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Tech riderRev. 20 Sept 2026

Hadron

Ch 156.2of 23 Event Streaming Platforms
  1. 1Runs onself-hosted
  2. 2CostsNot stated by the maker
  3. 3Deployment modelself-hosted
  4. 4Stream processingYes
  5. 5Supported client languagesRust
4 lines stated Written from the maker's own pages: hadron-project.github.io
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The Hadron homepage

Overview

Hadron is ranked #15 of 23 in event streaming platforms on Specifiction. It runs on Self-hosted.

Compared on event streaming platforms

Deployment model
self-hostedhadron-project.github.io
Stream processing
Yeshadron-project.github.io
Supported client languages
Rusthadron-project.github.io

Facts

Product
Hadron is a distributed data storage system for ingesting events and working with them in multi-stage structured workflows.hadron-project.github.io · 4 Oct 2026
Streams
Streams are append-only, immutable data logs with absolute ordering per partition and horizontal scaling.hadron-project.github.io · 4 Oct 2026
Pipelines
Pipelines orchestrate multi-stage workflows over data in Streams and can start when an event type matches a configured trigger.hadron-project.github.io · 4 Oct 2026
Messaging and RPC
Exchanges provide ephemeral messaging, while Endpoints provide general-purpose RPC handlers.hadron-project.github.io · 4 Oct 2026
Event format
Hadron uses the CloudEvents 1.0 model for Streams, Pipeline inputs and outputs, and ephemeral messages.hadron-project.github.io · 4 Oct 2026
Kubernetes
Hadron is designed to run in Kubernetes and is installed using Helm and Kubernetes configuration resources.hadron-project.github.io · 4 Oct 2026
Scaling and availability
The documentation says Streams can scale horizontally and remain available when at least one partition is running.hadron-project.github.io · 4 Oct 2026
Retention
Stream data retention supports a configurable time policy that defaults to seven days, or an indefinite retain policy.hadron-project.github.io · 4 Oct 2026
Clients
Producers and Consumers can be written in any language, and the project maintains a shared Rust client and a CLI.hadron-project.github.io · 4 Oct 2026
Monitoring
Hadron components expose Prometheus metrics over HTTP, with documented integration options including Prometheus scraping and the OTEL collector.hadron-project.github.io · 4 Oct 2026
Access control
Hadron authenticates with Tokens that produce JWTs signed with the Operator's private RSA key, with permissions configurable by resource.hadron-project.github.io · 4 Oct 2026
TLS setup
The quick start says cert-manager is optional and simplifies TLS certificate setup for Hadron's validating webhooks.hadron-project.github.io · 4 Oct 2026
External access
The CLI documentation says access from outside the Kubernetes cluster is in progress.hadron-project.github.io · 4 Oct 2026
Hosted service
The quick start describes Hadron Cloud as under construction and the hosted, fully managed option.hadron-project.github.io · 4 Oct 2026

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Where it ranks on Specifiction

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Sources