Apache Heron (Incubating) is a realtime, distributed, fault-tolerant stream processing engine from Twitter

Clone this repo:
  1. f11ebc3 Added CLI submit config toggle for verbose GC logging (#3663) by Nicholas Nezis · 13 minutes ago master
  2. fdf3430 Add sum/max/min reducers in Scala (#3133) by Ning Wang · 21 hours ago
  3. 1a0d198 Updated K8s Scheduler to set Resource Limits and Requests (#3664) by Nicholas Nezis · 3 days ago
  4. 0f0ba18 explicit unreleased code (#3658) by Josh Fischer · 9 days ago
  5. 6edbee7 Allow localhost graceful shutdown (#3650) by choi se · 9 days ago

Build Status


Heron is realtime analytics platform developed by Twitter. It has a wide array of architectural improvements over it's predecessor.

Heron in Apache Incubation


https://heron.incubator.apache.org/ Confluence: https://cwiki.apache.org/confluence/display/HERON

Heron Requirements:

  • Java 11
  • Python 3.6
  • Bazel 3.7.2


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Meetup Group

Bay Area Heron Meetup, We meet on Third Monday of Every Month in Palo Alto.

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Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0