Ramblings of an integration guy

Often customers will say 'I want reliable messaging'. At this point I ask lots of questions – the main one being 'what happens if you lose that message'. Only then can I actually start to ascertain what *they* mean by 'reliable' In this blog I'd like to cover the messaging terms 'persistence', reliability', 'transactionality' and 'acknowledgements'. These are all terms used when talking about messaging. Unfortunately, it's the ease with which each term can interchange with the other that is the problem. Aligned to all these terms are the more specification like: at-most-once, at-least-once and once-and-once only. 

Following quickly on from my last post about the  WSO2 MessageStore and Processor overview  - Here's a quick guide to actually using the stuff and setting it up using WSO2's own message broker