Unified Compaction Strategy in Cassandra 5 - CEP-26

Explore the new unified compaction strategy coming in Cassandra 5 through this 39-minute conference talk. Dive deep into the key features and rationale behind this innovative approach that aims to provide a common solution for various workloads. Learn how the strategy defines an abstraction covering leveled, tiered, and hybrid compaction schemes, employs flexible SSTable sharding, and prioritizes compaction based on overlap. Discover how it matches or exceeds size-tiered compaction strategy performance while addressing space overhead and SSTable size issues. Understand its advantages over leveled compaction strategy, its effectiveness in handling time-series data, and potential for time-driven compaction decisions. Gain insights from examples of achievements with this new strategy, presented by long-term Cassandra committer Branimir Lambov, who specializes in local data storage and retrieval.