Puma stuck with message “Early termination of worker” on Rails 6 API only project at Elastic Beanstalk

Question

I have a Rails 6 api-only application which I am failed to run at AWS Elastic Beanstalk. After deployment of that application, puma stucks with message \"Early termination o

Answer 1

Met the same error. Turns out it is a different PATCH of puma.

I was using this stack from elastic beanstalk

Ruby 2.6 AL2 version 3.0.1
64bit Amazon Linux 2 v3.0.1 running Ruby 2.6
Ruby 2.6.6-p146
RubyGems 3.1.2
Puma 4.3.3
...

My project's Gemfile included puma this way.

gem 'puma', '~> 4.3.3'

My project was a boilerplate for new projects that were coming my way, so things were working fine for "old" projects until the newer patch version, puma 4.3.5 as of now, came out.

Solution is to fix the version of the gem in the Gemfile as such:

gem 'puma', '= 4.3.3'

Lesson learnt is to always match your environment with that of your deployment tool. Keep track of the latest solution stack versions here.