Heron Basics

Huijun Wu and Maosong Fu
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Huijun Wu: Twitter (United States)
Maosong Fu: Twitter (United States)

Chapter Chapter 2 in Heron Streaming, 2021, pp 15-31 from Springer

Abstract: 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.

Date: 2021
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DOI: 10.1007/978-3-030-60094-5_2

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