NServiceBus 4 and DTC

Question

I am looking at upgrading our NServiceBus 3.3.3 system to version 4.

I read a few posts that seem to indicate that version 4 can work without DTC. Is this true?

Basically, this is what I am considering doing:

1. Changing my handlers to be able to deal with duplicate messages
2. Upgrading to Version 4 of NServiceBus
3. Turning off DTC on my database

From what I have read, I should be able to do this and not lose any messages. (I work for a medical company and losing a message means we lose a patient's data (very very bad).)

The only other thing of note is that my system runs with a distributor that then gives work to several workers. The message through put is massive, (I am hopping that removing DTC will improve throughput).

As a side note, would this be any different if I switched from MSMQ to RabbitMQ?

Answer 1

Just use this in your configuration of the host:

Configure.Transactions.Disable();

But remember to handle all your errors properly and rollback any opened transactions manually.