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Mastering Elixir

You're reading from Mastering Elixir Build and scale concurrent, distributed, and fault-tolerant applications

Product type Paperback

Published in Jul 2018

Publisher Packt

ISBN-13 9781788472678

Length 574 pages

Edition 1st Edition

Languages

Elixir

Tools

Phoenix

Concepts

Programming Language

Authors (2):

Albuquerque

Caixinha

View More author details

Table of Contents (18) Chapters

Title Page

Dedication

Packt Upsell

Contributors

Preface

1. Preparing for the Journey Ahead FREE CHAPTER

2. Innards of an Elixir Project

3. Processes – The Bedrock of Concurrency and Fault Tolerance

4. Powered by Erlang/OTP

5. Demand-Driven Processing

6. Metaprogramming – Code That Writes Itself

7. Persisting Data Using Ecto

8. Phoenix – A Flying Web Framework

9. Finding Zen through Testing

10. Deploying to the Cloud

11. Keeping an Eye on Your Processes

1. Other Books You May Enjoy

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Index

Chapter 11. Keeping an Eye on Your Processes

With our application running on the cloud, we should have constant visibility at any given moment about what's happening. To accomplish this, we'll configure two different mechanisms to obtain information about the running ElixirDrip instances:

A Prometheus server constantly collecting metrics about the running application and exposing them through a Grafana dashboard
A way to run the Erlang observer tool while connected to the running Erlang nodes, in order to analyze the Erlang VM's overall status and the existing running processes
Two ways to tap into what's happening with our production system: Profiling and tracing functions from our application

Let's start by understanding how Prometheus works and how it is a good fit for the established ElixirDrip architecture.

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Authors (2)

Albuquerque

Albuquerque

Andr Albuquerque is a software engineer at Onfido, after working in the banking industry for seven years. He has a master's degree from Instituto Superior Tcnico in distributed systems and software engineering, and, during his banking detour, he obtained a master's degree in economics. He is currently developing Onfido's microservices using Elixir and Ruby, learning every day about how applications can score and scale if we apply the correct tools and sound coding practices from the get-go. In his time off, he loves to build his own keyboards, play basketball, and spend time with his wife and son.

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Caixinha

Caixinha

Daniel Caixinha is a software engineer at Onfido, where he is using Elixir to build resilient systems that can also handle the high growth of the business. After graduating from Instituto Superior Tcnico, he joined the startup world, mainly using Ruby, but also got the chance to play around with Elixir. Upon joining Onfido, he got the chance to take Elixir more seriously, which made him fall in love with functional programming in general, and Elixir in particular. Besides building Elixir applications, he is fostering the use of Elixir, being also a member of the Lisbon Elixir meetup.

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