问题
If CF server is restarted, are all the existing Session and Client variables lost?
回答1:
Client variables generally live in a database or registry, and therefore they do persist after server restarts (see here).
Session variables live in RAM and therefore do not persist through a server restart (see here).
来源：https://stackoverflow.com/questions/3233702/does-restarting-cf-server-log-everyone-out