How to set cpu cores for spark task

0 votes
I am running some tasks in my Spark application and it is running a little slow so I am thinking of increasing the number of cores assigned to each task. How can I do it?
Mar 12, 2019 in Apache Spark by Prateek
3,250 views

1 answer to this question.

0 votes

By default, each task is allocated with 1 cpu core. To increase this, you can dynamically change the number of cores allocated;

val sc = new SparkContext(new SparkConf())
./bin/spark-submit <all your existing options> --spark.task.cpus=<number of cores>
answered Mar 12, 2019 by Veer

Related Questions In Apache Spark

0 votes
1 answer
0 votes
1 answer

How to set executors for static allocation in Spark Yarn?

Open Spark shell and run the following ...READ MORE

answered Mar 28, 2019 in Apache Spark by Raj
976 views
0 votes
1 answer

How to set extra JVM options for Spark application?

You cans set extra JVM options that ...READ MORE

answered Mar 28, 2019 in Apache Spark by Raj
3,090 views
0 votes
1 answer

How to get ID of a map task in Spark?

you can access task information using TaskContext: import org.apache.spark.TaskContext sc.parallelize(Seq[Int](), ...READ MORE

answered Nov 20, 2018 in Apache Spark by Frankie
• 9,830 points
2,529 views
+1 vote
2 answers
+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
9,349 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
1,715 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
86,564 views
0 votes
1 answer

How to set time for task speculation?

By default, the check for task speculation ...READ MORE

answered Mar 12, 2019 in Apache Spark by Veer
205 views
0 votes
1 answer

How to make Spark wait for more time for acknowledgement?

Use the following command to increase the ...READ MORE

answered Mar 11, 2019 in Apache Spark by Raj
1,445 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