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Universal Java Thread Dump Analyzer

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OutOfMemoryError

OUTOFMEMORYERROR AND FINALIZER THREAD

What will happen behind the scene when you write a finalizer method? How the finalizer thread leads to OutOfMemoryError? How to find the root cause of finalizer thread stuck and how to troubleshoot it using http://fastthread.io/ Watch this video to know... Continue Reading →

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TROUBLESHOOT OUTOFMEMORYERROR: UNABLE TO CREATE NEW NATIVE THREAD

There are 8 flavors of java.lang.OutOfMemoryError. In these 8 flavors java.lang.OutOfMemoryError: unable to create new native thread is one of the commonly occurring flavor. This type of OutOfMemoryError is generated when an application isn’t able to create new threads. This error can... Continue Reading →

HOW TO TROUBLESHOOT SUDDEN CPU SPIKES?

Your Java application has been running fine, but all of a sudden CPU consumption starts to go higher and higher until it stays at 80 - 100%. Even if you remove the server from load balancer (so that traffic isn’t sent... Continue Reading →

MEMORY LEAK IN JAVA EXECUTOR!

I was surprised to witness the Java Executor behavior – which caused “java.lang.OutOfMemoryError: unable to create new native thread” in our application. I would like to share my surprise (i.e. problem) and resolution to it.

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