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  1. Categories >> Software >> Big Data >> Hadoop >> Apache HDFS Hadoop Distributed File System
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Apache HDFS Hadoop Distributed File System Interview Questions
Questions Answers Views Company eMail

What is hdfs block size?

 55

How hdfs is different from traditional file systems?

 47

How is hdfs block size different from traditional file system block size?

 48

How data or a file is written into hdfs?

 50

What is a namenode in hadoop?

 46

What is secondary namenode?

 50

What do you mean by meta data in hdfs? List the files associated with metadata.

 32

Explain the hdfs architecture and list the various hdfs daemons in hdfs cluster?

 47

Can you modify the file present in hdfs?

 78

Define data integrity?

 31

What do you mean by the high availability of a namenode? How is it achieved?

 33

Hdfs stores data using commodity hardware which has higher chances of failures. So, how hdfs ensures the fault tolerance capability of the system?

 24

Define hadoop archives?

 27

What is secondary namenode? Is it a substitute or back up node for the namenode?

 52

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

 37

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Un-Answered Questions { Apache HDFS Hadoop Distributed File System }

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

35

Explain the difference between nas and hdfs?

34

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

37

Explain the difference between mapreduce engine and hdfs cluster?

97

Replication causes data redundancy and consume a lot of space, then why is it pursued in hdfs?

39

What is non-dfs used in hdfs web console

65

What happens when two clients try to access the same file on HDFS?

181

How is hdfs block size different from traditional file system block size?

48

What are the difference between of the “HDFS Block” and “Input Split”?

70

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

53

Explain what is difference between an input split and hdfs block?

69

How much Metadata will be created on NameNode in Hadoop?

54

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

33

List the files associated with metadata in hdfs?

32

How would you import data from MYSQL into HDFS ?

38

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