YDB¶

YDB is a versatile open source Distributed SQL Database that combines high availability and scalability with strong consistency and ACID transactions. It accommodates transactional (OLTP), analytical (OLAP), and streaming workloads simultaneously.

Features¶

True elastic scalability¶

Add or remove nodes on the fly to easily scale up and down as needed. YDB has separate compute and storage layers, which allows to independently add disk capacity or CPU resources depending on what is scarce under the current workload.

Fault-tolerance¶

YDB is designed to work in three availability zones, ensuring availability even if the whole availability zone goes offline. It recovers automatically after a disk, server, or data center failure with minimum latency disruptions for applications.

User-friendliness¶

Working with a YDB cluster feels like working with a limitless single-node DBMS thanks to strong consistency, ACID transactions, high-performance queries, fast data ingestion with a familiar SQL dialect and JSON API support.

Versatility¶

With support for various kinds of workloads, YDB alone can replace multiple data storage and processing systems or the whole enterprise data ecosystem in a given company.

Open Source¶

YDB source code is published under the Apache 2.0 license, one of the most permissive true OSS licenses, so there’s no risk of cloud or vendor lock-in.

Quickstart¶

Start an instance with 1-Click, or optionally using your cloud provider’s web/console
Have just a little patience: it does take a couple of minutes for all the background services to start up in your instance. If you get connection refused or site error messages - just wait a moment
SSH into your instance and then connect to the ydbd service:
```
$ ydb
```
Type your instance id as the password when prompted.