Explain how HDFS communicates with Linux native file system?

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Explain how HDFS communicates with Linux native file system?..

Answer / Vikas Agarwal

HDFS communicates with the Linux native file system (NFSS) through a service called Secondary NameNode. The Secondary NameNode periodically copies the FileSystemImage and the EditLog from the Active NameNode to the local disk, and then merges them to produce a new FileSystemImage. This process helps in preserving data and metadata in case of a failure.

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