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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

When and how to create hadoop archive?

 493

What is the difference between namenode and datanode in hadoop?

 544

Ideally what should be the replication factor in hadoop?

 494

What is rack awareness in hadoop?

 531

While starting hadoop services, datanode service is not running?

 491

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

 648

Why slaves limited to 4000 in hadoop version 1?

 540

What is heartbeat in hadoop?

 468

Explain small file problem in hadoop

 465

Ideally what should be the block size in hadoop?

 499

What happen when namenode enters in safemode in hadoop?

 479

Give some points of pig for hadoop ?

 588

How does master slave architecture in the hadoop?

 884

Explain the wordcount implementation via hadoop framework ?

 765

What is hadoop framework?

 765



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1499

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

1048

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

969

What are the core components of Apache Hadoop?

829

What is the difference between Apache Hadoop and RDBMS?

856

How is security achieved in Apache Hadoop?

965

What is Apache Hadoop?

900

What is a “Distributed Cache” in Apache Hadoop?

824

What is the problem with small files in Apache Hadoop?

839

What is Rack Awareness in Apache Hadoop?

859

Explain Erasure Coding in Apache Hadoop?

803

What is Disk Balancer in Apache Hadoop?

953

What is a speculative execution in Apache Hadoop MapReduce?

834

What are the modes in which Apache Hadoop run?

840

What is Safemode in Apache Hadoop?

781