Installing Root or Sudo User Password

The following information concerns the creation of root and sudo users and passwords in ECP.

IMPORTANT
Do not create Linux install user-ID as 5000, as it may conflict with mapR user-ID 5000 that may be used on bare-metal Data Fabric installation. Data Fabric tenant storage may fail if the mapR user-ID matches with the ERE Install user-ID.

You can check this by running the id <username> command on the Linux host.

When beginning ECP installation, specify a Linux install user (root or sudo). This user must be created before beginning the ECP installation process. That user cannot be deleted after installation, but the user’s password can be changed. The user must remain across the entire ECP lifetime because all files and software installed by ECP on the platform hosts will be owned by that user.

Note that the user is only used for controller communication during initial install; afterwards, Erlang and RPC are used for controller communication.

When adding a new host to ECP, the controller will make an SSH connection to the new host. The user needs to either use an SSH key with no password enabled or the correct username and password. Passwords can be changed on the Linux host level; login to ECP admin is not necessary.