October 31, 2023

Challenges and Strategies in Executing Zero-Downtime Migrations in Elixir

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Source: youtube.com

The presentation from Tyler Young delves into the underappreciated complexity inherent in executing large-scale, zero-downtime data migrations. Using a real-world example from Felt, Young explored the transition of significant portions of their Elixir codebase along with numerous Ecto schemas within a Postgres database. The process spanned several months and was conducted without any downtime, a factor he notes is essential for maintaining a professional image and user confidence in the service. The talk highlighted the importance of feature flags in controlling the roll-out and testing of new features, code cleanliness and simplification before migration, as well as understanding migration challenges such as atomicity, the potential need for rollback, and continuous feature development during migration. Young's emphasis on safe, incremental migration steps, thorough production data testing, and a detailed reflection on the lessons learned provided valuable insights into the intricate nature of data migration and code management in an Elixir-powered environment.

Overview of Req HTTP Client Capabilities in Elixir

Req is an HTTP client for Elixir designed with the “batteries-included” approach. It automatically decompresses & decodes responses, follows redirects, retries on errors, and has replaceable batteries allowing developers to easily reuse or write new features.

Oct 30, 2023

Methods of State Management in Elixir and BEAM

Isaac Yonemoto presents 11 different ways to store state in the BEAM VM, discussing the dangers of shared state in distributed and concurrent systems. This talk is aimed at both beginners and experienced developers, providing examples and insights to help programmers avoid potential pitfalls.

Oct 27, 2023

Enhancing LiveView with JavaScript for Dynamic User Experiences

In this video, Chris Nelson discusses the benefits of using LiveView in Elixir development, along with complex Javascript integration methods. It addresses scenarios for integrating Javascript, maintaining LiveView productivity, and fostering a better developer experience. It discusses using Custom HTML Elements and two libraries, `LiveElements` and `LiveState`.

Oct 26, 2023