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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

When and how to create hadoop archive?

 485

What is the difference between namenode and datanode in hadoop?

 536

Ideally what should be the replication factor in hadoop?

 478

What is rack awareness in hadoop?

 522

While starting hadoop services, datanode service is not running?

 480

what happens when namenode goes down during file read operation in hadoop?

 639

Why slaves limited to 4000 in hadoop version 1?

 533

What is heartbeat in hadoop?

 456

Explain small file problem in hadoop

 456

Ideally what should be the block size in hadoop?

 491

What happen when namenode enters in safemode in hadoop?

 468

Give some points of pig for hadoop ?

 588

How does master slave architecture in the hadoop?

 873

Explain the wordcount implementation via hadoop framework ?

 758

What is hadoop framework?

 758



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1492

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

1042

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

957

What are the core components of Apache Hadoop?

817

What is the difference between Apache Hadoop and RDBMS?

842

How is security achieved in Apache Hadoop?

954

What is Apache Hadoop?

892

What is a “Distributed Cache” in Apache Hadoop?

812

What is the problem with small files in Apache Hadoop?

833

What is Rack Awareness in Apache Hadoop?

850

Explain Erasure Coding in Apache Hadoop?

792

What is Disk Balancer in Apache Hadoop?

940

What is a speculative execution in Apache Hadoop MapReduce?

822

What are the modes in which Apache Hadoop run?

830

What is Safemode in Apache Hadoop?

771