Scenario
This feature supports the rollback of a specified configuration file to a specific historical version.
Procedure
1. Log in to the YI-MapReduce management console.
2. Click on My Cluster and choose a running cluster to enter the cluster information page.
3. Click the YI-MapReduce Manager tab, and then select Go to YI-MapReduce Manager.
4. Upon entering the YI-MapReduce Manager, click Cluster Service on the menu to go to the cluster service list.
5. Choose the specific cluster service. Click on the cluster service name to enter the cluster service details page.
6. Click the Configuration Management tab.
7. Click on the configuration group, and then on the name of the configuration file. Details of this configuration will be displayed on the right side of the page.
8. Click on More > History Comparison, and a history comparison dialog box will appear. As shown in the figure:
9. Click the Restore to Version X button. A confirmation dialog box will appear. As shown in the figure:
10. Click OK.
11. Click the Close button to close the configuration comparison dialog box.
12. Check the configuration file. The content of the configuration file should now match the restored version.
13. Click Sync to synchronize the configuration file.