Archive for the ‘JVM’ category
Thursday, 29th November 2012 – FREE Webinar – Preventing and diagnosing ColdFusion server crashes and slow downs
Are your ColdFusion applications running slow or even crashing the server? Are you concerned about what increasing load will do the the reliability of your application? Do you want to protect your organizations reputation for quality on the web? Then join us for this free webinar with Intergral’s David Stockton and learn how to keep your ColdFusion servers alive and [...]
This JVM bug seems to be getting some high-level attention in the IT press so I thought I’d lay out the issue where CF is concerned: History The bug is in the JVM (it has been since ~2001) and so ColdFusion running on Sun JVMs are affected. Someone out there has obviously made the link [...]
Killing Rogue Requests – Going native, don’t stop me now!
FusionReactor is a great monitoring tool and one of my favorite features is the ability to kill rogue requests. FusionReactor is sometimes limited by Java itself. Java has a known limitation that threads running “Native Code” can’t be killed (until the thread returns from the native code block). What is Native Code? Underlying all your [...]
JVM PermGen memory usage with many CFM templates
Have you noticed requests stop processing and your CPU usage is high? There are many possible causes of this – a common one being using “Registry” as the CLIENT variable backing store. Have you seen this combined with “java.lang.OutOfMemoryError: PermGen space” errors in your logs? Again, there are several causes for filling the PermGen space [...]
