Duplicate Log Message (ARCH6162)

Key ruby.logging.duplicate-log-message · Severity info · Category logging

When identical log messages repeat within the same class or file, log lines become ambiguous about their source. This complicates troubleshooting.

Incorrect

def update(user)
  Rails.logger.info("Validation failed")
  return unless user.valid?
  Rails.logger.info("Validation failed")
end

Correct

def update(user)
  Rails.logger.info("Pre-validation failed", user_id: user.id)
  return unless user.valid?
  Rails.logger.info("Save validation failed", user_id: user.id)
end

Fix

Make each log message distinct and add fields that identify the context.