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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?

 794

Mention what are the data components used by Hadoop?

 688

Main Components of Hadoop?

 806

Mention what is the number of default partitioner in Hadoop?

 738

Explain the fundamental difference between Cassandra and Hadoop?

 228

Are Cassandra, Hadoop, Hbase and Cassandra are the same in nature? Specify.

 88

Why is block size large in Hadoop?

 64

How much Metadata will be created on NameNode in Hadoop?

 62

What do you mean by metadata in Hadoop?

 46

Difference Between Hadoop and HDFS?

 73

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

 72

Why we need impala hadoop?

 43

How do I configure hadoop high availability (ha) for impala?

 51

State some impala hadoop benefits?

 44

What is the work of Export in Hadoop sqoop?

 5



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1490

What are the modules that constitute the Apache Hadoop 2.0 framework?

1041

What is Apache Hadoop? Why is Hadoop essential for every Big Data application?

955

What are the core components of Apache Hadoop?

815

What is the difference between Apache Hadoop and RDBMS?

840

How is security achieved in Apache Hadoop?

951

What is Apache Hadoop?

891

What is a “Distributed Cache” in Apache Hadoop?

809

What is the problem with small files in Apache Hadoop?

832

What is Rack Awareness in Apache Hadoop?

849

Explain Erasure Coding in Apache Hadoop?

791

What is Disk Balancer in Apache Hadoop?

939

What is a speculative execution in Apache Hadoop MapReduce?

821

What are the modes in which Apache Hadoop run?

828

What is Safemode in Apache Hadoop?

769