What does reduce action do in Spark

0 votes
Can anyone explain what does reduce action do in Spark?
Jul 4, 2019 in Apache Spark by kanika
 • 661 views

1 answer to this question.

0 votes

Hey,

Reduce action converts an RDD to a single value by applying recursively the provided (in argument) function on the elements of an RDD until only one value is left.

answered Jul 4, 2019 by Gitika
 • 65,770 points

Related Questions In Apache Spark

0 votes
1 answer

What do we mean by an RDD in Spark?

The full form of RDD is a ...READ MORE

answered Jun 18, 2018 in Apache Spark by nitinrawat895
 • 11,380 points • 4,054 views
+1 vote
1 answer

Can anyone explain what is RDD in Spark?

RDD is a fundamental data structure of ...READ MORE

answered May 24, 2018 in Apache Spark by Shubham
 • 13,490 points • 2,712 views
0 votes
1 answer

Spark 2.3? What is new in it?

Here are the changes in new version ...READ MORE

answered May 28, 2018 in Apache Spark by kurt_cobain
 • 9,350 points • 805 views
0 votes
1 answer

How does partitioning work in Spark?

By default a partition is created for ...READ MORE

answered May 31, 2018 in Apache Spark by nitinrawat895
 • 11,380 points • 1,226 views
+1 vote
2 answers

How do I get number of columns in each line from a delimited file??

Instead of spliting on '\n'. You should ...READ MORE

answered Aug 7, 2019 in Apache Spark by ashish
 • 5,562 views
+1 vote
1 answer

Hadoop Mapreduce word count Program

Firstly you need to understand the concept ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
 • 11,380 points • 11,057 views
0 votes
1 answer

hadoop.mapred vs hadoop.mapreduce?

org.apache.hadoop.mapred is the Old API  org.apache.hadoop.mapreduce is the ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
 • 11,380 points • 2,559 views
+2 votes
11 answers

hadoop fs -put command?

Hi, You can create one directory in HDFS ...READ MORE

answered Mar 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 108,975 views
+1 vote
1 answer

What is reduce() action in Spark?

Hey, It takes a function that operates on two ...READ MORE

answered Jul 2, 2019 in Apache Spark by Gitika
 • 65,770 points • 5,597 views
0 votes
1 answer

What is Action in Spark?

Hi, Actions are RDD’s operation, that value returns ...READ MORE

answered Jul 3, 2019 in Apache Spark by Gitika
 • 65,770 points • 11,873 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP
"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.