AzureServiceBus Transport no longer supports setting PrefetchCount to zero

1

Hey,

one of your teams that upgraded to the newest version of the transport reported that disabling message prefetch is no longer possible, which contradicts the documentation:

To disable prefetching, prefetch count should be set to zero.

Starting with version 5 of the transport, the PrefetchCount property throws on negative or zero values: NServiceBus.Transport.AzureServiceBus/src/Transport/AzureServiceBusTransport.cs at master · Particular/NServiceBus.Transport.AzureServiceBus · GitHub

Is it no longer supported to disable prefetching or how should the new setup look like?

2

I suspect it’s a copy/paste bug and the method used should be ThrowIfNegative<T>(T, String).

3

Agree with @SeanFeldman that is probably a copy-paste bug that slipped through the reviews. You are right; it should be possible to set the prefetch count to zero.

4

I have raised PrefetchCount cannot be set to zero · Issue #1264 · Particular/NServiceBus.Transport.AzureServiceBus · GitHub

1 Like
5

Hi Geri,

Hot off the press: NServiceBus.Transport.AzureServiceBus 5.0.4 and 5.1.2 – Patch releases available

Daniel

6

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