# ItemDelivered.ClusterId

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streaming.diagnostics.streamingevents.itemdelivered/) | [Fields](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streaming.diagnostics.streamingevents.itemdelivered/fields/)

[Source](https://github.com/dotnet/orleans/blob/1644940b035c7bdf215a4fd7135757c06bcfe9ec/src/Orleans.Streaming/Diagnostics/StreamingEvents.cs)

```csharp
public readonly string ClusterId
```

The identifier of the cluster associated with the delivery.