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Oracle WebLogic Server 12c Advanced Administration Cookbook

You're reading from   Oracle WebLogic Server 12c Advanced Administration Cookbook If you want to extend your capabilities in administering Oracle WebLogic Server, this is the helping hand you've been looking for. With 70 recipes covering both basic and advanced topics, it will provide a new level of expertise.

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Product type Paperback
Published in Jun 2013
Publisher
ISBN-13 9781849686846
Length 284 pages
Edition Edition
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Author (1):
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Dalton Iwazaki Dalton Iwazaki
Author Profile Icon Dalton Iwazaki
Dalton Iwazaki
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Table of Contents (15) Chapters Close

Oracle WebLogic Server 12c Advanced Administration Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Install, Configure, and Run FREE CHAPTER 2. High Availability with WebLogic Clusters 3. Configuring JDBC Resources for High Availability 4. Configuring JMS Resources for Clustering and High Availability 5. Monitoring WebLogic Server 12c 6. Troubleshooting WebLogic Server 12c 7. Stability and Performance 8. Security Index

Taking thread dumps


The thread dump is a well-known feature of the Java Virtual Machine. It is a snapshot of the JVM that helps the WebLogic administrator analyze which Java method the Java threads were executing in at the exact moment the snapshot was taken. As in the rest of the book, the JVM used in this recipe is Oracle JRockit JVM.

In a hypothetic scenario, the WebLogic Administrator received several e-mails from the configured WLDF alerts from the previous chapter, indicating that the QueueLength value is growing up in the PROD_Server01 Managed Server. The requests are probably piling up.

In this recipe, thread dumps of PROD_Server01 will be taken to analyze the problematic scenario.

Getting ready

The thread dump can be taken from the Administration Console from the shell using the jrcmd command-line tool or from the JRockit Mission Control.

How to do it...

Get the thread dump from the Administration Console:

  1. Access the Administration Console by pointing your web browser to http://adminhost...

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