Wolf-Dieter Fink [https://community.jboss.org/people/wdfink] created the discussion "Re: Maximum Database connection issue in JBoss 5.1" To view the discussion, visit: https://community.jboss.org/message/734446#734446 -------------------------------------------------------------- I don't think that the Tomcat->JBoss connection will be the problem. It might be a problem whether the DB connection is not 'closed' that mean that it is not correct given back to the pool. Such problems happen if the ResultSet/Statement/Connection is not closed in any circumstances. i.e. if you use the connection to execute your own SQL. You will find settings and informations in this https://community.jboss.org/docs/DOC-9255 wiki, also the *<track-statements>* element in the ds configuration (see this https://community.jboss.org/docs/DOC-9328 wiki) might help -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/734446#734446] Start a new discussion in Datasource Configuration at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]