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Since 543e839, shard allocation
on previous versions is allowed if the previous version is on the

In order for other tests which expect a failure on allocation with
a previous version, the helper method to retrieve a previous version
must be changed to return a version before curren'ts MAJOR.MINOR.
On current master test are passing as no lower hotfix version exists.

Follow up of 543e839.


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CrateDB is a distributed SQL database that makes it simple to store and analyze massive amounts of machine data in real-time.

CrateDB offers the scalability and flexibility typically associated with a NoSQL database, is designed to run on inexpensive commodity servers and can be deployed and run on any sort of network - from personal computers to multi-region hybrid clouds.

The smallest CrateDB clusters can easily ingest tens of thousands of records per second. The data can be queried, ad-hoc, in parallel across the whole cluster in real time.


  • Standard SQL interface available via HTTP API and PostgreSQL wire protocol.
  • Dynamic schemas, queryable objects, geospatial features, time series data support, and realtime full-text search providing functionality for handling both relational and document oriented nested data structures.
  • Horizontally scalable, highly available and fault tolerant clusters that run very well in virtualized and containerised environments.
  • Extremely fast distributed query execution.
  • Auto-partitioning, auto-sharding, and auto-replication.
  • Self-healing and auto-rebalancing.


CrateDB provides an Admin UI:

Screenshots of the CrateDB admin UI

Try CrateDB

The fastest way to try CrateDB out is by running:

$ bash -c "$(curl -L"

Or spin up the official Docker image:

$ docker run --publish 4200:4200 --publish 5432:5432 crate -Cdiscovery.type=single-node

Visit the getting started page to see all the available download and install options.

Once you're up and running, head over to the introductory docs. In order to connect to CrateDB from applications, see our list of CrateDB clients and tools or use the CrateDB shell in order to invoke ad-hoc commands.

For running CrateDB on Kubernetes, the CrateDB Kubernetes Operator and its CrateDB Kubernetes Operator Documentation might be of interest.


This project is primarily maintained by, but we welcome community contributions!

See the developer docs and the contribution docs for more information.


Looking for more help?