Preconditions.cs:line 192
   at Microsoft.Azure.Devices.Edge.Hub.Core.Config.EdgeHubDesiredProperties..ctor(String schemaVersion, IDictionary`2 routes, StoreAndForwardConfiguration storeAndForwardConfiguration) in /home/vsts/work/1/s/edge-hub/src/Microsoft.Azure.Devices.Edge.Hub.Core/config/EdgeHubDesiredProperties.cs:line 14
   at lambda_method(Closure , Object[] )
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObjectUsingCreatorWithParameters(JsonReader reader, JsonObjectContract contract, JsonProperty containerProperty, ObjectConstructor`1 creator, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonSerializer.Deserialize(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value)
   at Microsoft.Azure.Devices.Edge.Hub.Core.Config.TwinConfigSource.GetConfigInternal() in /home/vsts/work/1/s/edge-hub/src/Microsoft.Azure.Devices.Edge.Hub.Core/config/TwinConfigSource.cs:line 97
   at Microsoft.Azure.Devices.Edge.Hub.Core.Config.TwinConfigSource.GetConfigInternal() in /home/vsts/work/1/s/edge-hub/src/Microsoft.Azure.Devices.Edge.Hub.Core/config/TwinConfigSource.cs:line 105

在过去一个月离线时会发生什么导致边缘进入不一致状态？

Answer 1

根据docs，您的日志引用的$schemaVersion 是在1.0.10 中引入的。文档说该属性是推荐的，但运行时似乎需要它。在您的评论中，您包含了所需的属性，但缺少 $schemaVersion。尝试设置以下所需属性：

"properties":{
  "desired":{
     "routes":{},
     "schemaVersion": "1.1",
     "$metadata":{
        "$lastUpdated":"2020-11-25T18:26:39.4780665Z",
        "$lastUpdatedVersion":5,
        "routes":{
           "$lastUpdated":"2020-11-25T15:03:42.6671499Z",
           "$lastUpdatedVersion":4
        }
     }
  }
}