MapR 5.0 Documentation : Re-formatting a Node

  1. Change to the root user (or use sudo for the following commands).
  2. Stop the Warden:
    service mapr-warden stop
  3. Remove the disktab file:
    rm /opt/mapr/conf/disktab
  4. Create a text file /tmp/disks.txt that lists all the disks and partitions to format for use by MapR. See Setting Up Disks for MapR.
  5. Use disksetup to re-format the disks:
    disksetup -F /tmp/disks.txt
  6. Start the Warden:
    service mapr-warden start