As an administrator, you can enable or disable snapshot creation on a directory.
These operations require the superuser privilege. As a user; you can create, delete, or
rename snapshots on a directory that has snapshot creation enabled. These operations require
either the superuser privilege or the owner privilege on the directory.
User operations
The following table lists
the user operations that you can perform on snapshots:
| Operation |
Command |
| Create snapshots |
hdfs dfs -createSnapshot <path>
[<snapshotName>] |
| Delete snapshots |
hdfs dfs -deleteSnapshot <path>
<snapshotName> |
| Rename snapshots |
hdfs dfs -renameSnapshot <path> <oldName>
<newName> |
| List directories on which snapshot creation is enabled
(snapshottable directories) |
hdfs lsSnapshottableDir |
| List snapshots on a snapshottable directory with their IDs and
timestamp of creation |
hdfs lsSnapshot |
| List differences between contents of snapshots |
hdfs snapshotDiff <path> <fromSnapshot>
<toSnapshot> |
For more information about these commands, see https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsSnapshots.html#User_Operations.