Side by side
Apache Heron vs kdb+
Both stand on streaming analytics software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxSelf-hosted
Heron may suit teams that need its specific stream-processing model, Storm compatibility and self-hosted scheduler choices. The project’s retirement and read-only archive are important reasons to look elsewhere if ongoing project activity is essential.
Visit Apache Heron
Free plan APILinuxMac+2
kdb+ combines time-series storage, analytics, and multiple ingestion paths for real-time and historical data. The free personal edition has strict use and connectivity limits; commercial use requires a license.
Visit kdb+The facts
| Apache Heron | kdb+ | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Self-hosted | API, Linux, Mac, Self-hosted, Windows |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 2 |
| Maker | Not published | kdb+ |
| Website | heron.apache.org | kx.com |
| On streaming analytics software | #15 of 25 | #11 of 25 |
Apache Heron: what it does well
- Apache Storm ecosystem and topology API compatibility
- Supports backpressure and stateful, effectively-once processing
- Java, C++ and Python implementation
- Scheduler choices include Kubernetes, DC/OS, Nomad and SLURM
- Apache License 2.0 open-source software
What to know first
- The project retired on January 18, 2023
- The GitHub repository is archived and read-only
- Deployment is listed for Linux and self-hosting
kdb+: what it does well
- Supports q and q-SQL queries.
- Lists ingestion through Kafka, TCP/IP, and batch mode.
- KX documents cloud deployments on three providers.
- Free interactive on-demand training is available.
What to know first
- Personal edition is non-commercial and local only.
- Personal use requires an always-on internet connection.
- Commercial licensing requires an agreement and valid key.
- Commercial pricing is available on request.
Alternatives to Apache Heron Alternatives to kdb+ The whole list