NFS-problems I didn’t expect at all

Stories from the engine room: I have a big configuration file which is part of a mail-setup and it is read on each mail delivery (MTA is exim and it is the file that contains all the domains the servers are responsible for). It lives in NFS and several servers use it. Two days ago I migrated that part of the NFS to a new NFS-setup that works differently than the old one. And because it is already…