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Chapter 2 The Tuxedo MIB application programming interface We have discussed how to use the GUI and command-line interfaces for monitoring the Tuxedo applications, but you can also write a program using a Management Information Base (MIB) interface for monitoring purposes that can modify the TUXCONFIG file for you if you need to make changes to any configuration. The MIBs provide the framework for programmed administration of the Tuxedo system. For more information, please refer to Oracle online documentation. Tuxedo System and Application Monitoring (TSAM) TSAM is an Oracle Tuxedo add-on product that provides comprehensive monitoring and reporting for the Tuxedo application. It monitors runtime performance bottlenecks and business-data fluctuations, determines service models, and provides notification when predefined thresholds are violated. In this section, we will discuss and provide an overview on its architectural components and the relation between them, the installation procedure, and a quick start guideline to monitor your Tuxedo application using TSAM. TSAM comprises of the following two components: Tuxedo Node..1 Tuxedo Process TSAM Manager Web Container Plug In Tuxedo Node..N TSAM Framework . . . . . . . . . LMS TSAM DATA Server TSAM Console Web Browsers Tuxedo Process Plug In TSAM Framework LMS Database [ 45 ] www.it-ebooks.info
Configuration and Administration of Tuxedo TSAM Manager runs on a Java application server; for example, the Oracle WebLogic server and Apache Tomcat. It provides a graphical user interface to correlate and aggregate performance metrics collected from one or more Tuxedo domains and then displays it in real time. TSAM Manager also has two major components: • Oracle TSAM Data Server is the communication interface to TSAM. It accepts requests from a Local Monitor Server (LMS) and metrics-query requests from the web browser. It also does the following tasks: ° ° Accepting data from the LMS and storing them into the database ° ° Accepting requests from the representation layer and data processing ° ° Communicating with the LMS for configuration instructions • Oracle TSAM Console is the web application that provides a GUI for administration and data presentation. After logging on to the TSAM Console, you have access to all the TSAM functionalities. The TSAM Agent collects various performance metrics for applications, including XA and non-XA transactions, services, and system servers. The TSAM Agent handles all the Tuxedo-side backend logic. It works in conjunction with the TSAM Manager. The TSAM Agent must be installed on top of Tuxedo. It has three components, as follows: • Local Monitor Server (LMS): The LMS is a Tuxedo system server (that needs to be configured in UBBCONFIG) that gets the data from TSAM's default plugin and passes the data to the TSAM Manager through an HTTP protocol. The LMS is required on each Tuxedo machine if the node needs to be monitored. • TSAM Framework: This is a data-collection engine working between the Tuxedo infrastructure and other TSAM components. It collects the runtime metrics, alerts evaluation, and monitors policy enforcement. • TSAM Plug In: The TSAM Agent provides default plugins for sending data to the LMS and then to the TSAM Manager. The plugin allows custom plugins to be hooked to intercept the metrics. The default plugin communicates with the LMS with shared memory. Applications will not be blocked at the metrics-collection point. Installing TSAM TSAM can be installed basically in two modes: GUI mode in Unix or Windows, and console mode for Unix machines. We will be using the console-mode installation in this book. GUI-mode installation is very self-explanatory, and it goes through the same steps as console installation, so please refer to the following instructions for GUI installation too. [ 46 ] www.it-ebooks.info
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Getting Started with Oracle Tuxedo
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About the Author Biru Chattopadhaya
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