• MapReduce Service

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  4. MRS Manager Operation Guide
  5. Object Management
  6. Canceling Isolation of a Host

Canceling Isolation of a Host


After a host fault is rectified, users must cancel the isolation of the host so that the host can be used properly.

Users can cancel the isolation of a host on MRS Manager.


  • The host status is Isolated.
  • The host fault has been rectified.


  1. On MRS Manager, click Host.
  2. Select the checkbox of the host that you want to cancel its isolation.
  3. Choose More > Cancel Host Isolation.
  4. In Cancel Host Isolation, click OK.

    When Operation succeeded is displayed, click Finish. Host isolation is canceled successfully, and the value of Operational Status becomes Normal.

  5. Click the name of the host for which isolation has been canceled. Status of the host is displayed. Click Start All Roles.