The Real-Time Big Data Database

Scylla powers your applications with 1,000,000 IOPS at less than 1 millisecond latency

Scylla is a drop-in Apache Cassandra replacement that powers your applications with ultra-low latency and extreme throughput.

Leveraging the best from Apache Cassandra in high availability, fault tolerance, and its rich ecosystem, Scylla offers developers a dramatically higher-performing and resource effective NoSQL database to power modern and demanding applications.

What Can You Do with 1,000,000 IOPS?

Scylla unleashes your existing infrastructure's performance so you can...

Handle 10x traffic spikes on Black Friday

Eliminate cache deployments in front of databases

Get the most out of your data and run more queries

Model your data instead of using Apache Cassandra as K/V

Shrink your NoSQL clusters by a factor of 10

Win more bids with consistently low latency

Take it for a Spin. See the performance you can expect from Scylla. Our Test Drive demo runs a live stress test against the requirements you set.


What’s Under the Hood?

We’ve redesigned Apache Cassandra from scratch. Scylla leverages the power of C++ to unleash your infrastructure’s true potential for running high-throughput/low-latency workloads.


  • Multi-queue
  • Poll mode
  • User space
  • TCP/IP


  • Thread-per-core
  • Lock-free
  • Task scheduler
  • Reactor programming
  • C++14


  • NUMA friendly
  • Log structured allocator
  • Zero copy


  • DMA
  • Log structured
    merge tree
  • DBaware cache
  • Userspace I/O
  • Scheduler

What Can You Do with Scylla?

Scylla supports a wide variety of demanding use cases at massive scale.

Activity tracking and monitoring applications

Heavy read/write applications

Time-series applications

Real-time analytics

Product catalog and playlist management

Social application backend

Recommendation and personalization engine

Internet-of-things sensor data

Microservice-based pipeline backend

Highly-available storage embedded backend

Fraud detection and prevention

Messaging backend

Let’s do this

Getting started takes only a few minutes. Scylla has an installer for every major platform and is well documented. If you get stuck, we’re here to help.