Excess memory usage can slow down applications or cause crashes due to memory leaks, often traceable through heap dump analysis. Common causes include slow finalizer methods, uncleared ThreadLocal variables, and mutated keys in collections. Using tools like HeapHero can help identify and resolve these issues efficiently.
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 looks into the rare 'java.lang.OutOfMemoryError: reason stack_trace_with_native_method' error, its causes, and solutions. It discusses JVM memory areas, heavy use of native methods, and recursive native method calls as common causes. Solutions include analyzing stack traces and using OS tools like DTrace, pmap, and pstack for diagnosis.
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 content covers one of the 9 types of java.lang.OutOfMemoryError: 'Unable to create new native threads'. It explains the causes, possible solutions, and ways to troubleshoot this error. The post includes a sample program to simulate the error and offers advice on capturing and analyzing thread dumps.
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.
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 →
In this article, we’ll learn how to improve the performance of the applications that tend to use most of the space due to extensive usage of Strings. There’s no need to store more than one instance of immutable objects in our heap, and String is a good example. Object Allocation Let’s briefly refresh the information... Continue Reading →
Many of us know that allocating more memory than we need may negatively affect the performance of our application. Thus, creating the Lists using a constructor that takes a capacity may make a significant difference. However, this optimization step might not be so straightforward while using Maps. In this article, we’ll learn how to identify... Continue Reading →
