[IGNITE-8588] .NET: Serialization issue when derived type hides base type member

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4
• Fix Version/s: 2.8
• Component/s: platforms
• Labels: .NET
• Assignee: Alexandr Shapkin
• Reporter: Pavel Tupitsyn
• Created: 23/May/18 19:11
• Updated: 10/Oct/19 13:11
• Resolved: 10/Apr/19 06:50

Description

The following class structure causes an exception that is hard to understand (when putting instance of B into Ignite cache):

public class A
{
  public int bob;
} 

public class B : A
{
  public int bob;
}

Exception:

 Apache.Ignite.Core.Binary.BinaryObjectException: Conflicting field IDs [type=SubGridsRequestArgument, field1=Filters, field2=Filters, fieldId=-854547461]

   at Apache.Ignite.Core.Impl.Binary.BinaryReflectiveSerializerInternal.Register(Type type, Int32 typeId, IBinaryNameMapper converter, IBinaryIdMapper idMapper, Boolean forceTimestamp)

   at Apache.Ignite.Core.Impl.Binary.Marshaller.GetSerializer(BinaryConfiguration cfg, BinaryTypeConfiguration typeCfg, Type type, Int32 typeId, IBinaryNameMapper nameMapper, IBinaryIdMapper idMapper, ILogger log)

   at Apache.Ignite.Core.Impl.Binary.Marshaller.AddUserType(Type type, Int32 typeId, String typeName, Boolean registered, BinaryFullTypeDescriptor desc)

   at Apache.Ignite.Core.Impl.Binary.Marshaller.RegisterType(Type type, BinaryFullTypeDescriptor desc)

   at Apache.Ignite.Core.Impl.Binary.Marshaller.GetDescriptor(Type type)

   at Apache.Ignite.Core.Impl.Binary.BinaryWriter.Write[T](T obj)

   at Apache.Ignite.Core.Impl.Deployment.PeerLoadingExtensions.WriteWithPeerDeployment(BinaryWriter writer, Object o)

   at Apache.Ignite.Core.Impl.Binary.BinarySystemTypeSerializer`1.WriteBinary[T1](T1 obj, BinaryWriter writer)

   at Apache.Ignite.Core.Impl.Binary.BinaryWriter.Write[T](T obj)

   at Apache.Ignite.Core.Impl.Binary.BinarySystemTypeSerializer`1.WriteBinary[T1](T1 obj, BinaryWriter writer)

   at Apache.Ignite.Core.Impl.Binary.BinaryWriter.Write[T](T obj)

   at Apache.Ignite.Core.Impl.Binary.BinaryWriter.WriteObjectDetached[T](T o)

   at Apache.Ignite.Core.Impl.Compute.ComputeImpl.WriteJob(IComputeJob job, BinaryWriter writer)

   at Apache.Ignite.Core.Impl.Compute.ComputeImpl.<>c__DisplayClass1d`3.<ExecuteClosures0>b__1a(BinaryWriter writer)

   at Apache.Ignite.Core.Impl.PlatformTargetAdapter.WriteToStream(Action`1 action, IBinaryStream stream, Marshaller marsh)

   at Apache.Ignite.Core.Impl.PlatformJniTarget.InStreamOutObject(Int32 type, Action`1 writeAction)

   at Apache.Ignite.Core.Impl.Compute.ComputeImpl.ExecuteClosures0[TArg,TJobRes,TReduceRes](IComputeTask`3 task, IComputeJob job, IEnumerable`1 jobs, Int32 opId, Int32 jobsCount, Action`1 writeAction)

   --- End of inner exception stack trace ---

   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)

   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)

   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout)

   at VSS.TRex.GridFabric.Requests.SubGridRequestsProgressive`2.Execute() in C:\Dev\VSS.TRex\src\netstandard\RaptorClassLibrary.netstandard\GridFabric\Requests\SubGridRequestsProgressive.cs:line 107

   at VSS.TRex.Pipelines.SubGridPipelineBase`3.Initiate() in C:\Dev\VSS.TRex\src\netstandard\RaptorClassLibrary.netstandard\Pipelines\SubGridPipelineBase.cs:line 241

   at VSS.TRex.Rendering.PlanViewTileRenderer.ExecutePipeline() in C:\Dev\VSS.TRex\src\netstandard\RaptorClassLibrary.netstandard\Rendering\PlanViewTileRenderer.cs:line 262

---> (Inner Exception #0) Apache.Ignite.Core.Binary.BinaryObjectException: Conflicting field IDs [type=SubGridsRequestArgument, field1=Filters, field2=Filters, fieldId=-854547461]

   at Apache.Ignite.Core.Impl.Binary.BinaryReflectiveSerializerInternal.Register(Type type, Int32 typeId, IBinaryNameMapper converter, IBinaryIdMapper idMapper, Boolean forceTimestamp)

   at Apache.Ignite.Core.Impl.Binary.Marshaller.GetSerializer(BinaryConfiguration cfg, BinaryTypeConfiguration typeCfg, Type type, Int32 typeId, IBinaryNameMapper nameMapper, IBinaryIdMapper idMapper, ILogger log)

   at Apache.Ignite.Core.Impl.Binary.Marshaller.AddUserType(Type type, Int32 typeId, String typeName, Boolean registered, BinaryFullTypeDescriptor desc)

   at Apache.Ignite.Core.Impl.Binary.Marshaller.RegisterType(Type type, BinaryFullTypeDescriptor desc)

   at Apache.Ignite.Core.Impl.Binary.Marshaller.GetDescriptor(Type type)

   at Apache.Ignite.Core.Impl.Binary.BinaryWriter.Write[T](T obj)

   at Apache.Ignite.Core.Impl.Deployment.PeerLoadingExtensions.WriteWithPeerDeployment(BinaryWriter writer, Object o)

   at Apache.Ignite.Core.Impl.Binary.BinarySystemTypeSerializer`1.WriteBinary[T1](T1 obj, BinaryWriter writer)

   at Apache.Ignite.Core.Impl.Binary.BinaryWriter.Write[T](T obj)

   at Apache.Ignite.Core.Impl.Binary.BinarySystemTypeSerializer`1.WriteBinary[T1](T1 obj, BinaryWriter writer)

   at Apache.Ignite.Core.Impl.Binary.BinaryWriter.Write[T](T obj)

   at Apache.Ignite.Core.Impl.Binary.BinaryWriter.WriteObjectDetached[T](T o)

   at Apache.Ignite.Core.Impl.Compute.ComputeImpl.WriteJob(IComputeJob job, BinaryWriter writer)

   at Apache.Ignite.Core.Impl.Compute.ComputeImpl.<>c__DisplayClass1d`3.<ExecuteClosures0>b__1a(BinaryWriter writer)

   at Apache.Ignite.Core.Impl.PlatformTargetAdapter.WriteToStream(Action`1 action, IBinaryStream stream, Marshaller marsh)

   at Apache.Ignite.Core.Impl.PlatformJniTarget.InStreamOutObject(Int32 type, Action`1 writeAction)

   at Apache.Ignite.Core.Impl.Compute.ComputeImpl.ExecuteClosures0[TArg,TJobRes,TReduceRes](IComputeTask`3 task, IComputeJob job, IEnumerable`1 jobs, Int32 opId, Int32 jobsCount, Action`1 writeAction)<---

See user list thread for more details:
http://apache-ignite-users.70518.x6.nabble.com/Binary-type-has-different-fields-error-td21540.html

Issue Links

• links to: GitHub Pull Request #6359
• links to: User list