[jboss-user] [EJB3] - Deadlock in CMP transaction in EJB3

sabbirali kadiwala [https://community.jboss.org/people/sabbirali] created the discussion "Deadlock in CMP transaction in EJB3" To view the discussion, visit: https://community.jboss.org/message/717635#717635 -------------------------------------------------------------- I have one action it will generate three thread and each thread call same ejb service with different input paramerer. here all thread started same time when container try to commit then i got dead lock :ORA-00060: deadlock detected while waiting for resource exception so any body get this type of exception Please suggest where i m wronge ? My EJB Service operation like below In Transaction operation are void method(){ insert entity in MstSchedule will generate  id : 100 other processing on based on other 100 on other table if data not found then delete same entity where id id : 100 ( previous inserted entity) } commit by container Please reply appreciate your answer. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/717635#717635] Start a new discussion in EJB3 at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]