Hi, I have a small database on my Windows XP, I rarely use it. Even so, the log file show says this: [2005-07-02 02:02:09] LOG: received fast shutdown request [2005-07-02 02:02:09] LOG: checkpoints are occurring too frequently (0 seconds apart) [2005-07-02 02:02:09] HINT: Consider increasing the configuration parameter "checkpoint_segments". [2005-07-02 02:02:09] LOG: shutting down [2005-07-02 02:02:10] LOG: database system is shut down [2005-07-02 02:02:13] LOG: logger shutting down My checkpoint_segments setting is default, 3, and there are 2 wal log files. Why does it say, that "too frequenty"? In fact what are checkpoints? These files? I couldn't understand it exactly from the docs. Thanks, Otto ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org