ScyllaDB

High-performance NoSQL database — Cassandra- and DynamoDB-compatible, written in C++ for single-digit-ms latency.

Professional

Pricing Tier

Steep

Learning Curve

1–3 months for production cluster

Implementation

medium, large, enterprise

Best For

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✓ Use when

Apps migrating off Cassandra or DynamoDB to reduce cost and latency, or greenfield workloads needing millions of ops/sec.

✗ Avoid when

Small teams without distributed database ops experience — operating a NoSQL cluster at scale is non-trivial.

What is ScyllaDB?

ScyllaDB is a wide-column NoSQL database written in C++ using a shard-per-core architecture. It speaks both Cassandra (CQL) and DynamoDB (via Alternator) wire protocols, letting teams swap backends without app changes. Known for 10x throughput improvements over Cassandra with far less hardware. Used by Discord, Disney+, Samsung, and ZeroFox for hot-path workloads.

Key features

✓Shard-per-core C++ architecture

✓CQL and DynamoDB-compatible APIs

✓Workload prioritization

✓Incremental compaction

✓Raft-based consistency in newer versions

Integrations

KafkaSparkKubernetesPrometheus

💰 Real-world pricing

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