YugabyteDB is a PostgreSQL-compatible, high-performance, cloud-native, distributed SQL database. It combines the benefits of traditional relational databases with the scalability of NoSQL systems, making it suitable for applications that require both transactional consistency and the ability to handle large amounts of data. It is best suited for cloud-native OLTP (that is, real-time, business-critical) applications that need absolute data correctness and require at least one of the following: scalability, high tolerance to failures, or globally-distributed deployments.

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• Powerful RDBMS capabilities Yugabyte SQL (YSQL for short) reuses the PostgreSQL query layer (similar to Amazon Aurora PostgreSQL), thereby supporting most of its features (datatypes, queries, expressions, operators and functions, stored procedures, triggers, extensions, and so on).

• Distributed transactions The transaction design is based on the Google Spanner architecture. Strong consistency of writes is achieved by using Raft consensus for replication and cluster-wide distributed ACID transactions using hybrid logical clocks. Snapshot, serializable and read committed isolation levels are supported. Reads (queries) have strong consistency by default, but can be tuned dynamically to read from followers and read replicas.

• Continuous availability YugabyteDB is extremely resilient to common outages with native failover and repair. YugabyteDB can be configured to tolerate disk, rack, node, zone, region, and cloud failures automatically. For a typical deployment where a YugabyteDB cluster is deployed in one region across multiple zones on a public cloud, the RPO is 0 (meaning no data is lost on failure) and the RTO is 3 seconds (meaning the data being served by the failed node is available in 3 seconds).

• Horizontal scalability Scaling a YugabyteDB cluster to achieve more IOPS or data storage is as simple as adding nodes to the cluster.

• Geo-distributed, multi-cloud YugabyteDB can be deployed in public clouds and natively inside Kubernetes. It supports deployments that span three or more fault domains, such as multi-zone, multi-rack, multi-region, and multi-cloud deployments. It also supports xCluster asynchronous replication with unidirectional master-slave and bidirectional multi-master configurations in two-region deployments. Read replicas are also a supported to serve (stale) data with low latencies.

• Multi API design The YugabyteDB query layer is built to be extensible. Currently, YugabyteDB supports two distributed SQL APIs: Yugabyte SQL (YSQL), a fully relational API that re-uses the PostgreSQL query layer, and Yugabyte Cloud QL (YCQL), a semi-relational SQL-like API with documents/indexing support with Apache Cassandra QL roots.

• 100% open source YugabyteDB is fully open-source under the Apache 2.0 license. The open-source version has powerful enterprise features such as distributed backups, encryption of data at rest, in-flight TLS encryption, change data capture, read replicas, and more.

YugabyteDB was created with several key design goals in mind, aiming to address the challenges faced by modern, cloud-native applications while maintaining the familiarity and power of traditional relational databases. Read more about these in our Design goals.

• Quick Start
• Try running a real-world demo application:
  • Microservices-oriented e-commerce app
  • Streaming IoT app with Kafka and Spark Streaming

Can't find what you're looking for? Have a question? Post your questions or comments on our Community Slack or Forum.

YugabyteDB supports many languages and client drivers, including Java, Go, NodeJS, Python, and more. For a complete list, including examples, see Drivers and ORMs.

The following is a list of some of the key features being worked on for upcoming releases.

Refer to roadmap tracker for the list of all items in the current roadmap.

v2.23 is the current Preview release. This includes features under active development and is recommended for development and testing only. For the full list of features and improvements in this release, see Release notes - v2.23. Here are some of the prominent features.

Quickly create independent copies of your database for data recovery, development, and testing.

Use pg_cron to schedule YSQL commands using familiar cron syntax, including jobs on intervals as fine as seconds.

Simplified management of YSQL transactional xCluster replication by operating at the database level instead of the table level.

Improvements to backward scan performance now allows such queries to be 10X faster out of the box!

v2024.2 is the current stable release. Stable releases undergo rigorous testing for a longer period of time and are ready for production use. For the full list of features and improvements in this release, see Release notes - v2024.2. Here are some of the prominent features.

The Yugabyte Kubernetes Operator is a powerful tool designed to automate deploying, scaling, and managing YugabyteDB clusters in Kubernetes environments. It streamlines database operations, reducing manual effort for developers and operators. For more information, refer to the YugabyteDB Kubernetes Operator GitHub project.

Get real-time and historical views of system activity by sampling session activity in the database. Use this feature to analyze and troubleshoot performance issues.

Use the pg_partman extension to create and manage both time- and serial-based (aka range-based) table partition sets. pg_partman is often used in combination with pg_cron for data lifecycle management, and specifically for managing data aging, retention, and expiration.

Starting this release, you can create colocated tables with tablespaces. With this enhancement, you can now take advantage of colocated tables for geo-distributed use cases, eliminating the need for trade-offs between distributing data across specific regions.

Review detailed architecture in our Docs.

• You can ask questions, find answers, and help others on our Community Slack, Forum, Stack Overflow, as well as Twitter @Yugabyte.

• Use GitHub issues to report issues or request new features.

• To troubleshoot YugabyteDB and cluster/node-level issues, refer to Troubleshooting documentation.

As an open-source project with a strong focus on the user community, we welcome contributions as GitHub pull requests. See our Contributor Guides to get going. Discussions and RFCs for features happen on the design discussions section of our Forum.

Source code in this repository is variously licensed under the Apache License 2.0 and the Polyform Free Trial License 1.0.0. A copy of each license can be found in the licenses directory.

The build produces two sets of binaries:

• The entire database with all its features (including the enterprise ones) is licensed under the Apache License 2.0
• The binaries that contain -managed in the artifact and help run a managed service are licensed under the Polyform Free Trial License 1.0.0.

By default, the build options generate only the Apache License 2.0 binaries.

• To see our updates, go to the Distributed SQL Blog.
• For in-depth design and architecture details, see our design specs.
• Tech Talks and Videos.
• See how YugabyteDB compares with other databases.