"michele.tommaso" wrote : hi, | when I create a JDBC OCI connection on Linux server, i have 90 (!!) child processes owening to the main process that lock the server. | Investigate the thread dump when there is a lock on the server . figure out what threads are getting hanged . Who is spanning those 90 processes , are these spanned from your application ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4104522#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...