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  • Page: NameNode (HADOOP2)
    The is the centerpiece of an HDFS file system. It keeps the directory tree of all files in the file system, and tracks where across the cluster the file data is kept. It does not store the data of these files itself....
  • Page: NameNode (NUTCH)
    The is the NDFS service that provides the directory and file naming for the blocks served by the DataNode servers.