This is a simple example demonstrating when Thin seems to be defaulting to 30 seconds and when it does not.

See the 30s timeout in action

Launch the app indirectly:

bundle exec ruby web.rb

In a separate shell, run:

curl http://localhost:4567

You should see:

curl: (52) Empty reply from server

Workaround:

Launch thin directly:

bundle exec rackup -I .

In a separate shell, run:

curl http://localhost:9292

You should see:

made it