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Accepted
MikiBelavista
Asked: 2019-07-09 23:02:44 +0800 CST

Login as user hdfs failed:su: Authentication failure

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I ran this script to create users and groups

  groupadd hadoop
  useradd -g hadoop yarn
  useradd -g hadoop hdfs
  useradd -g hadoop mapred

But if I try to login

miki@miki:~$ su - hdfs
Password: 
su: Authentication failure

I have not submitted any password for my hdfs user.

cut -d: -f1 /etc/passwd output
yarn
hdfs
mapred

How to solve this problem?

permissions sudo login 18.04

1 Answers

  1. Best Answer

    If I unterstand correct:

    You created users wihtout password.

    You need to create or mod the user with the -p flag:

    useradd -g hadoop hdfs -p encyptedpasswordbyopenssl

    The password needs to be in an encrypted format. Create it with openssl passwd mypassword

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