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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 the problem in having lots of small files in hdfs?

 46

Why rack awareness algorithm is used in hadoop?

 41

Can you change the block size of hdfs files?

 45

Explain about the indexing process in hdfs?

 73

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

 74

Replication causes data redundancy then why is pursued in hdfs?

 47

Since the data is replicated thrice in hdfs, does it mean that any calculation done on one node will also be replicated on the other two?

 41

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

 40

What is the difference between an hdfs block and input split?

 74

Explain hdfs?

 58

Explain the key features of hdfs?

 32

How does hdfs get a good throughput?

 61

Explain how indexing is done in hdfs?

 43

Explain the difference between mapreduce engine and hdfs cluster?

 131

Explain the difference between an hdfs block and input split?

 61

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

What are tools available to send the streaming data to hdfs?

39

What is a task tracker?

45

How to split single hdfs block into partitions rdd?

46

What is the difference between nas (network attached storage) and hdfs?

50

How data or file is written into HDFS?

50

When NameNode enter in Safe Mode?

38

What happens if the block in HDFS is corrupted?

37

What is a block in HDFS? what is the default size in Hadoop 1 and Hadoop 2? Can we change the block size?

64

Can you define a block and block scanner in hdfs?

49

What is the module in HDFS?

40

What is throughput? How does HDFS get a good throughput?

48

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

31

How to Delete directory from HDFS?

42

What do you mean by the high availability of a namenode?

34

What is the difference between an hdfs block and input split?

74

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