# AdoNetStreamOptions.EvictionInterval

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming.adonet/orleans.configuration.adonetstreamoptions/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.streaming.adonet/orleans.configuration.adonetstreamoptions/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/AdoNet/Orleans.Streaming.AdoNet/AdoNetStreamOptions.cs)

```csharp
public TimeSpan EvictionInterval
```

The period of time between eviction activities. These include moving expired messages to dead letters and removing dead letters after their own lifetime. This period is cluster wide and will not change with the number of silos.