Tuesday Big Data Series

Understanding NameNode and DataNode in HDFS

HDFS has a master/slave architecture and is built-up of basically two kindsĀ of nodes: NameNode (which acts as a Master) and DataNodes (which acts as slaves). NameNode and DataNode are pieces of software that are designed to run on commodity machines which typically run on a GNU/Linux operating system (OS). HDFS is built using Java language,… Continue reading Understanding NameNode and DataNode in HDFS