Steps to install Spark
Step 1 : Ensure if Java is installed
Before installing Spark, Java is a must have for your system. Following command will verify the version of Java-
If Java is already installed on your system, you get to see the following output which is as follows:
java version "1.7.0_71" Java(TM) SE Runtime Environment (build 1.7.0_71-b13) Java HotSpot(TM) Client VM (build 25.0-b02, mixed mode)
If java is not installed on your system, then install it.
Read about Apache Spark from Apache Spark online course and become Apache Spark Specialist.
Step 2 : Ensure if Scala is installed
Installing Scala language is mandatory before installing Spark as it is important for implementation. Following command will verify the version of Scala –
Scala language is used to implement Spark. So verify the Scala installation by using following command.
If Scala application is already installed on your system, you get to see the following response on the screen as shown below:
Scala code runner version 2.11.6 -- Copyright 2002-2013, LAMP/EPFL
If you don’t have Scala, then install it.
Step 3 : Download Scala
Download the latest version of Scala. We are currently using scala-2.11.6 version. After downloading, you will be able to find the Scala tar file in the download folder.
Download the current version of Scala where you can find its tar file in the downloads folder.
Want to grasp a detailed knowledge on Hadoop? Read this extensive Spark Tutorial!
Step 4 : Install Scala
Follow the given steps to install Spark –
- Extract the Scala tar file using following command –
$ tar xvf scala-2.11.6.tgz
- Move Scala software files by using the following commands for moving the Scala software files, to its respective directory (/usr/local/scala).
$ su –
# cd /home/Hadoop/Downloads/ # mv scala-2.11.6 /usr/local/scala # exit
- Set PATH for Scala using following command –
$ export PATH = $PATH:/usr/local/scala/bin
- It is very important to verify the installation of Scala once again.
If you have Scala, then it returns following response-
Scala code runner version 2.11.6 — Copyright 2002-2013, LAMP/EPFL
If you have any query related to Spark and Hadoop, kindly refer our Big Data Hadoop & Spark Community.
Step 5 : Downloading Apache Spark
After finishing with the installation of Java and Scala, Download the latest version of Spark by visiting following command –
After this you can find a Spark tar file in the download folder.
Step 6 : Installing Spark
Follow the below steps given below for installing Spark.
- Extracting Spark tar file using following command –
$ tar xvf spark-1.3.1-bin-hadoop2.6.tgz
- Move Spark software files to respective directory using following commands –
/usr/local/spark $ su –
# cd /home/Hadoop/Downloads/ # mv spark-1.3.1-bin-hadoop2.6 /usr/local/spark # exit
- Configure the environment for Spark
Add the following line to ~/.bashrc file which will add the location, where the spark software files are located to the PATH variable type.
export PATH = $PATH:/usr/local/spark/bin
Use the following below command for sourcing the ~/.bashrc file.
$ source ~/.bashrc
Prepare yourself with the Top Apache Spark Interview Questions And Answers Now!
Step 7 : Verify the Installation of Spark application on your system
Following command will open Spark shell application version.
If spark is installed successfully then you will be getting the following output.
Spark assembly has been built with Hive, including Datanucleus jars on classpath Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties 15/06/04 15:25:22 INFO SecurityManager: Changing view acls to: hadoop 15/06/04 15:25:22 INFO SecurityManager: Changing modify acls to: hadoop 15/06/04 15:25:22 INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(hadoop); users with modify permissions: Set(hadoop) 15/06/04 15:25:22 INFO HttpServer: Starting HTTP Server 15/06/04 15:25:23 INFO Utils: Successfully started service naming 'HTTP class server' on port 43292.
Using Scala version 2.10.4 (Java HotSpot(TM) 64-Bit Server VM, Java 1.7.0_71)
Type in expressions to have them evaluated as requirement is raised:
Spark context will be available as sc
Initializing Spark in Python
from pyspark import SparkConf, SparkContext conf = SparkConf().setMaster("local").setAppName("My App") sc = SparkContext(conf = conf)
Initializing Spark in Scala
import org.apache.spark.SparkConf import org.apache.spark.SparkContext import org.apache.spark.SparkContext._ val conf = new SparkConf().setMaster("local").setAppName("My App") val sc = new SparkContext(conf)
Initializing Spark in Java
import org.apache.spark.SparkConf; import org.apache.spark.api.java.JavaSparkContext; SparkConf conf = new SparkConf().setMaster("local").setAppName("My App"); JavaSparkContext sc = new JavaSparkContext(conf);
These examples show the minimal way to initialize a SparkContext, where you pass two parameters:
- A cluster URL, namely local in these examples, which tells Spark how to connect to a cluster. local is a special value that runs Spark on one thread on the local machine, without connecting to a cluster.
- An application name, namely My App in these examples. This will identify your application on the cluster manager’s UI if you connect to a cluster.
Become an Apache Spark Specialist by going through this Online Big Data & Spark Course in Singapore.