How to implement data versioning in HBase
In HBase, version control of data is achieved by storing multiple versions in each cell. Each cell can store multiple versions of data, with each version having a timestamp, and the newest version is considered the current version.
Data version control can be achieved in several ways, including:
- Limit the number of versions: You can control the number of versions stored by configuring the version limit of an HBase table. When the specified number of versions is exceeded, the oldest version will be removed.
- Establishing TTL (Time To Live): An expiration time can be set for each cell, and after this time elapses, the stored version will be deleted.
- Manual version control: You can manually control versions using HBase’s API, such as retrieving specific versions of data through get or scan operations.
By using the above methods, data version control can be achieved to ensure the consistency and integrity of the data.
