Our Norway and North Cape cruise began in Rotterdam.
As our taxi dropped us off at the pier, we could see papers blowing in the wind. They turned out to be passenger lists with cabin assignments. A passenger gathered many of them and handed them to the HAL agent who was busy stapling bag tags on luggage and writing cabin numbers on tags for those who didn't print theirs at home. She seemed a bit overwhelmed.
After handing in our bags, we entered the terminal to register. Computers broke down and the process was delayed -- for 2-3 hours. HAL came around with water at first, then much later with cookies but lines formed quickly and there was grumbling about how fast the really good ones were taken. The computers started up and eventually we all got on board.