¶ Apache Cassandra
Apache Cassandra is designed for horizontally scalable, multi-node deployments where availability and partition tolerance are primary requirements. With the latest version 5.0, Cassandra introduces significant improvements including Trie-based memtables, unified compaction strategy, and native vector search capabilities.
- Large-scale write-heavy workloads
- Multi-node clusters across racks or regions
- Applications that accept eventual consistency patterns
- AI/ML workloads requiring vector search capabilities
- Time-series and IoT data processing
- Peer-to-peer architecture without a single primary node
- Tunable consistency per query
- Replication and partitioning built into the core design
- Trie-based memtables and SSTables (5.0+) for improved write performance
- Unified Compaction Strategy (UCS) (5.0+) combining LCS and STCS benefits
- Native vector search (5.0+) with HNSW-based approximate nearest neighbor
- Storage-Attached Indexes (SAI) (5.0+) for efficient secondary indexing
- Dynamic Data Masking (DDM) (5.0+) for enhanced security
- Rich mathematical CQL functions (5.0+) for computations within queries
- Mature tooling (
nodetool, cqlsh) for operations
- Java 8+ (Java 17+ recommended for 5.0+)
- Latest GA Version: Apache Cassandra 5.0.6 (Released October 2025)
- Previous Stable: Apache Cassandra 4.1.10 (Maintained until 5.2.0 release)
- Older Stable: Apache Cassandra 4.0.19 (Maintained until 5.1.0 release)
- Active Apache project with regular maintenance releases
- Commonly used where linear scale-out and fault tolerance are required
- Version 5.0 introduces major storage engine improvements and AI/ML capabilities
- Version 4.1 remains stable for production environments requiring proven stability
¶ History and References