How to Install and Configure Apache Hadoop on a Single Node in CentOS 7

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Matei Cezar

I'am a computer addicted guy, a fan of open source and linux based system software, have about 4 years experience with Linux distributions desktop, servers and bash scripting.

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17 Responses

  1. Andres says:

    Hey ons, i had the same issue so i figured it out, basically when you edit vim /etc/hosts put a line like:

    X.X.X.X master.hadoop.lan master

    then i got it


  2. ons says:

    i have a problem , hostnamectl set-hostname master doesn’t work, i installed systemd package for it but no one of them work

    • Matei Cezar says:

      You need to reboot the system in order to apply hostnamectl settings. Seems like hostnamectl does not apply settings on-fly. What does hostname -f command output shows you?

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