Dynamics CRM WebAPI 中的 PATCH 引发异常 Generic SQL 错误

Question

我正在开发一个与 Dynamics CRM Online 2016 对话的应用程序。

我正在为联系人修补一个简单的对象。有效负载看起来像这样 -

PATCH https://<crm_tenant>.crm4.dynamics.com/api/data/v8.1/contacts(00000000-0000-0000-0000-000000000000)
{
  "emailaddress1": "test@emailaddress.com",
  "firstname": "John"
}

这适用于 POSTMAN 或任何其他 REST 客户端。但是，如果我从并行修补大约 34 个联系人（一次 4 个）的应用程序中执行此操作。对于大多数联系人，我都遇到了这个例外 -

{
  "error":{
    "code":"","message":"Generic SQL error.","innererror":{
      "message":"Generic SQL error.","type":"System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]","stacktrace":"   at Microsoft.Crm.Extensibility.OrganizationSdkServiceInternal.Execute(OrganizationRequest request, CorrelationToken correlationToken, CallerOriginToken callerOriginToken, WebServiceType serviceType, Boolean checkAdminMode, ExecutionContext executionContext)\r\n   at Microsoft.Crm.Extensibility.OData.CrmODataExecutionContext.Upsert(Entity entity)\r\n   at Microsoft.Crm.Extensibility.OData.CrmODataExecutionContext.Update(Entity entity, UpdateOption updateOption)\r\n   at Microsoft.Crm.Extensibility.OData.CrmODataServiceDataProvider.UpdateEdmEntity(CrmODataExecutionContext context, String edmEntityName, String entityKeyValue, EdmEntityObject entityObject)\r\n   at Microsoft.Crm.Extensibility.OData.EntityController.PatchEntity(String entityName, String key, EdmEntityObject entityDelta)\r\n   at lambda_method(Closure , Object , Object[] )\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()"
    }
  }
}

我尝试在互联网上搜索可能的解决方案，但找不到任何解决方案。任何帮助将不胜感激。

拉胡尔。

Answer 1

CRM Online 不允许超过 2 个并发请求

限制并发调用 - 对于 Microsoft Dynamics CRM Online，每个组织限制 2 个并发 ExecuteMultipleRequest 执行。如果超过该限制，则在执行第一个请求之前会引发“服务器忙”错误。对于本地部署，默认情况下不启用限制。此限制的部署设置为 ExecuteAsyncPerOrgMaxConnectionsPerServer。

https://msdn.microsoft.com/en-us/library/jj863631.aspx#limitations

Answer 2

我不确定并行运行是否会导致问题，但如果您想一次更新大量记录，最好使用批处理请求。

这是文档： https://msdn.microsoft.com/en-us/library/mt607719.aspx

我发现实现起来有点棘手，因为构建批处理请求对使用正确的格式非常敏感。