Heap dumps are crucial for diagnosing memory-related incidents in modern JVM environments, yet manual analysis is often ineffective due to complexity and time constraints. Automated heap dump analysis, leveraging AI and intelligent tools, enhances speed and accuracy, allowing teams to quickly identify root causes, reduce mean time to resolution (MTTR), and improve incident response.
Java performance issues often stem from memory problems, affecting system responsiveness and increasing cloud costs. Analyzing heap dumps provides insights into these issues. This article discusses the JVM memory model, heap dump analysis, and tools like HeapHero to identify memory leaks and wastage, ultimately aiding in effective troubleshooting.
The Java Virtual Machine enables Java applications to be platform-independent while optimizing performance. One crucial component to understand, when considering performance, especially memory utilization, is how the Java Collections Framework, specifically the ArrayList, handles size and capacity. In this article, we will concentrate on the overhead caused by lists that contain two or three elements.... Continue Reading →
Recently we confronted an interesting 'java.lang.OutOfMemoryError: Metaspace' problem in a Microservice application. This Microservice application will run smoothly for initial few hours, later it will start to throw java.lang.OutOfMemoryError: Metaspace. In this post let me share the steps we pursued to troubleshoot this problem. Video: To see the visual walk-through of this post, click below:... Continue Reading →
Heap dump files are large in size (several GB). To troubleshoot the heap dump, you have to transmit the heap dump file from your production server to your local machine
HeapHero provides powerful REST API to analyze Java/android heap dumps. This API can be used in CI/CD pipeline to proactively analyze how much memory is wasted due to inefficient programming practices such duplication of strings, over allocation and under utilization of data structures, sub-optimal data type definitions,…. It can be used in production environment too... Continue Reading →
The Heap Hero REST API streamlines Android JVM heap dump analysis without manual effort. Major enterprises utilize it in CI/CD pipelines, production root cause analysis, and for analyzing multiple application dumps efficiently. It supports various compression formats, facilitates remote downloads, and provides JSON/XML responses for detailed troubleshooting insights.
HeapHero is a world-class heap dump analysis tool. On top of doing traditional heap dump analysis, it's the first tool in the industry to report the wasted memory. Table of Contents Introduction Heap Statistics Whats in your Memory Large Objects Thread Report Object Headers Duplicate Strings Duplicate Objects Duplicate Primitive Arrays Inefficient Collections Inefficient Object... Continue Reading →
