Friday, June 29, 2012

OSI Model Overview

Great video that provides an overview of the OSI model for someone like me that has very little networking background. 

Saturday, June 23, 2012

IBM WebSphere Java Health Center

Cool link that talks about setting up and using the Java Health Center. I have used this a couple times trying to diagnose random JVM crashes. It did not help me resolve the issue because we could not recreate the random event that crashed the JVM but it was fun watching the JVM work !

Wednesday, June 20, 2012

Friday, June 15, 2012

Microsoft Network Monitoring

We had a thread lock on one of our messaging engines that keep the entire cluster from coming up. The thread lock was waiting for a response from the database. After a routing table update the issue was resolved so I never got a chance to dig deeper into the Microsoft network monitor but hope to get a chance again someday cause it looks really cool !

More on Windows Performance and Reliability 

Thursday, June 14, 2012

Website Monitoring with Powershell

Very cool post on creating a website monitoring script in power shell. I learned that the webClient.DownloadString object will throw an error when the site is down so I did not bother to use the string parsing part of the script.

Sunday, June 10, 2012

Other Causes of Maximo Session Timeout

Our Maximo users were experiencing a time out where they would be prompted to log back into Maximo but would return to their last location in the application and not the start center. This is different from the Maximo time out where the user is sent back to the start center. After much research and some help from IBM support we were able to resolve this issue by adjusting the LTPA time out setting in WebSphere.  Here is a tech note on the subject from IBM.