Question

I have a Rails 3 app.
Using the default logging config, when I issue a command like

logger.warn "some message"

Logger message appears in console and in logs.

Now I add one line to production.rb

config.logger = Logger.new(Rails.root.join("log","biteme.log"))

Logger message does not appear in console, only the logs.
Then I change it to this:

config.logger = Logger.new(config.paths.log.first)

And now message appears in console and in logs. There is some knowledge here that I am missing, because it does not make sense why the first config omits log message going to console. Any ideas?

Answer 1

Rails actually now uses ActiveSupport::BufferedLogger instead of ruby’s standard Logger class.

Try making your custom logger of that class and see if it works:

config.logger = ActiveSupport::BufferedLogger.new(Rails.root.join("log","biteme.log"))