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Heron Basics

In: Heron Streaming

Author

Listed:
  • Huijun Wu

    (Twitter (United States))

  • Maosong Fu

    (Twitter (United States))

Abstract

Heron data model is based on the notion—topology. A topology is a directed acyclic graph consisting of spouts and bolts as vertices and streams as edges. Spouts ingest data into the topology, and bolts handle the data processing. A Heron job runs in a distributed cluster consisting of six shared components, including Scheduler, State manager, Uploader, CLI, Tracker, and UI. Besides the shared component, each topology runs in a bunch of containers consisting of four components, including topology master, stream manager, heron instance, and metrics manager. We will run the first Heron job in this chapter.

Suggested Citation

  • Huijun Wu & Maosong Fu, 2021. "Heron Basics," Springer Books, in: Heron Streaming, chapter 0, pages 15-31, Springer.
    • Handle: RePEc:spr:sprchp:978-3-030-60094-5_2
    DOI: 10.1007/978-3-030-60094-5_2
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