Wednesday Sep 28, 2011

Coherence*Web with WebLogic Server Simple Example and Troubleshooting Overview

This quick troubleshooting guide covers a basic setup of a simple sample application using Coherence*Web instead of traditional WebLogic Server session replication[Read More]

Saturday Jul 23, 2011

wlstonweb - An Innovative Tool for WebLogic Scripting

Antonio De Juan from Oracle Support introduced me to a very innovative web application he built and put on www.samplecode.oracle.com called wlstonweb.  This cool web application has 2 primary features.

1) Interactive WLST Sessions via a web browser

2) WLST Script Management via a web browser

Check out the demo below. 

[Read More]

Wednesday Jul 13, 2011

Create WebLogic Diagnostic Image With Metric Thresholds

My colleague Jeff West pointed me to Stack Overflow today where someone had a question about how to take a thread dump when a certain condition was present.  In their case, they are trying to troubleshoot a low thread count.  Their monitoring tools were missing the critical time window and by the time the thread dump was taken, the threads had recovered.  I thought this would be a great opportunity to see if a Diagnostic Image would contain a thread dump (yes it does), and whether I could automatically set WebLogic to create the Diagnostic Image easily when this condition was presetn (yes it is).
[Read More]

Saturday Jul 09, 2011

WebLogic Server Work Manager Demo Recording and Slides

I have previously blogged about WebLogic Server Work Managers and this simple demo before. Now there is a corresponding set of slides and a recording on the youtube.com/OracleWebLogic channel to accompany it. The slides also contain some additional detail not covered in the original example around stuck threads.[Read More]

Saturday Jun 25, 2011

WebLogic Server JMS WLST Script – Who is Connected To My Server

Ever want to know who was connected to your WebLogic Server instance for troubleshooting? An email exchange about this topic and JMS came up this week, and I’ve heard it come up once or twice before too. Sometimes it’s interesting or helpful to know the list of JMS clients (IP Addresses, JMS Destinations, message counts) that are connected to a particular JMS server. This can be helpful for troubleshooting.[Read More]

Friday Jun 17, 2011

WebLogic Server–Use the Execution Context ID in Applications–Lessons From Hansel and Gretel

I learned a neat trick this week. Don’t let your breadcrumbs go to waste like Hansel and Gretel did! Keep track of the code path, logs and errors for each request as they flow through the system.[Read More]

Monday Jun 06, 2011

Sharing a Class With a WebLogic Classloader Without Modifying Scripts

A question (mostly original with some slight editing on my part) came up on our internal mailing list today that I thought might be interesting to those that have cloassloader questions. For a quick refresher on the options for classloading in WebLogic, click the image to see a larger image or get the presentation from the bottom of the post on slideshare. The key for this scenario is the DOMAIN_HOME/lib directory.[Read More]
About

James Bayer Image
I was formerly a Product Manager on the WebLogic Server team based out of Oracle HQ. You can find my new blog at http://iamjambay.com.
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