![]() ![]() Test that Java has been successfully installed by running the following command: $ java -version We will install the OpenJDK, which will install both a JDK and JRE: $ sudo yum install java-1.7.0-openjdk-devel Run the sestatus command to ensure SELinux is not enabled: $ sestatus $ sudo sed -i "\$.disable_ipv6 = 1" /etc/nf Red Hat Enterprise Linux 7.2 (The installation steps would be similar using other Linux distributions such as Ubuntu)ĭisable SELinux (this is known to cause issues with Hadoop): $ sudo sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/configĭisable IPv6 (this is also known to cause issues with Hadoop): $ sudo sed -i "\$.disable_ipv6 = 1" /etc/nf In this exercise we will install a pseudo-distributed mode Hadoop cluster using the latest Hadoop release downloaded from .Īs this is a test cluster the following specifications will be used in our example: Try It Yourself: Installing Hadoop Using the Apache Release
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