Catch Of Control Flow Exception (ARCH6168)

Key ruby.logging.catch-signal-exception · Severity warning · Category logging

Catching runtime exceptions that should propagate, such as Interrupt or SignalException, breaks cancellation and graceful shutdown. The process becomes impossible to terminate.

Incorrect

def run
  loop { work }
rescue Exception => e
  Rails.logger.error("Error", exception: e)
  retry
end

Correct

def run
  loop { work }
rescue StandardError => e
  Rails.logger.error("Error", exception: e)
  retry
end

Fix

Rescue StandardError instead of Exception; let control-flow exceptions like Interrupt/SignalException propagate.