Master Apache Storm: Core Concepts, Real‑Time Word Count & Call Log Analytics
This tutorial introduces Apache Storm’s fundamental principles and development workflow, providing a PDF guide and source code for two practical examples—real‑time word‑count and call‑record aggregation—while covering its definition, use cases, relationship with Hadoop, core concepts, cluster architecture, and step‑by‑step usage.
Introduction
This tutorial introduces Apache Storm’s basic principles and development methods, including a PDF guide and source code for two examples.
Outline
What is Storm
Application scenarios
Relationship between Storm and Hadoop
How to use Storm
Example 1: Counting word occurrences
Core concepts
Cluster architecture
Example 2: Counting call records
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