Should I be running my application with few instances (i.e. machines) with large memory size or a lot of instances with small memory size? Which strategy is optimal? This question might be confronted often. After building applications for 2 decades, after... Continue Reading →
JVM has provided helpful arguments to deal with OutOfMemoryError. In this article we would like to highlight those JVM arguments. It might come handy for you when you are troubleshooting OutOfMemoryError. Those JVM arguments are: 1. -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath 2. -XX:OnOutOfMemoryError... Continue Reading →
Troubleshooting OutOfMemoryError or any memory related problem is done in manually even in 2019. Troubleshooting and identifying the root cause of OutOfMemoryError can even be automated, by following below mentioned 3 steps: 1. Capture heap dump 2. Restart application 3.... Continue Reading →
There are few distinct differences and subtle nuances between 32-bit JVM and 64-bit JVM. We thought, we will try to clarify them through this question &answer article. Do I need to understand the difference between 32-bit JVM and 64-bit JVM?... Continue Reading →
Even unpredictable weather is being forecasted. But after all these technological advancements, are we able to forecast our application performance & availability? Are we able forecast even for the next 20 minutes? Will you be able to say that in... Continue Reading →
Java.lang.VirtualMachineError is thrown when Java virtual machine encounters any internal error or resource limitation which prevents it from functioning. It's a self-defensive mechanism employed by JVM to prevent entire application from crashing. In this article lets discuss different types of... Continue Reading →
Diagnosing and troubleshooting CPU problems in production that too in cloud environment can become tricky and tedious. Your application might have millions of lines of code, trying to identify the exact line of code that is causing the CPU to... Continue Reading →
FastThread provides powerful REST API to analyze Java thread dumps. This API can be used for application monitoring, analyzing code quality during CI/CD pipeline, proactive production monitoring & troubleshooting and several other purposes. This document walks through the steps involved in invoking... Continue Reading →
Few problems might happen only on test or production servers. It may not be reproducible in your local machine. In those circumstances you want to connect your IDE to the remote test (or production) servers and do remote debugging. Java... Continue Reading →
