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Oracle GlassFish Server 3.1 Administration Guide
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Document Information


1.  Overview of GlassFish Server Administration

Default Settings and Locations

Configuration Tasks

Administration Tools

Instructions for Administering GlassFish Server

Part I Runtime Administration

2.  General Administration

3.  Administering Domains

4.  Administering the Virtual Machine for the Java Platform

5.  Administering Thread Pools

6.  Administering Web Applications

7.  Administering the Logging Service

8.  Administering the Monitoring Service

9.  Writing and Running JavaScript Clients to Monitor GlassFish Server

Running a Script for Monitoring GlassFish Server

To Run a Script for Monitoring GlassFish Server

Writing Scripts in the JavaScript Language for Monitoring GlassFish Server

Obtaining Information About Events That Provide Monitoring Data

To Obtain a List of Events That Provide Monitoring Data

To Obtain Detailed Information About an Event That Provides Monitoring Data

To Register a Script as a Listener for an Event

To Display Information From a Script

Writing an Event Callback Function

To Generate Counter Statistics

To Generate a Timer Statistic

Sample JavaScript Programs for Monitoring GlassFish Server

JavaScript Monitoring Client API Reference

Object client

Method Summary

Method Detail

Object scriptContainer

Method Summary

Method Detail

10.  Administering Life Cycle Modules

11.  Extending and Updating GlassFish Server

Part II Resources and Services Administration

12.  Administering Database Connectivity

13.  Administering EIS Connectivity

14.  Administering Internet Connectivity

15.  Administering the Object Request Broker (ORB)

16.  Administering the JavaMail Service

17.  Administering the Java Message Service (JMS)

18.  Administering the Java Naming and Directory Interface (JNDI) Service

19.  Administering Transactions

Part III Appendixes

A.  Subcommands for the asadmin Utility


Chapter 9

Writing and Running JavaScript Clients to Monitor GlassFish Server

Monitoring is the process of reviewing the statistics of a system to improve performance or solve problems. By monitoring the state of components and services that are deployed in Oracle GlassFish Server, system administrators can identify performance bottlenecks, predict failures, perform root cause analysis, and ensure that everything is functioning as expected. Monitoring data can also be useful in performance tuning and capacity planning.

This chapter explains how to write and run clients in the JavaScript programming language to provide monitoring data about GlassFish Server. The ability to program in the JavaScript language is assumed.

Using JavaScript Clients to monitor GlassFish Server has little impact on the runtime performance of a running server. Therefore, you can monitor GlassFish Server in this way both during development and in production.

The following topics are addressed here: