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Getting Started with Oracle Tuxedo
Getting Started with Oracle Tuxedo

Getting Started with Oracle Tuxedo: This is a crash course in developing distributed systems using Tuxedo and extending it to an SOA or cloud environment. Get to grips with administrative tools, Tuxedo APIs, the SALT component, and the Exalogic machine.

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Getting Started with Oracle Tuxedo

Chapter 2. Configuration and Administration of Tuxedo

In this chapter, we will discuss the essentials of Tuxedo configuration and administration and the tools used by a Tuxedo administrator to perform day-to-day operations.

In this chapter, we will cover the following topics:

  • Administration of a Tuxedo application

  • Structure of a Tuxedo application (configuration file)

  • Parameters in the configuration file

  • Environment variables

  • Commands and tools to build, monitor, and change the Tuxedo system configuration

  • Various important components and built-in features of Tuxedo

  • Tuning and monitoring guidelines

This chapter is basically dedicated to Tuxedo administrators and is divided into two main categories. The first one is configuring and setting up a Tuxedo application, and the other is monitoring/administrating a Tuxedo application. It is very important to understand how to structure a Tuxedo application using a configuration file called UBBCONFIG, as well as to understand each and every parameter in the...

Tuxedo administration


In this section, we will discuss the elements of the Tuxedo administration, such as the role of an administrator, how to configure and structure a Tuxedo application, various useful commands, how to manage or monitor a Tuxedo application, some important built-in features of Tuxedo, components such as queue and domain, and tuning guidelines.

Responsibility of a Tuxedo administrator

The Tuxedo administrator needs to play a central coordinating role by working closely with application designers, operating system administrators, network administrators, and database administrators to ensure end-to-end management of the Tuxedo application, which is distributed in nature. The primary responsibilities of a Tuxedo administrator are configuring, managing, and monitoring the Tuxedo application. The most important one for a Tuxedo administrator is how to plan, execute, and maximize the use of computing resources. He/she also needs to use various administrative tools in a centralized...

Configuring and structuring a Tuxedo application


The Tuxedo configuration file, also called the UBBCONFIG file, is the most important configuration file for a Tuxedo environment or application. The UBBCONFIG file is a text file that contains various sections to structure your application, and each section has parameters with respective values to configure and manage the Tuxedo application. It has eight sections, of which five sections are required for all configurations: RESOURCES, MACHINES, GROUPS, SERVERS, and SERVICES; the rest of the sections (NETGROUPS, NETWORK, and ROUTING) are optional. This is a text file, so it can be created or maintained using any text editor that works with a text file.

Let's see an example of the UBBCONFIG file to show the overall structure of a Tuxedo application.

The following UBBCONFIG file shows the two-machine (MP mode) configuration along with the most important parameters. I have added the NETWORK and ROUTING sections to give you a real-life example:

*RESOURCE...

Tuxedo commands


There are a huge number (around 100) of commands with various options to administrate a Tuxedo system. I have listed all the commands in this section and picked up the most important ones to discuss in brief.

The buildclient command

This is used to construct a Tuxedo ATMI client module; its syntax is as follows:

buildclient [-v] [{-r rmname | -w }][ -o name]  [ -f firstfiles] [ -l lastfiles]  

Let's discuss the attributes of this command:

  • -v: The buildclient command should work in verbose mode to ensure that all the messages can be seen during compilation.

  • -r: This option specifies the resource manager associated with this client to be part of a transaction.

  • -w: This option specifies that the client is to be built using the workstation libraries; native mode is default.

  • -o: This option specifies the filename of the output load module. If not supplied, the load module is named a.out.

  • -f: This option specifies one or more user files to be included first in the compilation and link...

Monitoring and changing a Tuxedo application


The administrator needs to be able to constantly monitor and tune parameters, add or remove a user, deploy or undeploy an application, and create or change queues, access control lists, and so on. The Tuxedo MIB contains all the information needed for the operation of an Oracle Tuxedo application. There are two different administrative tools that access the MIB and allow for dynamic configuration of a Tuxedo application. The third one is the Tuxedo Admin Console, which has not been updated since Tuxedo 8, and hence it is not included in our discussion.

The following is a list of the MIB's components:

  • WS_MIB: For workstation groups and the processes associated with them

  • ACL_MIB: For administrating access control lists

  • APPQ_MIB: For administrating queues

  • EVENT_MIB: For event notification and the subscription request database

  • DM_MIB: For administrating the Tuxedo domains' (multiple-domain) configurations

The command-line interface

This is a set of commands...

The important features of Tuxedo


In this section, we will discuss various important built-in features (security, data-dependent routing, encryption, and so on) that come with the Tuxedo system and how these features can be used to make your application more secure, effective, and responsive to address your business needs. These features are configurable, and there is no need to do any custom development, hence they are very cost-effective and easy to use.

Security

Security is one of biggest concerns for a Tuxedo administrator, and that is why Tuxedo provides mainly three levels of security features; in addition, Kerberos can be added for more.

  • First level: This is provided by the operating system. This security imposes restrictions on the clients and the administrator.

  • Second level: This is provided by Tuxedo. By default, any client program can join a Tuxedo application, but an application can be configured to ensure that all clients joining the application need to provide the password. There...

Administering the Tuxedo queue (/Q)


Tuxedo provides a reliable queue based on the XA-compliant resource manager (TMS – Transaction Manager Server), which provides the framework to store messages in a reliable storage and forward it to different components. These could be services, clients, or components within different Tuxedo processes. The purpose of a queue is to perform time-independent communication. Any client or server can store onto (enqueue) and retrieve (dequeue) a message from the queue. Tuxedo provides the TMQUEUE server, which provides this enqeuing and dequing service.

Tuxedo also provides a server called TMQFORWARD, which dequeues a message and forwards it to other services. Messages can be retrieved in any of several ordering schemes, including Last In, First Out (LIFO), First In, First Out (FIFO), priority order, and time-based order. More than one client or server can access the same queue. In Chapter 3, Development of Tuxedo – Various APIs, I have discussed the Tuxedo queue...

The Tuxedo domain


The Tuxedo domain can be used for large-federated or distributed-application architecture across cities, countries, or different parts of the world. The Tuxedo domain facilitates interoperate or extend the scope of various applications to include access to other Tuxedo and non-Tuxedo-based applications. The Tuxedo domain provides transparency between applications to ensure that any client can get services from another domain (remote service) by maintaining the security norms. The Tuxedo administrator can define/design different domains based on the geographical location of the data center or to enforce inter-organizational boundaries. The Tuxedo domains are autonomous, which means they are administered independently of each other. Domains are defined by the administrator; he/she defines how the services in one domain are made available to another. There are basically three components for the Tuxedo domain architecture: DoMain Administrative server (DMADM), GateWay Administrative...

Tuning the application


Planning the architecture of a Tuxedo system is a very important and critical task, as there are a number of components that have various parameters that can impact performance, scalability, reliability, and security. There are basically two major areas we need to look at: modularity (which makes applications more manageable), and agile and resource management (which means sharing common resources to reduce maintenance, that is, time and cost). As an administrator, you need to keep these two in mind, and you don't need to predefine the application configuration all at once. The initial/default values for parameters in UBBCONFIG usually provide acceptable/standard performance in most cases. If the performance, measured by response time, is not as high as required, the administrator should monitor the system to determine the bottleneck and change parameters as necessary. I am sharing some practical experiences with you, which are very common, but critical for a Tuxedo...

Summary


In this chapter, we discussed various components of a Tuxedo application from the administrative perspective. I explained the configuration file and its structure and the relevance of its parameters. I have listed all the Tuxedo commands and how to monitor a Tuxedo application using these commands and TSAM's web-based GUI interface. I have also explained the Tuxedo queue and the reliable-messaging mechanism and how to create and administer it. The Tuxedo domain is another important component that can be used for real-time distributed applications spread across geographical and organizational boundaries. We discussed various built-in features of Tuxedo (for example, load balancing and data-dependent routing) that make Tuxedo more robust, scalable, and easy to use. Each of these sections itself is a vast topic, and a book can be written on each of them. The intention of this book is to give you a quick overview of each of these important components of Tuxedo. In the end, we discussed...

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Key benefits

  • Master the Tuxedo architecture and its various important components and their functionalities
  • Get started with Tuxedo best practices and tuning guidelines
  • Understand the Exalogic machine and how to configure Tuxedo on it.

Description

The client server or Tuxedo has existed for the past few decades and it is expanding every day! Today, Service Oriented Architecture (SOA) or Service Component Architecture (SCA) are considered to be the new approaches to build client server architecture, Tuxedo adopts this concept and can be extended very easily. "Getting Started with Oracle Tuxedo" shows how to develop distributed systems using Tuxedo and extend that to SOA or even a Cloud environment. The primary objective of this book is to show how to develop distributed systems using Tuxedo and extend that to a SOA environment. It also gives fundamentals of Exalogic machines and how Tuxedo application can leverage these new high end machines for enterprise needs. This book introduces you to the client server technology and how it has evolved in past decades. The book also covers various Tuxedo installation procedures, hardware and software requirements, and then how to configure Tuxedo application, all parameters with their syntax and relevant values. You will be introduced to various Tuxedo administrative tools, which are very important for a Tuxedo Administrator to perform his daily work, and with tuning suggestions and best practices. Next comes, Tuxedo APIs to build your applications, combining client and server modules. The book then covers the SALT component, which allows external web service applications to invoke Tuxedo services, and similarly Tuxedo applications can invoke external web services. At the end we discuss briefly the Exalogic machine and its architecture and how to configure and deploy Tuxedo application in this environment.

Who is this book for?

If you are an architect, designer, developer or administrator looking for a quick reference guide on how to build a Tuxedo application, then this is the best guide for you.This book also helps business users to understand this technology, various features, and functionalities and relate business benefits.No prior knowledge of Tuxedo is required.

What you will learn

  • Learn the Tuxedo installation procedures, hardware and software requirements, and guidelines.
  • Learn to configure Tuxedo application, all parameters with their syntax and relevant values.
  • Understand how to use various Tuxedo administrative and monitoring tools, which are very important for a Tuxedo Administrator to perform his daily work.
  • Master the use of Tuxedo APIs to build your applications, combined client and server modules.
  • Get to grips with all Tuxedo buffer types, communication paradigms, and most importantly transactions (XA) processing.
  • Learn to use various important built-in features such as security, data-dependent routing, encryption, reliable messaging using queue, encoding, and much more to make your application more secured, effective, and responsive to address your business needs.
  • Use SALT to connect Tuxedo Service from or to a SOA environment
  • Understand the Exalogic machine and how to configure Tuxedo on it.
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Publication date : Jun 04, 2013
Length: 162 pages
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Language : English
ISBN-13 : 9781849686884
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Table of Contents

5 Chapters
Getting Started with Tuxedo Chevron down icon Chevron up icon
Configuration and Administration of Tuxedo Chevron down icon Chevron up icon
Development of Tuxedo – Various APIs Chevron down icon Chevron up icon
SALT – Service Architecture Leveraging Tuxedo Chevron down icon Chevron up icon
Oracle Tuxedo Joining the Exalogic Family Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
(2 Ratings)
5 star 50%
4 star 0%
3 star 0%
2 star 0%
1 star 50%
steven Jul 12, 2013
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Getting Started with Oracle Tuxedo is a well written, concise book that provided me with just the right information I needed. I didn't get lost in technical jargon and the author had a good sense of humor so I didn't get bored. This book is good for anyone who needs to get started with Tuxedo or already has experience with the technology and needs a reference source. What was also helpful was that Tuxedo specifics were able to be applied to other web-services technologies such as SOA. I highly recommend the book.
Amazon Verified review Amazon
Carlos May 08, 2016
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
No aporta absolutamente nada que no venga en el manual Tuxedo.Poco más de 100 páginas entre las que se encuentran pantallazos y esquemas de la misma Oracle.Se limita a hacer una breve descripción de los ficheros de configuración y poco más.Dinero tirado.
Amazon Verified review Amazon
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