Rails Logs: A Blessing in Development, a Headache in Production

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Rails Logs: A Blessing in Development, a Headache in Production

March 31, 2026

The Love Affair

You know the feeling. Local machine, Rails server running, something breaks. You glance at the terminal and there it is: a beautiful stack trace with every detail you need.


Started GET "/articles/999" for 127.0.0.1 at 2026-03-31 10:23:45 -0300
Processing by ArticlesController#show as HTML
  Article Load (0.8ms) SELECT * FROM articles WHERE id = 999 LIMIT 1
Completed 404 Not Found in 15ms

ActiveRecord::RecordNotFound (Couldn't find Article with 'id'=999):
app/controllers/articles_controller.rb:7:in `show'

HTTP method, path, controller, action, SQL query, error, line of code. Everything. In development, logs are a blessing.

Then you need to find what happened in production three weeks ago. That’s when the blessing becomes a curse.

👉 Read the full article.

Rails Logs: A Blessing in Development, a Headache in Production – Linking Ruby knowledge from the most remote places in the world.

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