• MapReduce Service

mrs
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  2. MapReduce Service
  3. User Guide
  4. MRS Manager Operation Guide
  5. Security Management
  6. Changing the Password for a Component Database User

Changing the Password for a Component Database User

Scenario

Periodically change the password for each component database user to improve the system O&M security.

Impact on the System

The services need to be restarted for the new password to take effect. Services are unavailable during the restart.

Procedure

  1. On MRS Manager, click Service and click the name of the database user service to be modified.
  2. Determine the component database user whose password is to be changed.

    • To change the password for the DBService database user, go to Step 3.
    • To change the password for the Hive, Hue or Loader database user, you must stop the service first, and go to Step 3.

    Click Stop Service to stop the service.

  3. Choose More > Change Password.
  4. In the displayed window, enter the old and new passwords as prompted.

    The password complexity requirements are as follows:

    • The password for a DBService database user must contain 16 to 32 characters; the password for a Hive, Hue or Loader database user must contain 8 to 32 characters.
    • The password must contain at least three types of the following: lowercase letters, uppercase letters, digits, 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 last 20 historical passwords.

  5. Click OK. The system automatically restarts the service. After Operation succeeded is displayed, click Finish.