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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

When and how to create hadoop archive?

 444

What is the difference between namenode and datanode in hadoop?

 495

Ideally what should be the replication factor in hadoop?

 425

What is rack awareness in hadoop?

 487

While starting hadoop services, datanode service is not running?

 439

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

 589

Why slaves limited to 4000 in hadoop version 1?

 487

What is heartbeat in hadoop?

 426

Explain small file problem in hadoop

 421

Ideally what should be the block size in hadoop?

 461

What happen when namenode enters in safemode in hadoop?

 429

Give some points of pig for hadoop ?

 555

How does master slave architecture in the hadoop?

 815

Explain the wordcount implementation via hadoop framework ?

 724

What is hadoop framework?

 719



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1454

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

1005

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

907

What are the core components of Apache Hadoop?

784

What is the difference between Apache Hadoop and RDBMS?

807

How is security achieved in Apache Hadoop?

909

What is Apache Hadoop?

851

What is a “Distributed Cache” in Apache Hadoop?

777

What is the problem with small files in Apache Hadoop?

783

What is Rack Awareness in Apache Hadoop?

811

Explain Erasure Coding in Apache Hadoop?

750

What is Disk Balancer in Apache Hadoop?

887

What is a speculative execution in Apache Hadoop MapReduce?

793

What are the modes in which Apache Hadoop run?

800

What is Safemode in Apache Hadoop?

733