Topic :: MapReduce





MapReduce Interview Questions
Questions Answers Views Company eMail

What is the utility of using Writable Comparable Custom Class in Map Reduce code?

 613

What is the core of the job in MapReduce framework?

 586

How Pig differs from MapReduce?

 570

MapReduce Types and Formats and Setting up a Hadoop Cluster?

 598

Why Mapreduce output written in local disk?

 621

Is YARN a replacement of Hadoop MapReduce?

 1 1562

What is the Hadoop MapReduce API contract for a key and value Class?

 1017

When is the reducers are started in a MapReduce job?

 582

What is the input type/format in MapReduce by default?

 769

What comes in Hadoop 2.0 and MapReduce V2 YARN

 705

Why comparison of types is important for MapReduce?

 681

What is the InputSplit in map reduce ?

 754

In which scenario Pig is better fit than MapReduce?

 535

Can you overwrite Hadoop MapReduce configuration in Hive?

 579

Explain the need for MapReduce while programming in Apache Pig?

 563



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Un-Answered Questions { MapReduce }

What MapReduce framework consists of?

767

Can we submit the mapreduce job from slave node?

846

What is a IdentityMapper and IdentityReducer in MapReduce ?

643

Explain Working of MapReduce?

668

Write a Mapreduce Program for Character Count ?

713




how to proceed to write your first mapreducer program?

1033

Developing a MapReduce Application?

660

Different ways of debugging a job in MapReduce?

807

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

661

How does MapReduce framework view its input internally?

594

What are the steps involved in MapReduce framework?

617

What is the Job interface in MapReduce framework?

647

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

851

What is the core of the job in MapReduce framework?

586

How Pig differs from MapReduce?

570