What are the main hdfs-site.xml properties?

41

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What do you mean by the High Availability of a NameNode in Hadoop HDFS?

33

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How does HDFS ensure Data Integrity of data blocks stored in HDFS?

39

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How to remove safemode of namenode forcefully in HDFS?

36

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Who divides the file into Block while storing inside hdfs in hadoop?

47

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What are file permissions in HDFS? how does HDFS check permissions for files/directory?

49

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How one can change Replication factor when Data is already stored in HDFS

42

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Explain HDFS “Write once Read many” pattern?

30

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Why is block size set to 128 MB in HDFS?

39

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What should be the HDFS Block size to get maximum performance from Hadoop cluster?

35

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

53

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How one can format Hadoop HDFS?

45

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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?

38

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

33

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

47

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