Welcome to the Hadoop setup tutorial! Setting up Hadoop is the first step to exploring distributed computing. Below are the key steps to get started:

1. Prerequisites 📦

  • Java Development Kit (JDK): Ensure Java 8 or later is installed.
    💡 Check Java version
  • Operating System: Linux (Ubuntu/Debian recommended) or macOS.
  • Basic command-line skills: Familiarity with terminal navigation and commands.

2. Installation Steps 🔧

  1. Download Hadoop:
    Visit the official Hadoop website to get the latest stable release.
  2. Extract the Archive: 
    tar -xzf hadoop-<version>.tar.gz
  3. Set Environment Variables:
    Add Hadoop paths to your .bashrc or .zshrc file.
    📝 Example: export HADOOP_HOME=/path/to/hadoop
  4. Verify Installation:
    Run hadoop version in the terminal to confirm it's working.

3. Configuration Tips ⚙️

  • Core-site.xml: Configure the default filesystem (e.g., file:/// for local mode).
    📎 Learn more about Hadoop configuration
  • Hdfs-site.xml: Set replication factors and data directories.
  • Yarn-site.xml: Adjust memory settings for your cluster.

4. Next Steps 🚀

  • Start the Hadoop cluster with: 
    start-dfs.sh && start-yarn.sh
  • Access the Hadoop UI at http://localhost:9870 (NameNode) and http://localhost:8088 (ResourceManager).

Hadoop setup steps

Step-by-step Hadoop setup process

For advanced configurations, explore our Hadoop Optimization Guide. Happy Hadoop-ing! 🌟