May 2009
Intermediate to advanced
330 pages
10h 34m
English
Content preview from Java Message Service, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 7. Guaranteed Messaging and Transactions
Guaranteed messaging is more than just a mechanism for handling disconnected consumers. It is a crucial part of the messaging paradigm and is the key to understanding the design of a distributed messaging system. This chapter examines why guaranteed messaging works, including message acknowledgment protocols that are part of guaranteed messaging and how to use client acknowledgments in applications. This chapter will also cover the design patterns of JMS that enable you to build guaranteed messaging into applications, and discuss failure scenarios, the rules that apply to recovery, and how to deal with recovery semantics in a JMS application.
Guaranteed Messaging
Before we discuss the parts of guaranteed messaging, we need to review and define some new terms. A JMS client application uses the JMS API. Each JMS vendor provides an implementation of the JMS API on the client, which we call the client runtime. In addition to the client runtime, the JMS vendor also provides some kind of message “server” that implements the routing and delivery of messages. The client runtime and the message server are collectively referred to as the JMS provider. Regardless of the architecture used by a JMS provider, the logical parts of a JMS system are the same. The number of processes and their location on the network is unimportant for this discussion. (In Chapter 10, you will see that some providers use a multicast architecture in which there is no ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.