Efficient Jenkins CI/CD software relies on proper JVM tuning to avoid performance issues like increased latency, reduced throughput, higher stability risks, and increased costs. Key tuning practices include understanding JVM memory models, configuring heap sizes correctly, monitoring garbage collection metrics, and regularly analyzing performance diagnostics for ongoing improvements and adaptations.
The Node.js Production Troubleshooting Series addresses challenging production issues, particularly ReDoS, which causes applications to appear frozen due to regex backtracking. This article explains the causes of ReDoS, demonstrates how to simulate it, and provides a step-by-step diagnostic process using the yCrash tool to identify and resolve performance degradation linked to regex patterns.
The Node.js Production Troubleshooting Series addresses complex production issues, focusing initially on memory leaks. These occur when applications retain unnecessary object references, leading to increased memory usage. The series provides insight into causes, simulations, diagnostic tools like yCrash, and step-by-step methods for identifying and resolving memory leaks in applications.
The yCrash MCP Server streamlines the troubleshooting process in organizations by integrating with AI clients like Cursor to analyze diagnostic data such as thread dumps and GC logs. It provides a hassle-free connection for teams, enabling swift access to analysis results without switching tools, improving efficiency in identifying production issues.
Jenkins is increasingly used by organizations to optimize project workflows. However, disk space issues can severely disrupt performance. This article explores symptoms of such problems, their causes, diagnostic approaches, and practical solutions. It emphasizes the importance of regular monitoring to maintain efficiency and avoid system downtime in Jenkins environments.
When Jenkins becomes unresponsive, it can significantly impact development timelines. This article discusses common symptoms, causes, and solutions for both Jenkins controllers and agents. Issues may arise from resource exhaustion, locking problems, or slow external services. Regular monitoring and diagnostic tools like yCrash can expedite troubleshooting and prevent future outages.
Is OQL a necessary skill for Java professionals? Don’t heap dump analyzers give us everything we need to solve memory problems? Recently, yCrash hosted a webinar: OQL for JVM Troubleshooting: Querying Heap Dumps Like a Database, where I was a…
Java Flight Recorder (JFR) enables continuous profiling of applications by capturing runtime execution data within the JVM. This blog explores Network Lag, a performance issue caused by delays in network responses, impacting application performance. It discusses simulation, capturing JFR data, and analyzing it using yCrash JFRPlayer to identify and resolve the underlying delays effectively.
Java Flight Recorder (JFR) allows for low-overhead profiling to identify performance issues like DB connection leaks. This occurs when applications fail to close database connections, exhausting limits and causing errors. The blog outlines how to simulate and analyze connection leaks using JFR data, providing methods for resolution, including proper resource management practices.
The blog discusses the Java Flight Recorder (JFR) and its role in profiling performance issues, specifically Heavy I/O, caused by excessive file read/write operations from multiple threads that exhaust disk capacity. It details the simulation of this issue, captures JFR data for analysis, and suggests solutions to mitigate Heavy I/O problems.