Book Image

Modernizing Oracle Tuxedo Applications with Python

By : Aivars Kalvans
Book Image

Modernizing Oracle Tuxedo Applications with Python

By: Aivars Kalvans

Overview of this book

Despite being developed in the 1980s, Oracle Tuxedo still runs a significant part of critical infrastructure and is not going away any time soon. Modernizing Oracle Tuxedo Applications with Python will help you get to grips with the most important Tuxedo concepts by writing Python code. The book starts with an introduction to Oracle Tuxedo and guides you in installing its latest version and Python bindings for Tuxedo on Linux. You'll then learn how to build your first server and client, configure Tuxedo, and start running an application. As you advance, you'll understand load balancing and work with the BBL server, which is at the heart of a Tuxedo application. This Tuxedo book will also cover Boolean expressions and different ways to export Tuxedo buffers for storage and transmission, before showing you how to implement servers and clients and use the management information base to change the configuration dynamically. Once you've learned how to configure Tuxedo for transactions and control them in application code, you'll discover how to use the store-and-forward functionality to reach destinations and use an Oracle database from a Tuxedo application. By the end of this Oracle Tuxedo book, you'll be able to perform common Tuxedo programming tasks with Python and integrate Tuxedo applications with other parts of modern infrastructure.
Table of Contents (18 chapters)
1
Section 1: The Basics
6
Section 2: The Good Bits
12
Section 3: Integrations

Chapter 7: Distributed Transactions

Tuxedo stands for Transactions for Unix, Extended for Distributed Operations and it is described as a transaction processing system or a transaction monitor. It should be no surprise that transactions are an important part of Tuxedo. Most Tuxedo applications use transactions, and understanding how they work is essential for developing Tuxedo applications.

In this chapter, we will cover the following topics:

  • Configuring Tuxedo for transactions
  • Managing transactions
  • Understanding timeouts

By the end of this chapter, you will know how to enable transaction support in Tuxedo. You will create a transaction and configure transaction manager servers. You will learn different ways of creating transactions by configuration and by writing code. You will learn how to detect whether your code executes within a transaction and how to escape the transaction if needed. Finally, you will learn how to use transaction timeouts, blocking timeouts...