ScyllaDB

ScyllaDB is the world's fastest NoSQL column store database, which is written in C++. Itz fully compatible with Apache Cassandra at 10x throughput and jaw dropping low latency.

Scylla will work with existing Cassandra command line CQL clients. However, mixed clusters of Scylla and Cassandra nodes are not supported. A Scylla node cannot join a Cassandra cluster, and a Cassandra node cannot join a Scylla cluster.

To share the benchmark between Scylla and Cassandra, both throughput on a single multi core server is evaluated with the Hardward specification:
2x Xeon E5-2695v3: 2.3GHz base, 35M cache,
14 core -> 28 core with HT
64GB RAM
2x 400GB Intel NVMe P3700 SSD
Intel Ethernet CNA XL710-QDA1

In terms of software Scylla 0.8 & Cassandra 3.0, is enabled as TestBed.

In the attached image, average throughput for the test is presented as lines, latency as bars.

Scylla’s measured latency of less than 1 ms for the 99th percentile is significantly lower than Cassandra’s, while providing significantly higher throughput (the single client machine could not fully load the server).  The lack of garbage collection means that there are no externally imposed latency sources, so Scylla latency can be brought even lower.


Scylla’s order of magnitude improvement in performance opens a wide range of possibilities.  Instead of designing a complex data model to achieve adequate performance, use a straightforward data model, eliminate complexity, and finish your NoSQL project in less time with fewer bugs.