https://community.cloudera.com/t5/Support-Questions/quot-What-is-cluster-single-node-cluster-and-node-quot/m-p/194047#M156107 <P>The cluster consists of one or more computers/machines working together to provide high availability, reliability, and scalability towards service being provided to clients. If one server/machine fails then work/resources get distributed among other machines in the same cluster. </P><P>Single node cluster or pseudo-distributed cluster is the one in which all daemon like <A href="https://data-flair.training/blogs/hadoop-hdfs-namenode-high-availability/"> NameNode</A>, data node, Jobtracker, and tasktracker runs on the single machine. Default replication factor is 1. <BR />Multinode cluster is a cluster which is basically used in master-slave fashion where master and slaves runs on different machines and master node/machine runs Namenode and TaskTracker daemons and slave machine runs Datanode and JobTracker daemons. <BR /> <BR />Note: - YARN is a cluster resource management.</P> Thu, 19 Jul 2018 17:53:45 GMT shrivastav_rinu 2018-07-19T17:53:45Z