queue – w3toppers.com

Using many consumers in SQS Queue

What is the best approach to guarantee that a message will be processed once? You’re asking for a guarantee – you won’t get one. You can reduce probability of a message being processed more than once to a very small amount, but you won’t get a guarantee. I’ll explain why, along with strategies for reducing … Read more

RabbitMQ – Message order of delivery

Well, let’s take a closer look at the scenario you are describing above. I think it’s important to paste the documentation immediately prior to the snippet in your question to provide context: Section 4.7 of the AMQP 0-9-1 core specification explains the conditions under which ordering is guaranteed: messages published in one channel, passing through … Read more