• MapReduce Service

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  4. Management of Clusters with Kerberos Authentication Enabled
  5. Changing the Password of an Operation User

Changing the Password of an Operation User

Scenario

Passwords of Human-machine system users must be regularly changed to ensure MRS cluster security. This section describes how to change your passwords on MRS Manager.

Impact on the System

If you have downloaded a user authentication file, download it again and obtain the keytab file after changing the password of the MRS cluster user.

Prerequisites

  • You have obtained the current password policies from the administrator.
  • You have obtained the URL to access MRS Manager from the administrator.

Procedure

  1. On MRS Manager, move the mouse cursor to in the upper-right corner.

    On the menu that is displayed, select Change Password.

  2. Fill in Old PasswordNew Password, and Confirm Password. Click OK.

    For the MRS 1.6.0 or later cluster, the password complexity requirements are as follows:
    • The password must contain 8 to 32 characters.
    • The password must contain at least three types of the following: lowercase letters, uppercase letters, digits, spaces, and special characters which can only be ~`!?,.:;-_'(){}[]/<>@#$%^&*+|\=
    • The password cannot be the same as the username or reverse username.
    For the MRS 1.5.0 cluster, the password complexity requirements are as follows:
    • The password must contain 6 to 32 characters.
    • The password must contain at least two types of the following: lowercase letters, uppercase letters, digits, spaces, and special characters which can only be ~`!?,.:;-_'(){}[]/<>@#$%^&*+|\=
    • The password cannot be the same as the username or reverse username.
    NOTE:

    For MRS clusters of other versions, the password complexity requirements are as follows:

    • The password must contain at least eight characters.
    • The password must contain at least four types of the following: lowercase letters, uppercase letters, digits, spaces, and special characters which can only be ~`!?,.:;-_'(){}[]/<>@#$%^&*+|\=
    • The password cannot be the same as the username or reverse username.
    • The password cannot be the same as the previous password.