Hunting a Random Bug – A True Story
A few weeks ago, I finished a bug hunt for the RapidFTR open source project, which took me three evenings. I thought it might be worth sharing the story of the hunt. This article will describe what I...
View ArticleJavaOne 2012: Diagnosing Your Application on the JVM
It was worth attending Staffan Larsen‘s (Oracle Java Serviceability Architect) presentation ‘Diagnosing Your Application on the JVM‘ (Hilton Plaza A/B) just for learning of the new jcmd command-line...
View ArticleJava Thread: retained memory analysis
This article will provide you with a tutorial allowing you to determine how much and where Java heap space is retained from your active application Java threads. A true case study from an Oracle...
View ArticleOpenJPA: Memory Leak Case Study
This article will provide the complete root cause analysis details and resolution of a Java heap memory leak (Apache OpenJPA leak) affecting an Oracle Weblogic server 10.0 production environment. This...
View ArticleLogging or debugging
Debugging is lame. You should debug log. If your code is structured you do not need debug logging. These are two opinions from the two ends of the line. I am, as usually, standing in the middle, and I...
View Article5 Error Tracking Tools Java Developers Should Know
Raygun, Stack Hunter, Sentry, Takipi and Airbrake: Modern developer tools to help you crush bugs before bugs crush your app! With the Java ecosystem going forward, web applications serving growing...
View ArticleJVM is down with “OutOfMemory” error – what should I do?
Amazing as it may seem, but this particular cry “From the Depths” is frequently displayed among the results of search requests regarding JVM settings. You have probably been faced with the “I remember...
View ArticleWhat is wrong with troubleshooting tools?
“Troubleshooting is a form of problem solving applied to repair failed software. It is a logical, systematic search for the source of a problem so that it can be solved, and so the software can be made...
View ArticleFree Webinar: New Troubleshooting Techniques in AppD
Join us on October 9th for a live session about new troubleshooting techniques in AppD using OverOps Application performance has direct business implications, that’s why monitoring performance is...
View ArticleAnswer a quick survey for the chance to win $300!
There has long been a divide between development and operations. But recently, there has been a movement to break down these metaphorical walls and build bridges of shared accountability between the...
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