Java is a general purpose programming language often used for object-oriented programming (OOP). Many of the distributed technologies that we discussed in Chapter 1, The Big Data Ecosystem, are originally written in Java. As such, the Java Development Kit (JDK) is required to be installed in our local development environment in order to run those software services within Java Virtual Machines (JVM). Apache Spark 2.3.x requires Java 8+ in order to run. To install Oracle Java SE Development Kit 8, please execute the following shell commands as the Linux root user or another user with elevated privileges:
> rpm -ivh jdk-8u181-linux-x64.rpm> vi /etc/profile.d/java.sh $ export PATH=/usr/java/default/bin:$PATH $ export ...
