Database / RocksDB Basics Interview Questions
What is a Transaction in RocksDB?
RocksDB offers transaction support that lets multiple operations be grouped so they either all succeed together or none of them take effect, along with mechanisms to handle conflicting concurrent writes.
- Supports both optimistic and pessimistic concurrency control, letting an application choose the conflict-handling strategy that fits its workload
- Optimistic transactions check for conflicts at commit time, assuming conflicts are rare
- Pessimistic transactions instead lock keys upfront, preventing conflicting writes from happening concurrently in the first place
This transactional layer is what lets applications built on RocksDB implement multi-key atomic updates, rather than being limited to single-key operations with no consistency guarantees across them.
What do RocksDB transactions let an application group together?
When do optimistic transactions check for conflicts?
More Related questions...
