Gain insights into data processing and concurrency in Elixir. Explore GenServer, GenStage, Flow, and Broadway to enhance performance, set up pipelines, and handle increased workloads efficiently.

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Most engineers don’t think that concurrency is distinct from programming. Data processing includes transforming information in some way, like reporting, data aggregation, or analytics. On the other hand, concurrency involves significantly improving performance.

This course is designed to help you navigate the world of concurrency tools available in the Elixir ecosystem. You’ll explore popular modules and libraries like GenServer, GenStage, Flow, and Broadway. You’ll be able to ingest data, set up pipelines, and run concurrent processes with Elixir.

By the end of the course, you’ll have a wide range of new techniques to simplify your product, improve code performance, and make your application more resilient to increased workloads.

Concurrent Data Processing in Elixir

# Blueprint of our job processing system

We used the `Task` module in the previous chapter to start a new process when sending each email. We’ll adopt the same approach for our job-processing system. Rather than having a single `GenServer` that does all the work, we start a `GenServer` process for each job. This helps us leverage concurrency and improve performance.

We also don’t want to lose any features that we have introduced so far in this chapter. We want to be able to retry failed jobs and configure the process to suit our needs. Finally, we’ll learn a new type of supervisor to help us manage these processes and provide fault tolerance. This figure gives us a high-level overview of what we’re going to build:

Make a new mix project to explain building a job processing system.

Getting Started

Easy Concurrency with the Task Module

Long-Running Processes Using GenServer

Data Processing Pipelines with GenStage

Process Collections with Flow

Data Ingestion Pipelines with Broadway

Concluding the Course

The blueprint of our job-processing system

Blueprint of our job processing system