# QueueBalancerBase.UnSubscribeFromQueueDistributionChangeEvents(IStreamQueueBalanceListener)

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

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming/QueueBalancer/QueueBalancerBase.cs#L90-L95)

```csharp
public bool UnSubscribeFromQueueDistributionChangeEvents(IStreamQueueBalanceListener observer)
```

Unsubscribes from receiving queue distribution notifications.

### Parameters

- `observer` (`IStreamQueueBalanceListener`): An observer interface to receive queue distribution change notifications.

### Returns

A value indicating whether teh unsubscription succeeded or not