Apache YARN

Apache YARN (Yet Another Resource Negotiator) is a key component of the Apache Hadoop framework, designed to manage computing resources in a distributed system. It allows different applications to share resources efficiently, scheduling tasks and allocating resources as needed. Think of YARN as a traffic manager for data processing jobs: it ensures that various programs running on a cluster of computers don’t conflict and optimally use available resources. This enhances performance and flexibility, making it easier to process large volumes of data across multiple applications simultaneously.