Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletter Hub
Free Learning
Arrow right icon
timer SALE ENDS IN
0 Days
:
00 Hours
:
00 Minutes
:
00 Seconds
Arrow up icon
GO TO TOP
Apache Spark 2.x for Java Developers

You're reading from   Apache Spark 2.x for Java Developers Explore big data at scale using Apache Spark 2.x Java APIs

Arrow left icon
Product type Paperback
Published in Jul 2017
Publisher Packt
ISBN-13 9781787126497
Length 350 pages
Edition 1st Edition
Languages
Concepts
Arrow right icon
Authors (2):
Arrow left icon
 Kumar Kumar
Author Profile Icon Kumar
Kumar
 Gulati Gulati
Author Profile Icon Gulati
Gulati
Arrow right icon
View More author details
Toc

Table of Contents (19) Chapters Close

Title Page
Credits
Foreword
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Introduction to Spark FREE CHAPTER 2. Revisiting Java 3. Let Us Spark 4. Understanding the Spark Programming Model 5. Working with Data and Storage 6. Spark on Cluster 7. Spark Programming Model - Advanced 8. Working with Spark SQL 9. Near Real-Time Processing with Spark Streaming 10. Machine Learning Analytics with Spark MLlib 11. Learning Spark GraphX

Spark job configuration and submission


When a Spark job is launched, it creates a SparkConf object and passes it to the constructor of SparkContext. The SparkConf() object contains a near exhaustive list of customizable parameters that can tune a Spark job as per cluster resources. The SparkConf object becomes immutable once it is passed to invoke a SparkContext() constructor, hence it becomes important to not only identify, but also modify all the SparkConf parameters before creating a SparkContext object.

There are different ways in which Spark job can be configured.

Spark's conf directory provides the default configurations to execute a Spark job. The SPARK_CONF_DIR parameter can be used to override the default location of the conf directory, which usually is SPARK_HOME/conf and some of the configuration files that are expected in this folder are spark-defaults.conf, spark-env.sh, and log4j.properties. Log4j is used by Spark for logging mechanism and can be configured by modifying the log4j...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at £13.99/month. Cancel anytime
Visually different images