Database / RocksDB Basics Interview Questions
What are Column Families in RocksDB?
Column Families let a single RocksDB database instance maintain multiple, independently configured, logically separate key spaces within the same database.
- Each column family can have its own compaction style, comparator, and other tuning options
- All column families in a database share the same underlying write-ahead log, keeping writes across them consistent
- Commonly used to store logically distinct kinds of data, like an index versus the actual records, within a single database instance
This feature is what lets an application avoid running multiple separate RocksDB instances just to keep different categories of data configured and organized differently.
What do Column Families let a single database instance maintain?
Do all column families in a database share the same write-ahead log?
More Related questions...
