nextcloud-docs/crate/content.md

%%LOGO%%

What Is CrateDB?

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

Features of CrateDB:

• Standard SQL plus dynamic schemas, queryable objects, geospatial features, time series data, first-class BLOB support, and realtime full-text search.
• 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 offers the scalability and flexibility typically associated with a NoSQL database and is designed to run on inexpensive commodity servers and can be deployed and run across 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. And this data can be queried, ad-hoc, in parallel across the whole cluster in real time.

How to Use This Image

Spin up this Docker image like so:

$ docker run -p 4200:4200 %%IMAGE%%

Once you're up and running, head on over to the introductory docs.

See also:

• Getting Started With CrateDB on Docker

Issues

Memory Accounting

The combinations of Linux kernel version 3.x and Docker >= 1.12 could lead to a major problem with memory accounting causing the kernel to kill the CrateDB process in the container. This problems occurs because of a slab shrinker issue that is fixed in kernel versions >= 4.0.

Others

For issue specific to the CrateDB Docker image, report issues via the docker-crate GitHub issue tracker

For issues with CrateDB itself, report issues via the crate GitHub issue tracker

Contributing

This image is primarily maintained by Crate.io, but we welcome community contributions!

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