0 Replies Latest reply on Mar 8, 2016 5:38 AM by Grischa Paul

    Problem with Oracle XA-Datasource when getting the connection before starting the transaction

    Grischa Paul Newbie

      Hello,

      since the port of our enterprise application from EJB 2.1 to EJB 3.1 a session bean invoked periodically by an EJBTimer gets the following exception when performing database operations with an Oracle XA-datasource:

       

      08:46:10,865 WARN  [com.arjuna.ats.jta] (EJB default - 7) ARJUNA016061: TransactionImple.enlistResource - XAResource.start returned: XAException.XAER_PROTO for < formatId=131077, gtrid_length=29, bqual_length=36, tx_uid=0:ffff0a01380e:-235fbea8:56de8320:e3, node_name=1, branch_uid=0:ffff0a01380e:-235fbea8:56de8320:e5, subordinatenodename=null, eis_name=java:/Moms67DS >: oracle.jdbc.xa.OracleXAException

              at oracle.jdbc.xa.OracleXAResource.checkError(OracleXAResource.java:1033) [ojdbc6.jar:11.2.0.1.0]

              at oracle.jdbc.xa.client.OracleXAResource.start(OracleXAResource.java:240) [ojdbc6.jar:11.2.0.1.0]

              at org.jboss.jca.adapters.jdbc.xa.XAManagedConnection.start(XAManagedConnection.java:259)

              at org.jboss.jca.core.tx.jbossts.XAResourceWrapperImpl.start(XAResourceWrapperImpl.java:188) [ironjacamar-core-impl-1.0.9.Final.jar:1.0.9.Final]

              at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.java:636)

              at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.java:397)

              at org.jboss.jca.core.connectionmanager.listener.TxConnectionListener$TransactionSynchronization.enlist(TxConnectionListener.java:587) [ironjacamar-core-impl-1.0.9.Final.jar:1.0.9.Final]

              at org.jboss.jca.core.connectionmanager.listener.TxConnectionListener.enlist(TxConnectionListener.java:264) [ironjacamar-core-impl-1.0.9.Final.jar:1.0.9.Final]

              at org.jboss.jca.core.connectionmanager.tx.TxConnectionManagerImpl.transactionStarted(TxConnectionManagerImpl.java:383) [ironjacamar-core-impl-1.0.9.Final.jar:1.0.9.Final]

              at org.jboss.jca.core.connectionmanager.ccm.CachedConnectionManagerImpl.userTransactionStarted(CachedConnectionManagerImpl.java:207) [ironjacamar-core-impl-1.0.9.Final.jar:1.0.9.Final]

              at org.jboss.jca.core.tx.jbossts.UserTransactionListenerImpl.userTransactionStarted(UserTransactionListenerImpl.java:52) [ironjacamar-core-impl-1.0.9.Final.jar:1.0.9.Final]

              at org.jboss.tm.usertx.UserTransactionRegistry.userTransactionStarted(UserTransactionRegistry.java:119)

              at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.begin(ServerVMClientUserTransaction.java:146)

       

      It happens with AS 7.1 and EAP 6.0, 6.1 and 6.2. With higher versions I don't get this error.

      The code just contains

       

      Connection connection = datasource.getConnection()

      ejbContext.getUserTransaction().begin();

      //...perform some SQL.

      ejbContext.getUserTransaction().commit();

      connection.close();

       

      When changing the order by getting the connection after starting the transaction the error does not occur.

      In the EJB-spec. there is only mentioned that resources manages used after starting a transaction are enlisted, but in the examples the connections are also obtained before starting the transaction.

       

      This is my xa-datasource:

      <xa-datasource jndi-name="java:/Moms67DS" pool-name="Moms67DS" enabled="true">

          <xa-datasource-property name="URL">

              jdbc:oracle:thin:@localhost:1521:test

          </xa-datasource-property>

          <xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class>

          <driver>com.oracle</driver>

          <xa-pool>

              <min-pool-size>10</min-pool-size>

              <max-pool-size>20</max-pool-size>

              <prefill>true</prefill>

              <no-tx-separate-pools>true</no-tx-separate-pools>

          </xa-pool>

          <security>

              <user-name>moms67</user-name>

              <password>moms67</password>

          </security>

      </xa-datasource>

       

      And the driver:

       

      <driver name="com.oracle" module="com.oracle">

          <xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class>

      </driver>

       

      I use the ojdbc6.jar JDBC driver.

       

      Any hints are welcome, thank you.