Answer / Vishwas Pandey

In HDFS, a client requests data from the NameNode, which returns the block locations. The client then reads the data directly from the DataNodes that contain the blocks. To optimize performance, HDFS uses techniques like read-ahead and data prefetching to fetch multiple blocks at once.

If a particular file is 50 mb, will the hdfs block still consume 64 mb as the default size?

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How to access HDFS?

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How to copy a file into HDFS with a different block size to that of existing block size configuration?

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What is Hadoop Distributed File System- HDFS?

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How does hdfs ensure information integrity of data blocks squares kept in hdfs?

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Compare hbase vs hdfs?

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What is the command for archiving a group of files in hdfs.

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Explain the difference between an hdfs block and input split?

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Characterize data integrity? How does hdfs ensure information integrity of data blocks squares kept in hdfs?

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How to perform the inter-cluster data copying work in HDFS?

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What do you mean by meta information in hdfs? List the documents related to metadata.

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What is the throughput?

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