While installing Hadoop for multi-cluster , i needed to re-name machines, so that each virtual machine can be called differently so for this i did following steps
- Open the terminal in UBUNTU
- sudo gedit /etc/hostname
- you will be prompted for password, enter that
- Editor will be opened where you can insert the name you like
- Save it
- and now Restart the system to apply the changes
- You can watch the steps in videos
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