With HDP 1.3 and HDP 2.0 Beta, we introduced the ability to create snapshots to protect important enterprise data sets from user or application errors.
HDFS Snapshots are read-only point-in-time copies of the file system. Snapshots can be taken on a subtree of the file system or the entire file system and are:
- Performant and Reliable: Snapshot creation is atomic and instantaneous, no matter the size or depth of the directory subtree
- Scalable: Snapshots do not create extra copies of blocks on the file system.