# AdoNetStreamOptions.EvictionBatchSize

[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 int EvictionBatchSize
```

The maximum number of messages affected by an eviction batch.