Description: The User Interface of the YARN Resource Manager is a fundamental tool within the Hadoop ecosystem that allows users to visualize the status of applications and resources managed by YARN. This interface provides a graphical and accessible representation of cluster activity, displaying critical information such as memory usage, the number of active nodes, the status of running applications, and available resources. Through this interface, administrators and users can monitor cluster performance, identify bottlenecks, and optimize resource allocation. Additionally, the interface allows for application management, facilitating the execution, termination, and tracking of jobs in real-time. Its intuitive design and ability to provide real-time data make it an essential tool for the efficient management of distributed computing environments, enhancing visibility and control over large-scale data processing operations.