beaster [http://community.jboss.org/people/beaster] created the discussion "JBoss 6 Oracle XA datasource and no-tx-separate-pools" To view the discussion, visit: http://community.jboss.org/message/618096#618096 -------------------------------------------------------------- We are trying to run JBoss 6 with an Oracle XA datasource. We started with jboss-6.0.0.Final\docs\examples\jca\oracle-xa-ds.xml for the datasource configuration. We have been running into exceptions like the following: {noformat} 2011-07-26 20:04:04,622 WARN  [com.arjuna.ats.jta] (Thread-24 (group:HornetQ-client-global-threads-1898046)) ARJUNA-16061 TransactionImple.enlistResource - XAResource.start returned: XAException.XAER_PROTO for < formatId=131076, gtrid_length=29, bqual_length=28, tx_uid=0:ffff0a158387:126a:4e2f5438:6b5, node_name=1, branch_uid=0:ffff0a158387:126a:4e2f5438:6ba, eis_name=unknown eis name >: oracle.jdbc.xa.OracleXAException                 at oracle.jdbc.xa.OracleXAResource.checkError(OracleXAResource.java:1120)                 at oracle.jdbc.xa.client.OracleXAResource.start(OracleXAResource.java:249)                 at org.jboss.resource.adapter.jdbc.xa.XAManagedConnection.start(XAManagedConnection.java:213)                 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.java:629)                 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.java:390)                 at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener$TransactionSynchronization.enlist(TxConnectionManager.java:975)                 at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.enlist(TxConnectionManager.java:729)                 at org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:459)                 at org.jboss.resource.connectionmanager.BaseConnectionManager2.reconnectManagedConnection(BaseConnectionManager2.java:625)                 at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:499)                 at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:941)                 at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:89) {noformat} The code does obtain connections both with and without transactions. It started to appear that there is/was an issue with the <no-tx-separate-pools/> option in oracle-xa-ds.xml. I looked up org.jboss.resource.connectionmanager.JBossManagedConnectionPool in the JMX Console and found NoTxSeparatePools = false.  So I tried other combinations like <no-tx-separate-pools>true</no-tx-separate-pools> and I cannot get NoTxSeparatePools = true. I was able to change NoTxSeparatePools = true and apply the change in the JMX Console and then stop and start the MBean.  I then could run the code without any of the errors. Does anyone know how I can configure  NoTxSeparatePools = true from my oracle-xa-ds.xml configuration or is this something that is a bug that a fix is needed for? Thanks, Jeff -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/618096#618096] Start a new discussion in Datasource Configuration at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]