Hadoop is an open-source platform that enables us for big data data processing, storage and management. It consists of components such as the HDFS( Hadoop distributed file system), Mapreduce, spark and YARN.
HDFS uses for data storage and Mapreduce enables us for parallel bulk data processing. Spark helps us for real-time data processing. YARN also uses for resource management among the Hadoop nodes.
Hadoop nodes can be classified as master nodes and slave nodes. The master node is known as JobTracker and the slave one is called TaskTracker.
The JobTracker controls the slave nodes ( TaskTracker) and assigns them Mapreduce tasks.
meda Changed status to publish 08/07/2022