Multiple subscribers in NServiceBus
I'm getting started with NServiceBus and have a question about the Pubsub sample.
My intention was to have multiple instances of Publisher1 running and receiving the message sent from the publisher. I also hacked the Publisher to only send messages of 开发者_如何学Pythonthe eventMessage type.
But if I start the publisher and three instances of Subscriber1, only one of them gets the message at a time.
why is that? Is it a config setting or something else?
This is what I've tried which returns an exception "Exception when starting endpoint, error has been logged. Reason: Cannot configure property before the component has been configured. Please call 'Configure' first.":
using NServiceBus;
namespace Subscriber1
{
public class EndpointConfig : IConfigureThisEndpoint, AsA_Server
{
}
public class OverrideInputQueue : IWantCustomInitialization
{
public void Init()
{
Configure
.Instance
.Configurer
.ConfigureProperty<NServiceBus.Config.MsmqTransportConfig>(t => t.InputQueue, "testQueue");
}
}
}
/J
NServiceBus assumes that you have one input queue per process. Make sure that each of your subscribers are configured with a unique input queue. If not all three will be polling the same queue producing the behavior you're describing.
To do this you would probably have to copy paste sub1 to 3 different folders, modfying the app.config and start them up.
Hope this helps!
You should use this-
Configure.Instance.Configurer.ConfigureProperty<NServiceBus.Unicast.Transport.Msmq.MsmqTransport>(msmq => msmq.InputQueue, "SomeQueueHere");
Make sure you use MsmqTransport and not MsmqTransportConfig as you mentioned.
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