Step by step – Hadoop Installation on Fedora 30

Getting Started

10. 10. Setting Up SSH

    Follow to Set Up the Required Local SSH Connection
    Start and Enable the SSH Service:

    sudo systemctl enable --now ssh

    Generate SSH Keys for Local Access:

    ssh-keygen -b 2048 -t rsa

    cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

    chmod 600 ~/.ssh/authorized_keys

    chmod 700 ~/.ssh

    Testing the SSH Connection:

    ssh -o "StrictHostKeyChecking=no" 127.0.0.1

11. 11. Formatting HDFS File System

    Moreover, to Format the HDFS
    Run:

    hdfs namenode -format

    

12. 12. Starting Up Hadoop

    Finally, to Start Up Hadoop Services
    Execute:

    start-dfs.sh

    start-yarn.sh

    And then to check they are running:

    jsp

    

    In the output you should see the started Nodes and Managers:

    • DataNode
    • NameNode
    • SecondaryNameNode
    • NodeManager
    • ResourceManager

13. 13. Hadoop Getting Started

    Apache Hadoop Database Getting Started Guide

    Hadoop MapReduce Quick Start

    The Linked Guide Contains a Step-by-Step Jump Start Guide for Apache Hadoop Database.