UrbanPro

Learn Hadoop from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

How do I find duplicates in Hadoop file?

Asked by Last Modified  

Follow 0
Answer

Please enter your answer

Accounting Expert

In reducer please check the number of values grouped for each key. If you have more than one value you know you have a duplicate. If you just want the duplicate values, write out the keys that have multiple values.
Comments

Related Questions

What is the response by teachers for basic members?
It seems to be catching up. However the general figures are low.
Sanya
0 0
9
What are the biggest pain points with Hadoop?
The biggest pain points with Hadoop are its complexity in setup and maintenance, slow processing due to disk I/O, high resource consumption, and difficulty in handling real-time data.
Anish
0 0
6
Is it worth to switch from manual testing to Hadoop?
Yes..Here you can n build your career easily .it is good time to switch into hadoop . You should learn with some realtime experience.after learning u can work into analytics or testing also.programming...
Aditi
0 0
7
Which Hadoop course should I take?
Take apache spark and scala course . Spark is high on demand now and one of the highly efficient and heavily used bigdata tools in market.I do provide Apache spark with scala and python course . You can reach me out for more details
Srinivasan
0 0
6

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Design Pattern
Prototype Design Pattern: Ø Prototype pattern refers to creating duplicate object while keeping performance in mind. Ø This pattern involves implementing a prototype interface which tells...

Loading Hive tables as a parquet File
Hive tables are very important when it comes to Hadoop and Spark as both can integrate and process the tables in Hive. Let's see how we can create a hive table that internally stores the records in it...

A Helpful Q&A Session on Big Data Hadoop Revealing If Not Now then Never!
Here is a Q & A session with our Director Amit Kataria, who gave some valuable suggestion regarding big data. What is big data? Big Data is the latest buzz as far as management is concerned....

BigDATA HADOOP Infrastructure & Services: Basic Concept
Hadoop Cluster & Processes What is Hadoop Cluster? Hadoop cluster is the collections of one or more than one Linux Boxes. In a Hadoop cluster there should be a single Master(Linux machine/box) machine...

13 Things Every Data Scientist Must Know Today
We have spent close to a decade in data science & analytics now. Over this period, We have learnt new ways of working on data sets and creating interesting stories. However, before we could succeed,...

Recommended Articles

Big data is a phrase which is used to describe a very large amount of structured (or unstructured) data. This data is so “big” that it gets problematic to be handled using conventional database techniques and software.  A Big Data Scientist is a business employee who is responsible for handling and statistically evaluating...

Read full article >

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

In the domain of Information Technology, there is always a lot to learn and implement. However, some technologies have a relatively higher demand than the rest of the others. So here are some popular IT courses for the present and upcoming future: Cloud Computing Cloud Computing is a computing technique which is used...

Read full article >

We have already discussed why and how “Big Data” is all set to revolutionize our lives, professions and the way we communicate. Data is growing by leaps and bounds. The Walmart database handles over 2.6 petabytes of massive data from several million customer transactions every hour. Facebook database, similarly handles...

Read full article >

Looking for Hadoop ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Hadoop Classes?

The best tutors for Hadoop Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn Hadoop with the Best Tutors

The best Tutors for Hadoop Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more