This content discusses deadlock in multi-threaded applications, particularly in Scala. It explains deadlock as a situation where processes cannot proceed due to blocking, illustrated with a train example. The article also provides a sample Scala program creating deadlock and suggestions for troubleshooting using tools like yCrash to analyze thread dumps and logs.
This post explains how to simulate and troubleshoot the 'java.lang.OutOfMemoryError: Java Heap space' error in Scala. It provides a sample program that infinitely inserts records into a HashMap, leading to this error. Additionally, it outlines manual and automated approaches for diagnosing the issue and utilizing heap dumps for analysis.
This content discusses simulating thread leaks in Scala, specifically generating the 'java.lang.OutOfMemoryError: unable to create new native thread'. A provided sample program continuously creates threads, eventually saturating memory. It outlines both manual and automated diagnostic approaches, emphasizing the effectiveness of the yCrash tool for identifying problematic threads and their origins.
This post explains how to simulate a StackOverflowError in Scala through a recursive program. The example demonstrates infinite method calls leading to the error. It discusses diagnosis methods, including manual analysis of logs and using the yCrash tool for automated analysis, which identifies error sources effectively.
This content discusses simulating and troubleshooting the ‘java.lang.OutOfMemoryError: Java Heap space’ issue in Kotlin applications. It describes a sample program that causes this error by indefinitely inserting records into a HashMap. It also outlines manual and automated approaches for diagnosing the problem, emphasizing the importance of capturing heap dumps before the error occurs.
This post discusses simulating and diagnosing StackOverflow errors in Kotlin. A sample program demonstrates how recursive calls cause this runtime error, exceeding the thread's stack size. Manual and automated approaches, including the yCrash tool, are outlined for diagnosing the error, pinpointing infinite loops and providing insights for resolution.
This post explains how to simulate and troubleshoot thread leaks in Kotlin, focusing on generating a 'java.lang.OutOfMemoryError: unable to create new native thread.’ It describes a sample program that infinitely creates non-terminating threads and outlines both manual and automated approaches to diagnose and resolve the issue, emphasizing the use of tools like yCrash.
This article explores how threads enter a BLOCKED state in Kotlin due to lock contention. It includes a sample program demonstrating how ten threads can be blocked when accessing a synchronized method that forces them into prolonged sleep. Additionally, it discusses methods for diagnosing blocked threads, including both manual and automated approaches using tools like yCrash.
JVM memory consists of various regions, including Young Generation, Old Generation, and Metaspace. 'java.lang.OutOfMemoryError: Metaspace' occurs when the Metaspace is full due to excessive metadata from dynamically created classes. Solutions include increasing Metaspace size or troubleshooting memory leaks. A sample program demonstrates this memory issue.
The post discusses a 'java.lang.OutOfMemoryError: Metaspace' issue encountered in a Microservice application. It highlights the significance of the Metaspace memory region, outlines steps for diagnosing the error using garbage collection logs, and identifies a memory leak caused by an outdated third-party library. Upgrading the library resolved the issue.