Preventing inadvertent deletion of directories
You can prevent inadvertent deletion of important data from your HDFS cluster by marking specific directories as protected. Marking a directory as protected prevents its recursive deletion. However, this does not protect against graceful deletion of files under the directory. You can delete the files by moving them to trash.
- Go to the HDFS service.
- Click the Configuration tab.
Set the Cluster-wide Advanced Configuration Snippet (Safety Valve)
for core-site.xml property as specified:
- Value: Specify a comma-separated list of the
directories that you want to mark as protected; for
/data, and so on.
- Enter a Reason for Change, and then click Save Changes to save the property changes.
- Restart the cluster.