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ScyllaDB Enterprise 2022

Our latest enterprise release, ScyllaDB Enterprise 2022.1 enhances support for new modern hardware, provides an abundance of new features, and delivers valuable manageability and performance improvements at scale.

Now in ScyllaDB Enterprise 2022

AWS EC2 I4i Instances

ScyllaDB now supports AWS EC2 I4i series instances. Capitalizing on 3rd generation Intel Xeon “Ice Lake” processors, the AWS Nitro System hypervisor, and low-latency Nitro NVMe SSDs, ScyllaDB can achieve more than twice the throughput and lower latencies with I4i servers versus comparable i3 servers.

Arm-based Systems

ScyllaDB Enterprise also supports systems with Arm-based processors, including the new AWS Im4gn and Is4gen storage-optimized instances powered by Graviton2 processors. Now compiled to run on any AArch64 architecture, you can even run ScyllaDB in a Docker container on an Arm-based M1-powered Macintosh for next-gen application development.

I/O Scheduler

Integrated via a Seastar update, a new I/O scheduler seeks to find what is known as the effective dispatch rate — the fastest rate at which the system can process data without running into internal queuing jams to keep latency low.

Improved Reverse Queries

Reverse queries are SELECT statements that use reverse order from the table schema to accelerate queries for large partitions when advantageous. Whereas rows in a partition are sorted in ascending order by default, a reverse query would sort rows with the newest row first in descending order

Repair-based Node Operations

The same data transfer logic used for repair, a background process to sync data between nodes, is now used for topology changes. Node operations can restart from points where stopped without re-sending synced data, a significant time-saver when adding or removing large nodes. New off-strategy compaction can also be utilized to optimize performance.

Virtual Tables for Config and Nodetool Info

More lightweight than sstables, virtual tables are not persisted and generated on-the-fly. A new system.config virtual table allows querying and updating config parameters over CQL. Nodetool command info can also be queried including snapshots, protocol servers, and runtime info. Virtual tables can also be accessed remotely, including for ScyllaDB Cloud users.

Alternator, Our DynamoDB-compatible API

Enabling migration to ScyllaDB with potentially no application code changes, Alternator has been updated with valuable new support for:

  • Cross-Origin Resource Sharing (CORS)
  • Nested attribute paths
  • Attribute paths in ConditionExpression, FilterExpression, and ProjectionExpression

SSTable Index Caching

Indexes (not just data from SSTable rows) can now be cached in memory, between readers, populated on access, and evicted on memory pressure. Disks no longer need to be touched when walking an index – reducing IO and decreasing latency.

Timeout Operations Syntax

Timeouts can now be set for individual queries versus applying to the entire system through a new “USING TIMEOUT” syntax. A particularly useful feature for queries known to take considerable time, the new timeout syntax can also be used for updates (INSERT, UPDATE, DELETE).

Granular Timeout Controls

Timeouts also have more granular control to meet latency requirements and free up server resources. By using Service Level Properties for example to associate attributes to rules and users, timeouts can be based on service level and workload types.

Cloud Formation

A new variable VpcCidrIp allows you to set CIDR IP range for VPC. Previously, the range was hard coded to Plus the Cloud Formation template was reordered for better readability.


Guardrails are a collection of reservations that make it harder to use non-recommended options in production, such as:

  • Preventing use of SimpleReplicationStrategy.
  • Warn or prevent use of DateTieredCompactionStrategy (versus TimeWindowCompactionStrategy).
  • Disabling Thrift, a legacy interface, by default
  • Ensuring all nodes use the same snitch mode

ScyllaDB administrators can use default settings or customize guardrails as needed.

Check out the latest ScyllaDB Manager and ScyllaDB Monitoring Stack for new features such as the new Advisor Section and more.

Built on the Foundations of ScyllaDB Enterprise 2021

After more than 6,000 commits originating from five open source releases, ScyllaDB Enterprise 2022 has many additional features and enhancements since ScyllaDB Enterprise 2021, including:

  • LDAP Authentication and Authorization
  • Change Data Capture (CDC)
  • Space Amplification Goal (SAG) for ICS
  • Remove the Seed Concept in Gossip
  • Binary Search in SSTable Promoted Index
  • Alternator, Our DynamoDB-Compatible API
  • GCP Images
  • And much more


ScyllaDB Enterprise builds on the proven features and capabilities of ScyllaDB Open Source, while also bringing with a set of unique enterprise-only features.

Get more details on the latest release of our highly performant ScyllaDB Enterprise database.
Read our release notes for full details on the features and capabilities in ScyllaDB Enterprise 2022.1
Implementing a New IO Scheduler Algorithm for Mixed Read/Write Workloads
The latest evolution of our monstrously fast and scalable NoSQL database.

Learn how to configure ScyllaDB to replace or extend Amazon DynamoDB.

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