Hadoop HDFS Deployment

Question

I am trying to understand the relationship between HDFS and the various other constituents of a typical Hadoop cluster. Is HDFS only supposed to be running on NameNodes and DataNodes , or is it running on every single node type ( MasterNode , SlaveNodes , ZooKeeperNode , etc.)?

Answer 1

You can refer to the read/write process in Hadoop-The definitve Guide book. No all data is stored on every node. There are few concepts to frequently monitor the process and interact accordingly. Please revisit your theoretical concepts. Happy learning