Hadoop in Practice, Second Edition

List of Figures

Chapter 1. Hadoop in a heartbeat

Figure 1.1. The Hadoop environment is a distributed system that runs on commodity hardware.

Figure 1.2. High-level Hadoop 2 master-slave architecture

Figure 1.3. An HDFS client communicating with the master NameNode and slave DataNodes

Figure 1.4. The logical YARN architecture showing typical communication between the core YARN components and YARN application components

Figure 1.5. A client submitting a job to MapReduce, breaking the work into small map and reduce tasks

Figure 1.6. A logical view of the map function that takes a key/value pair as input

Figure 1.7. MapReduce’s shuffle and sort phases

Figure 1.8. A logical view of the reduce function that produces output for flat files, NoSQL rows, ...