[Serusers] About MySQL wait_timeout

In SER configured to work with MySQL database i see after some period of inactivity (of SER to DB) that MySQL close socket connections of SER due to wait_timeout (or interactive_timeout) expiration. I like known if this is a "normal" operation or affect SER work. I need known what happens with this closed connections, if it are re-opened when SER need or not and if exist any workaround for this. ... from server mysql logs: 041021 10:53:27 Aborted connection 16 to db: 'ser' user: 'ser' host: `localhost' (Got timeout reading communication packets) ... from mysql documentation: interactive_timeout The number of seconds the server waits for activity on an interactive connection before closing it. An interactive client is defined as a client that uses the CLIENT_INTERACTIVE option to mysql_real_connect(). See also wait_timeout. wait_timeout The number of seconds the server waits for activity on a non-interactive connection before closing it. On thread startup, the session wait_timeout value is initialized from the global wait_timeout value or from the global interactive_timeout value, depending on the type of client (as defined by the CLIENT_INTERACTIVE connect option to mysql_real_connect()). See also interactive_timeout. Thanks Ezequiel Colombo