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Topic :: MapReduce





MapReduce Interview Questions
Questions Answers Views Company eMail

What is a RecordReader in Hadoop MapReduce?

 635

How to write MapReduce Programs?

 652

What is the difference between Pig and MapReduce?

 570

What is a speculative execution in Apache Hadoop MapReduce?

 739

When is it not recommended to use MapReduce paradigm for large scale data processing?

 617

What are the main components of MapReduce Job?

 636

What combiners is and when you should use a combiner in a MapReduce Job?

 579

What is partitioning in MapReduce?

 663

State some use cases where Hadoop MapReduce works well and where it does not.

WalMart,

311

What advantages does Spark offer over Hadoop MapReduce?

 275

What are the disadvantages of using Apache Spark over Hadoop MapReduce?

 441

How can you launch Spark jobs inside Hadoop MapReduce?

 302

Which one will you choose for a project –Hadoop MapReduce or Apache Spark?

 285

What is the difference between MapReduce engine and HDFS cluster?

 94

What is the difference between RDBMS with Hadoop MapReduce?

 761



Related Topics


Un-Answered Questions { MapReduce }

What MapReduce framework consists of?

1057

Can we submit the mapreduce job from slave node?

1051

What is a IdentityMapper and IdentityReducer in MapReduce ?

900

Explain Working of MapReduce?

920

Write a Mapreduce Program for Character Count ?

1004

how to proceed to write your first mapreducer program?

1304

Developing a MapReduce Application?

900

Different ways of debugging a job in MapReduce?

1059

What are combiners? When should I use a combiner in my MapReduce Job?

865

How does MapReduce framework view its input internally?

829

What are the steps involved in MapReduce framework?

932

What is the Job interface in MapReduce framework?

861

How to overwrite an existing output file during execution of mapreduce jobs?

1047

What is the core of the job in MapReduce framework?

794

How Pig differs from MapReduce?

738