HDFS Interview Tips
HDFS runs in user space, as contrasted to the other filesystems HDFS has a default block size of 64 MB. Default replication factor is 3 and this is specified in hdfs-site.xml, in property dfs.replication HDFS has a master/slave architecture DataNode(slave) is responsible for low-level operations including block creation, deletion, reads and writes. A NameNode(master) keeps…
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