[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Wrong behavior in my application, after setting transaction

Hi all, This is my datasources definition: - <local-tx-datasource> <jndi-name>AmsDS</jndi-name> <connection-url>jdbc:mysql://localhost:3306/ams_db</connection-url> <driver-class>com.mysql.jdbc.Driver</driver-class> <user-name>jboss</user-name> password <transaction-isolation>TRANSACTION_READ_UNCOMMITTED</transaction-isolation> <min-pool-size>1</min-pool-size> <max-pool-size>200</max-pool-size> <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name> - <type-mapping>mySQL</type-mapping> </local-tx-datasource> As you can see, I set the transaction isolation level to READ_UNCOMMITED. However, when I restart jboss, when I try to persist an entry from transaction A, and then , inside the transaction code to select the persisted entry, I get that the entry does not exist. Both insertion and selection are done using EntityManager. I thought that using READ_UNCOMITTED means that I can read any uncommited changes made by any transaction. Can anyone explain me what I'm doing wrong? Thanks Yair Zaslavsky View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3993466#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...