HDFS: Filesystem Metadata and how it persists
In post that explains the HDFS architecture, we saw that HDFS namespace is stored and maintained by NameNode. What is HDFS Namespace? Namespace is a hierarchy of directories, files and blocks in HDFS. It supports file system operations such as creation, modification, deletion and listing of files and directories. One of the important features of HDFS is… Continue reading HDFS: Filesystem Metadata and how it persists