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Install Your Own Hadoop on Windows and Run MapReduce Programs
Course Overview
1. Introduction
2. Installation of Hadoop 1.0
3. MapReduce Programs in Hadoop 1.0
4. Installation of Hadoop 2.0
5. MapReduce Programs in Hadoop 2.0
6. What is Next?
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2.3. Configure OpenSSH in Cygwin

    1. Once Cygwin is installed and running properly, you’ll need to configure the ssh components in order to execute Hadoop scripts.
    2. Right-click on your Cygwin shortcut, and click on “Run as administrator”. This will make sure we have the proper privileges for everything. You’ll see an empty Cygwin window come up.

      Hadoop Installation on Windows

    3. Execute the following command to start configuration wizard for openssh.
      ssh-host-config
    4. You’ll see the script generate some default files, and then you’ll be prompted for whether or not you want to enable “Privilege Separation.” It’s on by default in standard installations of OpenSSH on other systems, so go ahead and say “yes” to the prompt.

      Hadoop Installation on Windows

    5. Next, you’ll be asked if you want sshd to run as a service. This will allow you to get SSH access regardless of whether or not Cygwin is currently running, which is what we want. Go ahead and hit “yes” to continue.

      Hadoop Installation on Windows

    6. Next, you’ll be asked to enter a value for the daemon. Enter the value ntsec
    7. You’ll see the script give you some information on your system and then it will ask you to create a privileged account with the default username “cyg_server”. The default works well, so type “no” when it asks you if you want to use a different account name, although you can change this if you really like.

      Hadoop Installation on Windows

    8. 8. Enter an easy-to-remember password. After some information, you’ll get a success message:
      “Host configuration finished. Have fun!”
    9. You can either restart, or enter the following command to start the sshd service:
      net start sshd


      Hadoop Installation on Windows



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