What is the importance of dfs.namenode.name.dir in HDFS?

58

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How one can format Hadoop HDFS?

47

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Explain what happens if, during the PUT operation, HDFS block is assigned a replication factor 1 instead of the default value 3?

42

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How to format the HDFS? How frequently it will be done?

36

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Which one is the master node in HDFS? Can it be commodity hardware?

47

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What happens if the block on Hadoop HDFS is corrupted?

61

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What is a block in HDFS, why block size 64MB?

55

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How NameNode tackle Datanode failures in HDFS?

32

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How is indexing done in Hadoop HDFS?

54

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

46

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What are the main properties of hdfs-site.xml file?

53

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Describe HDFS Federation?

40

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What is active and passive NameNode in HDFS?

228

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Does HDFS allow a client to read a file which is already opened for writing in hadoop?

42

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How data or file is read in Hadoop HDFS?

37

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