YARN (Yet Another Resource Negotiator)
YARN is a cluster management technology and resource scheduler introduced in Apache Hadoop 2.0. Standing for Yet Another Resource Negotiator, YARN separates the resource management and job scheduling functions from the data processing component MapReduce. It allows multiple data processing engines (like Spark, Tez, and Flink) to handle data stored in a single platform, enabling interactive querying, real-time analytics, and batch processing. YARN enhances the scalability and efficiency of Hadoop clusters by optimizing resource utilization and supporting diverse workloads.