What is the optimal block size in HDFS?

40

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What do you mean by metadata in HDFS?

55

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Data node block size in HDFS, why 64MB?

51

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What happens if the block in HDFS is corrupted?

37

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What is Fault Tolerance in HDFS?

45

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What is the procedure to create users in HDFS and how to allocate Quota to them?

39

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How does a client read/write data in HDFS?

41

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What is the difference between MapReduce engine and HDFS cluster?

100

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Explain NameNode and DataNode in HDFS?

51

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How data or file is read in HDFS?

38

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How is indexing done in HDFS?

49

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What alternate way does HDFS provides to recover data in case a Namenode, without backup, fails and cannot be recovered?

35

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Why HDFS performs replication, although it results in data redundancy?

132

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Why ‘Reading‘ is done in parallel and ‘Writing‘ is not in HDFS?

33

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What are the key features of HDFS?

36

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