Description: YARN monitoring involves tracking the performance and health of the YARN cluster and its components. YARN, which stands for Yet Another Resource Negotiator, is a fundamental part of the Hadoop ecosystem designed to manage cluster resources and facilitate the execution of distributed applications. YARN monitoring allows system administrators and developers to observe resource usage, such as CPU, memory, and storage, as well as the status of running applications. Through monitoring tools, bottlenecks, node failures, and other issues that could affect cluster performance can be identified. Additionally, monitoring provides real-time metrics that are essential for making informed decisions about resource allocation and performance optimization. Graphical interfaces and monitoring APIs allow for clear visualization of cluster activity, facilitating proactive management and troubleshooting. In summary, YARN monitoring is crucial for ensuring the efficiency and stability of applications that rely on distributed computing infrastructure.
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