当使用通用的奥尔良谷物时，“关键词不在词典中”

Question

Just upgraded to 1.3.0 and am having issue with generic grains.

An example interface and class that's showing this issue:

public interface IGenericTest<T> : IGrainWithIntegerKey
{
    Task<T> PrintType(T obj);
}



public class GenericTestGrain<T> : Grain, IGenericTest<T>
{
    public Task<T> Print(T obj)
    {
        Debug.WriteLine("TEST");
        return Task.FromResult(obj);
    }
}

then using it like:

var grain = await GrainFactory.GetGrain<IGenericTest<int>>(0); // Runs without error.
await grain.Print(1);

Getting the grain seems to be fine, but when I call the method on the grain I get:

System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.

at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at Orleans.InterceptedMethodInvokerCache.GetInterfaceToImplementationMap(Int32 interfaceId, Type implementationType)
at Orleans.InterceptedMethodInvokerCache.CreateInterceptedMethodInvoker(Type implementationType, Int32 interfaceId, IGrainMethodInvoker invoker)
at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
at Orleans.InterceptedMethodInvokerCache.GetOrCreate(Type implementationType, Int32 interfaceId, IGrainMethodInvoker invoker)
at Orleans.Runtime.InsideRuntimeClient.InvokeWithInterceptors(IAddressable target, InvokeMethodRequest request, IGrainMethodInvoker invoker)
at Orleans.Runtime.InsideRuntimeClient.<Invoke>d__57.MoveNext()

Is there something I'm missing? Maybe some new configuration? This worked fine with the previous version I was using.

EDIT:

Seems like it's an issue with the invoke interceptor:

providerRuntime.SetInvokeInterceptor((method, request, grain, invoker) => { return invoker.Invoke(grain, request); });

When that's removed everything works.

Answer 1

问题在这里得到解答： https ： //github.com/dotnet/orleans/issues/2358这是一个错误。