Beyond the basics – advanced Hadoop concepts for Java developers and architects

While understanding the core concepts of Hadoop, such as HDFS and MapReduce, is essential, there are several advanced Hadoop components and technologies that Java developers and architects should be familiar with. In this section, we’ll explore YARN and HBase, two important components of the Hadoop ecosystem, focusing on their practical applications and how they can be leveraged in real-world projects.

Yet another resource negotiator

Yet Another Resource Negotiator (YARN) is a resource management and job scheduling framework in Hadoop. It separates resource management and processing components, allowing multiple data processing engines to run on Hadoop. Its key concepts are as follows:

• ResourceManager: Manages the global assignment of resources to applications
• NodeManager: Monitors and manages resources on individual nodes in a cluster
• ApplicationMaster: Negotiates resources...