Hello! > If, however, you mean a crash of the server machine PostgreSQL is > runnning on, which is MUCH more likely and will have different > effects/behaviour, then Ray Stell's advice to bring the interface down > is probably pretty good. Sorry for a bit ambiguous usage of both "crash" and "fault" terms. By those words I meant crash of the server machine PostgreSQL is running on, not the PostgreSQL itself. Network outages between client and PostgreSQL are also kind of something I would like to simulate in any way. Though I don't think there are any differences between the crash of PosgreSQL itself and the crash of the machine PostgreSQL is running on from the client's point of view. Yet another way to simulate this terrible behaviour I've found is to stop PostgreSQL by "pg_ctl -m immediate" command. Thanks to all who has answered in this topic! It was very helpful to read it! -- Sergey Samokhin -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general