Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

  1. Categories >> Software >> Big Data >> Hadoop >> Apache Spark
  2. Suggest New Category

Explain Spark coalesce() operation?

Question Posted / noopur


Explain Spark coalesce() operation?..

Answer / Aruna

The `coalesce()` function in Apache Spark is used to reduce the number of partitions in an RDD while preserving the data. It merges partitions together and can help improve performance by reducing the amount of shuffling required during subsequent operations.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Apache Spark Interview Questions

What do you know about transformations in spark?

1 Answers  

How to explain Bigdatadeveloper projects

1 Answers  

What is off heap memory in spark?

1 Answers  

What is spark vectorization?

1 Answers  

Name some companies that are already using Spark Streaming?

1 Answers  

What is a tuple in spark?

1 Answers  

What is an "RDD Lineage"?

1 Answers  

How is rdd fault?

1 Answers  

What do you understand by Executor Memory in a Spark application?

1 Answers  

What is difference between map and flatmap?

1 Answers  

Define Actions.

1 Answers  

What is a dstream in apache spark?

1 Answers  

For more Apache Spark Interview Questions Click Here
Categories