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

Payam Moghtader is a Senior Consultant and currently working in capacities of Oracle Solutions Architect, IT Project Manager (PMP), and Certified Oracle University Instructor.  He also is a contributor to 2Dev.com. Payam has over 17 years of experience in management and implementation of Information Technology solutions. His areas of expertise are Oracle based solutions including Oracle Fusion Middleware, Oracle WebLogic Server, Oracle Application Server, Oracle ADF, Java EE, Oracle Database, SQL Tuning, Server Architecture and Design as well as Project Management.

He managed his own start-up company in the mid 90’s and was responsible for directing the technology needs and modernizing processes in the manufacturing industry. He also worked as a freelance consultant, technical trainer and project manager for a number of small and midsize organizations in the late 90’s.

Payam has been with his current role since 2000 as a senior consultant at DesTech, a highly regarded Professional Services firm in Toronto, Ontario, Canada.

In the past 12 years, through DesTech and other corporate training companies and colleges, Payam has taught many courses for Oracle University across North America with many awards to his name.