If run the server, the server will be run for several minutes and then the error will happen. Most of error will held if the server run query : INSERT, DELETE. For database server, i use Postgre 8.3.1 on ubuntu 8.10 server. For system servers, i use standard C++. I am going to make an MMORPG. So i implements many servers. 1 MainServer and some AreaServer. Thank you ... -- View this message in context: http://www.nabble.com/The-connection-closed-unexpectedly---C%2B%2B-and-Postgre-tp24302840p24303787.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general