yCrash addresses the limitations of traditional Application Performance Monitoring tools by providing insights into the root causes of problems. It captures and analyzes various technology stack artifacts like logs and dumps. NaveenKumar Namachivayam offers a video series to guide users in learning to utilize yCrash effectively.
This post discusses the advantages of setting the initial heap size equal to the maximum heap size for Java applications. Benefits include improved availability, performance, and application startup time while maintaining cost-effectiveness in cloud environments. It highlights real-world tests showing better response times and reduced garbage collection pause times with this configuration.
The post discusses a memory leak problem encountered in a Java application running on AWS. After initial unresponsiveness, the yCrash tool identified the leak stemmed from an anonymous inner class. The issue was resolved by moving the 'pm.stopReporting()' method into a 'finally' clause, ensuring proper cleanup and garbage collection.
The 'java.util.UUID#randomUUID()' API in Java uses operating system entropy to generate unique identifiers. A lack of entropy can lead to blocked threads, causing application unresponsiveness. To mitigate this, one can upgrade to RHEL 7, install Haveged for better randomness, or configure Java to use '/dev/urandom' for number generation.
This article discusses optimizing garbage collection (GC) performance in applications, highlighting its importance for reducing pause times, improving response times, and lowering cloud costs. Key performance indicators like GC pause time, throughput, and CPU usage are analyzed. A case study illustrates how reducing the young generation size significantly improved GC metrics and overall performance.
ConFoo Montreal is a multi-technology conference where global speakers share knowledge. Architect Ram Lakshmanan presented on "LET'S CRASH OUR APPLICATIONS!" covering issues like memory leaks, CPU spikes, and deadlocks. Understanding these triggers aims to simplify diagnosis and resolution of application performance problems.
ConFoo Montreal is a conference for developers featuring Architect Ram Lakshmanan, who will present on "16 artifacts to capture when there is a production problem." His session ranks 5th among 155. The presentation highlights essential artifacts and tools for effectively troubleshooting production issues.
GC log analysis offers benefits such as reduced GC pause time, cost savings in cloud computing, outage prediction, and valuable metrics for capacity planning. Key steps include enabling GC logs, measuring during peak traffic periods, and utilizing tools like GCeasy and IBM GC visualizer for effective analysis.
The yCrash Team reunited after nearly two years apart due to the pandemic, meeting in Chennai for a memorable trip. Despite concerns over heavy rains disrupting travel, they successfully gathered at a resort, bonding closely over three fun-filled days. The experience deepened their sense of family and sparked discussions for future trips.
JAX – Online conference is an event for Java and software architecture enthusiasts. This year, it featured a presentation titled “Let's crash the applications!” by an architect, focusing on issues like memory leaks, thread leaks, and CPU spikes. Understanding these problems aids in diagnosis and solutions.