This repo shows a reproduction of an issue we have when trying to have the following three gems working together:
- sidekiq
- prometheus_exporter
- ddtrace (datadog's sdk)
First commit is a fresh rails new install
Second commit is the minimal changes needed to show this issue. Specifically, it has the additions of the three gems, and two initializer files:
- prometheus.rb for setting the middleware (as instructed by the gem's installation guide)
- sidekiq.rb for setting up prometheus specifically for sidekiq stuff (as instructed by the prometheus gem docs for sidekiq)
To run this repo and see sidekiq fails with stack level too deep:
bundle install- make sure you have a redis running locally
- in tab 1 run
bundle exec prometheus_exporter -v --bind 0.0.0.0 -p 9394to run a server that the promethus exporter sends stuff to - in tab 2 run
bundle exec sidekiq
If you comment out the contents of config/initializers/promethus.rb sidekiq manages to run fine.