fregg [https://community.jboss.org/people/fregg] created the discussion "XA transaction does not work correctly" To view the discussion, visit: https://community.jboss.org/message/742711#742711 -------------------------------------------------------------- Hello, i encountered strange problem. I test XA with different JMS providers and JBoss 5.1. Currently I test JBoss Messaging 1.4.8. It has two queues: X and Y. On the JBoss 5.1 I deployed 2 MDBs. First MDB is listening on Queue X and sends message to Queue Y. Second MDB is listening on Queue Y and sends message to Queue X. With this scenario, assuming that transactions works correctly, the sum of messages on Queues X and Y should be constant. Unfortunately it isn't... When I crash the JBoss(with kill -9) I can see that some messages are missing. It happens also when i crash the JBM server. I use Oracle as persistence in JBM. Here is my connection factory def: <tx-connection-factory>      <jndi-name>JmsXA</jndi-name>            <xa-transaction/>            <track-connection-by-tx />      <rar-name>jms-ra.rar</rar-name>      <connection-definition>org.jboss.resource.adapter.jms.JmsConnectionFactory</connection-definition>      <config-property name="SessionDefaultType" type="java.lang.String">javax.jms.Queue</config-property>      <config-property name="JmsProviderAdapterJNDI" type="java.lang.String">java:/DefaultJMSProvider</config-property>      <max-pool-size>20</max-pool-size>      <!--security-domain-and-application>TibcoXARealm</security-domain-and-application--> </tx-connection-factory> -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/742711#742711] Start a new discussion in JBoss Messaging at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]