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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

When and how to create hadoop archive?

 408

What is the difference between namenode and datanode in hadoop?

 466

Ideally what should be the replication factor in hadoop?

 388

What is rack awareness in hadoop?

 457

While starting hadoop services, datanode service is not running?

 410

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

 557

Why slaves limited to 4000 in hadoop version 1?

 443

What is heartbeat in hadoop?

 396

Explain small file problem in hadoop

 397

Ideally what should be the block size in hadoop?

 425

What happen when namenode enters in safemode in hadoop?

 393

Give some points of pig for hadoop ?

 516

How does master slave architecture in the hadoop?

 756

Explain the wordcount implementation via hadoop framework ?

 674

What is hadoop framework?

 664



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1417

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

961

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

850

What are the core components of Apache Hadoop?

718

What is the difference between Apache Hadoop and RDBMS?

743

How is security achieved in Apache Hadoop?

836

What is Apache Hadoop?

800

What is a “Distributed Cache” in Apache Hadoop?

725

What is the problem with small files in Apache Hadoop?

729

What is Rack Awareness in Apache Hadoop?

749

Explain Erasure Coding in Apache Hadoop?

693

What is Disk Balancer in Apache Hadoop?

802

What is a speculative execution in Apache Hadoop MapReduce?

739

What are the modes in which Apache Hadoop run?

747

What is Safemode in Apache Hadoop?

684