Global.CloudStorage.SaveStorage() throw Serialization Exception

[sunkararp]

Hi Grapheengine team,

I’m getting Serialization Exception when I call Global.CloudStorage.SaveStorage() methid,
Any Idea how to fix this?

System.Runtime.Serialization.SerializationException
HResult=0x8013150C
Message=Type 'System.ValueTuple2[[Trinity.DynamicCluster.Storage.ReplicaInformation, Trinity.DynamicCluster, Version=2.0.10792.0, Culture=neutral, PublicKeyToken=null],[Trinity.DynamicCluster.PersistedSlice, Trinity.DynamicCluster, Version=2.0.10792.0, Culture=neutral, PublicKeyToken=null]]' in Assembly 'System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' is not marked as serializable. Source=mscorlib StackTrace: at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type) at System.Collections.Concurrent.ConcurrentDictionary2.GetOrAdd(TKey key, Func`2 valueFactory)
at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)
at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Type objectType, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, SerializationBinder binder)
at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteArray(WriteObjectInfo objectInfo, NameInfo memberNameInfo, WriteObjectInfo memberObjectInfo)
at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo)
at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
at Trinity.DynamicCluster.Utils.Serialize[T](T payload) in C:\Research\GraphEngine\src\Modules\GraphEngine.DynamicCluster\Trinity.DynamicCluster\Utils.cs:line 162
at Trinity.ServiceFabric.Infrastructure.Interfaces.ReliableTaskQueue.<>c__DisplayClass13_0.<b__0>d.MoveNext()

This exception was originally thrown at this call stack:
[External Code]
Trinity.DynamicCluster.Utils.Serialize(T) in Utils.cs
[External Code]

[TaviTruman]

sunkararp please post the offending code here so that I can assist your further.

[sunkararp]

My code is very simple, Service Fabric satefull remoting service & client
My code is here https://github.com/sunkararp/Ayushman.KgApplication.

Exception is happening when client calls Global.CloudStorage.SaveStorage() method at ln@231 of file https://github.com/sunkararp/Ayushman.KgApplication/blob/main/Ayushamn.KgClient/GraphEngineRemotingClient.cs

the client, calls protocol methods before calling Global.CloudStorage.SaveStorage()
the service, protocol me saves the data Global.LocalStorage.SaveStorage

[TaviTruman]

sunkararp you've done too much unnecessary work here. Firstly, you must use the graph data model generated via TSL; I do not see any TSL in your project. The Graph Engine TSL compiler will generate especially generated typed C# files for you. This is one of the very powerful aspects of the Graph Engine; the graph data model is codegen for you. You willl need to use those generated classes. It does not seem like you've read the documentation - you must do that and take a look at the Sample Graph Service Fabric project.

[sunkararp]

On server side, I'm using TSL generated code to write memory (like Global.LocalStorage.SavePatientNode(cell))
Please see my code https://github.com/sunkararp/Ayushman.KgApplication/tree/main/Ayushman.KgProtocols

[TaviTruman]

sunkararp Yikes - I did not see that - my bad. Are you using those same generated files in your remoting client?

[sunkararp]

Yes, client does following...

• Create TSL generated object
• Set all the properties
• Call the protocol method

` var organization = new OrganizationT();
organization.Id = o.Id;
organization.Name = o.NAME;
organization.Revenue = o.REVENUE;
organization.Phone = o.PHONE;
organization.Utilization = o.UTILIZATION;

            using var cell = new AddOrganizationRequestWriter(organization);
            using var res2 = m_trinity.AddOrganization(cell);`

[TaviTruman]

sunkararp Just a moment - I am testing your project.

[TaviTruman]

sunkararp Just a moment - you are running a back release of the Graph Engine Library.

[sunkararp]

I didn't understand your question.
Below is what I did...

• I cloned GraphEngine repo
• Compiled locally, Windows10 & VS2019
• In my application, used the locally generated Nugets

[TaviTruman]

sunkararp no worries - I have made many updates to my local repro and so my local build is ahead of yours. I just need to get to one of my dev machines with that build on it.

[sunkararp]

Just uploaded Data files here

[TaviTruman]

sunkararp Thanks!

[TaviTruman]

sunkararp I'll have the fix for you shortly after I get other production matters resolved.

[TaviTruman]

sunkararp I'm working on your code now and I will have an update for you shortly.

[TaviTruman]

sunkararp found the problem! I'm updating your project with corrections. I'll come back here when I the VS solution ready.