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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?

 42

Why rack awareness algorithm is used in hadoop?

 39

Can you change the block size of hdfs files?

 42

Explain about the indexing process in hdfs?

 71

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

 69

Replication causes data redundancy then why is pursued in hdfs?

 45

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?

 37

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

 34

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

 74

Explain hdfs?

 56

Explain the key features of hdfs?

 28

How does hdfs get a good throughput?

 58

Explain how indexing is done in hdfs?

 41

Explain the difference between mapreduce engine and hdfs cluster?

 107

Explain the difference between an hdfs block and input split?

 61

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

How does hdfs provides good throughput?

50

Is the hdfs block size reduced to achieve faster query results?

38

What is a block in Hadoop HDFS? What should be the block size to get optimum performance from the Hadoop cluster?

36

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?

37

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

39

How will you perform the inter cluster data copying work in hdfs?

35

What is a block?

53

Why is Reading done in parallel and writing is not in HDFS?

44

Why is block size set to 128 MB in HDFS?

39

How data or a file is written into hdfs?

50

What is throughput in HDFS?

60

Why HDFS stores data using commodity hardware despite the higher chance of failures in hadoop?

35

Differentiate HDFS & HBase?

40

Can we change the document present in hdfs?

35

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

36

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