"Can't call rollback when autocommit=true" problem with JBos

[advaittrivedi]

Hi All,
I am running JBoss 4.2.1.GA and mysql-connector-java-5.0.3. I am having this ds file:

<datasources>
 <local-tx-datasource>
 <jndi-name>MyDS</jndi-name>
 <connection-url>jdbc:mysql://localhost:4306/myds?autoReconnect=true</connection-url>
 <driver-class>com.mysql.jdbc.Driver</driver-class>
 <user-name>***</user-name>
 <password>***</password>
 <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
 <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) -->
 <dialect>org.hibernate.dialect.MySQLDialect</dialect>
 </local-tx-datasource>
</datasources>

my hibernate.cfg.xml

<hibernate-configuration>
 <session-factory>
 <property name="connection.datasource">java:MyDS</property>
 <property name="hibernate.bytecode.use_reflection_optimizer">false</property>
 <!--
 <property name="hibernate.current_session_context_class">thread</property>
 -->
 <property name="hibernate.connection.release_mode">after_transaction</property>
 <mapping resource="UserInfo.hbm.xml" />
 </session-factory>
</hibernate-configuration>

this is how i retrieve SessionFactory:

public static SessionFactory getSessionFactory() {
Configuration conf = new Configuration().configure();
 return conf.buildSessionFactory();
}

this is how i use hibernate session:

session =sessionFactory.openSession();
session.beginTransaction();
session.save(userInfo);
session.getTransaction().commit();

I get this excpetions when i try to get session factory:

2007-12-18 11:29:04,090 WARN [org.jboss.resource.connectionmanager.TxConnectionManager] Connection error occured: org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener@19ae30e[state=NORMAL mc=org.jboss.resource.adapter.jdbc.local.LocalManagedConnection@10b8754 handles=0 lastUse=1197957541349 permit=true trackByTx=false mcp=org.jboss.resource.connectionmanager.JBossManagedConnectionPool$OnePool@567b79 context=org.jboss.resource.connectionmanager.InternalManagedConnectionPool@1c44935 xaResource=org.jboss.resource.connectionmanager.TxConnectionManager$LocalXAResource@1e1aab1 txSync=null]
com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: Can't call rollback when autocommit=true
 at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:888)
 at com.mysql.jdbc.Connection.rollback(Connection.java:5041)
 at org.jboss.resource.adapter.jdbc.local.LocalManagedConnection.rollback(LocalManagedConnection.java:86)
 at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.tidyup(TxConnectionManager.java:683)
 at org.jboss.resource.connectionmanager.BaseConnectionManager2.returnManagedConnection(BaseConnectionManager2.java:353)
 at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.connectionClosed(TxConnectionManager.java:639)
 at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.closeHandle(BaseWrapperManagedConnection.java:266)
 at org.jboss.resource.adapter.jdbc.WrappedConnection.close(WrappedConnection.java:129)
 at org.hibernate.connection.DatasourceConnectionProvider.closeConnection(DatasourceConnectionProvider.java:74)
 at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:113)
 at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009)
 at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)
 at com.mphasis.mframeopen.hibernate.HibernateUtil.getSessionFactory(HibernateUtil.java:12)
 at com.mphasis.mframeopen.webmetrics.dao.AddUserInfoDAO.getHibernateSessionFactory(AddUserInfoDAO.java:12)

[vickyk]

I don't see this an JCA problem , looks like you are missing something in hibernate misconfiguration . Can you look for that ?

[jaikiran]

Your hibernate.cfg.xml contains:

<property name="connection.datasource">java:MyDS</property>

Change it to

<property name="hibernate.connection.datasource">java:MyDS</property>

See if that works.

[adrian.brock]

1) Don't use autoreconnect

autoReconnect=true

This breaks transactions. A reconnect looses all the state.

2) Why are you defining a local-tx datasource then handling the transaction yourself?
Looks very confused to me. no-tx-datasource perhaps if want to do everything
yourself?

3) "thread" session context is just "broken" if you in an appserver/using JTA/CMT/BMT.
It simply doesn't understand transaction demarcation (see the FAQ)
and [url]http://www.hibernate.org/42.html[url]

4) You should also be using "AFTER_STATEMENT" release mode
http://www.hibernate.org/hib_docs/reference/en/html/transactions.html
since the appserver's connection manager already does the necessary
caching of the connection and also understands when to (not) cache better
than hibernate when crossing transaction boundaries.