• MapReduce Service

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  2. MapReduce Service
  3. User Guide
  4. MRS Manager Operation Guide
  5. Object Management
  6. Synchronizing Role Instance Configuration

Synchronizing Role Instance Configuration


When the Configuration Status of a role instance is Expired or Failed, users can synchronize the configuration data of the role instance with the background configuration.

Impact on the System

After synchronizing a role instance configuration, you need to restart the role instance that had an expired configuration. The role instance is unavailable during the restart.


  1. On MRS Manager, click Service and choose a service name.
  2. Click the Instance tab.
  3. Click the target role instance in the role instance list.
  4. Click More in the upper pane, and select Synchronize Configuration from the drop-down list.
  5. In the dialog box that is displayed, select Restart services or instances whose configurations have expired, and click OK to restart a role instance.

    When Operation succeeded is displayedclick Finish. The service is started successfully.