How does HBase manage data versioning and timestamps?

5 months ago

2 minutes

In HBase, each cell can hold multiple versions of data, each with a timestamp. When writing data to HBase, you can specify a timestamp or let HBase generate one for you. When querying data, you can specify a time range to retrieve data versions within that time frame.

HBase uses a specified timestamp to determine which version of the data will be returned to the user. If no timestamp is specified, the latest version of the data will be returned. You can configure HBase to control how many versions of data are saved. By default, HBase saves all versions of data, but you can also configure it to only retain the latest few versions.

Timestamps can aid in achieving data version control and maintaining a history of data changes. Users can use timestamps to track the evolution of data over time. Additionally, timestamps can help resolve conflicts during concurrent writes and ensure data consistency.