Presumably they're referring to some kind of periodic database maintenance: https://www.postgresql.org/docs/current/maintenance.html https://www.postgresql.org/

Presumably they're referring to some kind of periodic database maintenance: https://www.postgresql.org/docs/current/maintenance.html https://www.postgresql.org/docs/current/maintenance.html Alternatively they might be doing something weird involving periodically flushing the database from memory and onto disc. That wouldn't mean "crashing", but likely would mean the database wasn't usable as a database.