If a Core or Task node is faulty, the cluster status may become abnormal. In an MRS cluster, data can be stored on different Core nodes. Users can decommission the specified role instance on MRS Manager to stop the role instance from providing services. After fault rectification, users can recommission the role instance.
If the target service is restarted in another browser or window while the instance decommissioning operation is in progress, MRS Manager displays a message indicating that the decommissioning is suspended and Operating Status is Started. However, the instance decommissioning is actually complete in the background. You need to decommission the instance again to synchronize the status.