# DefaultCacheMonitor.TrackMessagesPurged(long)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.providers.streams.common.defaultcachemonitor/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.providers.streams.common.defaultcachemonitor/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming/Common/Monitors/DefaultCacheMonitor.cs#L125)

```csharp
public void TrackMessagesPurged(long messagePurged)
```

Called when messages are purged from the cache.

### Parameters

- `messagePurged` (`long`): The number of messages purged.