The article differentiates between Java profilers and memory analyzers, outlining their purposes and typical use cases. Memory analyzers focus on heap data to identify memory leaks or optimize usage, while profilers assess overall performance. Various tools like HeapHero and yCrash help troubleshoot Java applications effectively, enhancing resource efficiency and performance.
The post discusses memory leaks caused by improperly handled keys in Java Collections, particularly HashMap. It illustrates how mutating keys leads to OutOfMemoryError and outlines steps for diagnosing such issues, including capturing and analyzing heap dumps. The solution involves preventing key mutation and employing diagnostic tools effectively.
Every year in October, JAX London is the go-to event for Java and Software Architecture enthusiasts! It is a four-day conference for cutting-edge software engineers and enterprise-level professionals. This year, at JAX London’s 2024 conference, our architect Ram Lakshmanan was invited to talk on the topic: “How to Troubleshoot 9 Types of OutOfMemoryError”. Even though at surface... Continue Reading →
HeapHero introduces an interactive heap object chart, allowing users to visualize memory objects in a graphical format for the first time. This feature simplifies data comprehension and offers interactive exploration, making it easier to analyze the largest objects in heap memory. Users can navigate the chart, view actual data, and examine object references with ease, enhancing the overall user experience.
This post discusses the Java OutOfMemoryError, with a focus on the rare 'Kill process (Java) or sacrifice child' error. It explains the causes, solutions, and ways to diagnose this issue. The post highlights the importance of knowing JVM memory areas and provides practical troubleshooting steps.
This post looks at the 'java.lang.OutOfMemoryError: Permgen space' issue, explaining its causes, solutions, and how to diagnose it. It discusses JVM memory regions, dynamic class creation, potential fixes, and troubleshooting with heap dumps. The goal is to help readers fully understand this common Java memory error.
The post aims to help readers understand important Java memory management topics, with a special focus on OutOfMemoryError: Metaspace. It covers the causes and solutions for these errors, explains JVM memory regions, provides a sample program, and outlines troubleshooting steps and heap dump analysis.
This post looks at the rare 'java.lang.OutOfMemoryError: Requested array size exceeds VM limit' error and its causes. It explains JVM memory areas, possible solutions, and ways to diagnose the issue. The post includes a sample program and troubleshooting tips to help you fix this error. Share your experiences in the comments to help everyone learn more.
In this post, we explored the 'java.lang.OutOfMemoryError: GC overhead limit exceeded', a common challenge for Java developers. We delved into its causes, including increased traffic volume and memory leaks, as well as potential solutions such as fixing memory leaks and increasing heap size. Troubleshooting tips, including capturing and analyzing heap dumps, were also discussed to equip developers in conquering this issue.
DevNexus is the longest-running and largest Java Ecosystem Conference in the world. Our architect was invited to give a talk on the topic “EFFECTIVELY TROUBLESHOOT 9 TYPES OF OUTOFMEMORY ERROR”. Embark on a journey into the depths of java.lang.OutOfMemoryError as we unravel its complex nature. In this talk, the nine distinct faces of this memory-related challenge... Continue Reading →
