The Scenario

 What options do you have when users are complaining about the performance of applications running on WebLogic?

 One very useful option is the capability of generating, gathering, and analyzing diagnostics data about WebLogic servers to find out and fix performance problems.

The WebLogic Diagnostic Framework – WLDF

 The WebLogic Diagnostic Framework (WLDF) is a set of components orchestrated together to collect, archive, and access diagnostic information about a WebLogic Server instance and its applications.

 Using WLDF services, diagnostic data generated by a running server and the applications deployed within its containers can be:

• Created
• Collected
• Analyzed
• Archived
• Accessed

 By analyzing this diagnostic data, you can look into the run-time performance of WebLogic servers and its applications, isolate and solve performance problems.

Architecture

The WLDF Console Extension

 The WLDF Console Extension provides a set of visual tools you can use to directly manipulate objects to display diagnostic data about WebLogic Server instances.

WLDF Console Extension Example

 After starting up WebLogic and still in an idle state:

 The number of execute threads remains constant at 3.

There are zero queued requests.

As the load starts to ramp up, more execute threads are spawned and at some points it time requests have to wait to be executed.

Conclusion

 WLDF and the console extension can be extremely helpful while troubleshooting WebLogic server performance problems.

 You can learn mote about WLDF by attending the WebLogic Monitoring and Performance Tuning course.

 The greatest place to take such training is DesTech in Toronto, Ontario.

 Here is a link to the Oracle WebLogic Monitoring and Performance Turning course by Oracle University and delivered by Destech.

Feedback

 Let us know how you have been using WLDF, what you like about it and what challenges you have faced for utilizing WLDF. 

 You can send your feedback online at www.2dev.com or by sending us an email at feedback@2dev.com.

Download

Oracle_WebLogic_Monitoring_WLDF.pdf

David Parry is the Manager of Remote Database Monitoring Services at DesTech. David has worked as a Database Architect and Administrator in the IT sector for the past 15 years. He is an Oracle Certified Professional and has worked in many different capacities including Senior Consultant and Presales Engineer providing solutions and guidance in building, maintaining and designing Oracle solutions for large and midsize environments.

David is also a Certified Oracle University Instructor and has been teaching for Oracle University for the last 10 years. David has been one of the best at Oracle University and has many citations for Excellence in Customer Satisfaction to his name.

His understanding of business and his extensive classroom experience has facilitated him to transfer his teaching skills to be an ideal Mentor and Coach of Databases teams helping them achieve their optimal potential.

David’s technical focus has been on Real Application Cluster (RAC), Data Guard, Grid Control, Performance Tuning, Backup and Recovery and Automatic Storage (ASM). His business focus has been on management, mentoring with an eye on training. He has also developed several course materials to enhance the return on investment of clients.

Ask Tom is a great place to find answers to many of your Oracle technical questions.

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