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Scylla Roadmap

Scylla has been Generally Available (GA) since March 2016 and now is in production for multiple users. In addition to the open source project, Scylla Enterprise offers an additional set of features and tools.

Scylla is a drop-in replacement for Apache Cassandra 2.2, with selected features from Apache Cassandra 3.x. In particular, the following interfaces are compatible with Apache Cassandra.

  • All Apache Cassandra Drivers
  • Protocols: CQL, Thrift, JMX
  • Tooling: cqlsh, nodetool, cassandra-stress, and all of Cassandra 2.2 tools
  • SSTable format

Read more about Scylla/Apache Cassandra compatibility.

Scylla 1.7.4 is the latest Scylla production release.

Scylla Open Source Road Map

ScyllaDB is an open source company that is committed to open innovation and transparency.

This page is a point-in-time snapshot of our current efforts and plans, however our plans are always responsive to customer input, market evolution, and development constraints.

Track progress through the open source Scylla project on GitHub including a public project issue tracker. You are welcome to add feature requests and vote for your favorite issue.

This Scylla open source project roadmap is intended to outline general product direction and should not be relied upon in making purchasing decisions. The content is for informational purposes only and may change. In general, we will follow Apache Cassandra upstream and adopt any feature that can serve our users.

We release a Scylla minor version each month, with both bug fixes and new features. Complex features will be flagged as experimental for one release, marking them as completed, but not thoroughly tested yet. The list below includes features visible to the users. At the same time, we put most of our effort into internal optimizations, performance improvements, and workload conditioning.

Scylla is moving fast! Keep an eye on the scylladb-users mailing list for updates.

Selected features plan:

  • Counters - experimental in Scylla 1.7 (available), production ready Scylla 2.0
  • Row Cache - Scylla 2.0
  • Native support for EC2 i3 instances - Scylla 2.0
  • DNS resolution for ip/seed - Scylla 2.0
  • Materialized View - Experimental Scylla 2.0, production ready Scylla 2.2
  • Hinted Handoff - experimental in Scylla 2.1
  • Time Window Compaction Strategy - Scylla 2.1
  • Secondary indexes - Scylla 2.2
  • Lightweight Transactions (LWT) - experimental in Scylla 2.3
  • Apache Cassandra 3.x storage format 2.x
  • Incremental Repair - Scylla 2.x

We have great plans for the second half of 2017 and beyond, including an improved disk format, different database enhancements and integration with analytics and search.

Want to hear more on our ideas for Scylla open source and Scylla Enterprise? Please contact us.

Beyond 2.0: Scylla in the future

Scylla’s longer-term future is divided the future into three categories:

  1. Core features. These are improvements to deepen the Scylla advantage: New storage format, additional columnar format, hook Seastar userspace TCP stack to Scylla, K/V optimizations, true multi-tenancy to guarantee SLA among tenants, DBaaS, management console, and more.
  2. Vertical enhancements. Spark and Scylla are a combination made in heaven. We will enhance the interface with MapReduce aggregations on the Scylla side and prevent expensive full-table-scans. Spark is one example; Presto, KairosDB, and JanusGraph are additional viable examples. Vertical enhancement isn’t just upwards but also downwards towards the hardware. A userspace filesystem and 3D-xpoint are on the horizon too.
  3. Horizontal growth. When you have an engine such as Seastar and clustering technology derived from Apache Cassandra, why settle for CQL? We’ve shown that Seastar can create blazing-fast httpd. Alibaba uses Seastar to rewrite Redis in a better way (called Parallel Redis – Pedis). There are more big data projects and we hope to get there one day. This is where you can chime in and extend Seastar for your use case.

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.

Apache®, Apache Cassandra®, are either registered trademarks or trademarks of the Apache Software Foundation in the United States and/or other countries. No endorsement by The Apache Software Foundation is implied by the use of these marks.