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. My configuration is - vm: sun-jdk 1.6 - JBoss 4.0.5 GA - driver : ojdbc14.jar (Oracle Client 10.2) - RAC ORACLE Oracle-ds.xml ------------------------------ <driver-class>oracle.jdbc.driver.OracleDriver</driver-class> <connection-url>jdbc:oracle:oci:@IRES_WEB</connection-url> <min-pool-size>1</min-pool-size> <max-pool-size>20</max-pool-size> <user-name>xxxxx</user-name> xxxxxx Thanks Michele View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4099946#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...