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Event Tracer (ET)
User's Guide
Version 1.3.3

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Chapters

• Introduction
  • Top of chapter
  • Scope and Purpose
  • Prerequisites
  • About This Manual
  • Where to Find More Information
• Usage
  • Top of chapter
  • Overview
  • Filters and dictionary
  • Trace clients
  • Global tracing and phone home
  • Viewer window
  • Configuration
  • Contents viewer window
• Examples
  • Top of chapter
  • A simulated Mnesia transaction
  • Some convenient functions used in the Mnesia transaction example
  • Erlang trace of a Mnesia transaction
  • Erlang trace of Megaco startup

1 Introduction

The Event Tracer (ET) uses the built-in trace mechanism in Erlang and provides tools for collection and graphical viewing of trace data.

The viewed trace data is normally collected from Erlang trace ports or files.

1.1  Scope and Purpose

This manual describes the Event Tracer (ET) application, as a component of the Erlang/Open Telecom Platform development environment. It is assumed that the reader is familiar with the Erlang Development Environment, which is described in a separate User's Guide.

1.2  Prerequisites

The following prerequisites is required for understanding the material in the Event Tracer (ET) User's Guide:

• familiarity with the Erlang system and Erlang programming in general and the especially the art of Erlang tracing.

The application requires Erlang/OTP release R7B or later.

1.3  About This Manual

In addition to this introductory chapter, the Megaco User's Guide contains the following chapters:

• Chapter 2: "Usage" describes the architecture and typical usage of the application.

• Chapter 3: "Examples" gives some usage examples

1.4  Where to Find More Information

Refer to the following documentation for more information about Event Tracer (ET) and about the Erlang/OTP development system:

• the Reference Manual of the Event Tracer (ET).

• documentation of basic tracing in erlang:trace/4 and erlang:trace_pattern/3 and then the utilities derived from these: dbg, observer and et.

• Concurrent Programming in Erlang, 2nd Edition (1996), Prentice-Hall, ISBN 0-13-508301-X.