Contents

Contents

Preface

7

1 Overview of Enterprise Server Troubleshooting

13

Identifying the Problem

13

First Steps

13

Gathering Information

15

Examining Log Files

16

Monitoring the System

17

Troubleshooting Tools

17

Operating System Utilities

17

Stack Traces and Thread Dumps

18

VisualVM

18

Where to Go for More Information

19

2 Specific Issues

21

Cannot Access Local Server (http://localhost:8080)

21

Did the Server Start?

22

Was the Server Started at the Expected Port?

22

Cannot Access Remote Server

23

Is the Server Available Locally?

23

Is the Proxy Setting Causing a Problem?

23

Cannot Access the Administration Console

24

Is the Application Server Running?

24

Is the Administration Console Running on the Expected Port?

25

Is the Security Manager Disabled?

25

Cannot Access a Server Application

25

Is the Application Server Running?

25

3

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Sun Microsystems 820682310 manual Contents, Overview of Enterprise Server Troubleshooting