ScyllaDB

About ScyllaDB

A NoSQL database compatible with Apache Cassandra but built in C++ for significantly higher throughput and lower latency. ScyllaDB is designed for data-intensive applications requiring consistent single-digit millisecond performance at scale.

Key Features

• 1Cassandra-compatible NoSQL database written in C++ for 10x lower latency
• 2Shard-per-core architecture eliminates cross-core synchronization overhead
• 3Drop-in Cassandra replacement — uses the same CQL and drivers
• 4Compaction strategies optimized for write-heavy workloads
• 5ScyllaDB Cloud for fully managed deployment on AWS, GCP, and Azure

How Python Data Engineers Use ScyllaDB

Python data engineers use ScyllaDB as a Cassandra replacement when latency is critical — the `cassandra-driver` library works unchanged since ScyllaDB is wire-compatible. Engineers migrating from Cassandra to ScyllaDB typically see P99 write latency drop from milliseconds to microseconds without any Python code changes.