Trans time out

Hi,
I have a stateless session bean which calls a class which parses a huge xml file
and saves it to a database using entity bean, if the transaction runs for more
than 5 minutes , Tx. timesout and the whole Tx. rolls back. In my stateless session
bean i have timeout as 300 secs. In my enity bean trans attribute is mandatory.
One way to handle this problem is to increase the timeout. Is there any other
way of solving it or am i doing something fundamentally wrong.
Thanks in advance

Hi,
I can't figure out why i got the time out exception here. The bean only has one
method. what it does is to read off the message, if there is one then return the
message, otherwise return null. Actually nothing is transactional, but I like
the mechanism to time out the call. Question is:
1.Am I doing in the right way that have the ejb be transaction aware?
2. How can I figure out what caused the ejb to take that long?
3. In case of time out, it time out at the exact time that specified, so it will
throw the exception at that time? Normally what it should be done in the time
out? Do somethong in the bean or the client needs to catch the exception? what's
a good way to do it?
Thanks
java.rmi.UnexpectedException: Unexpected exception in ResBean.getResponse():
javax.transaction.RollbackException: Transaction TxC (5517625, xid = 1018856429251_65762,
timeout = 0, txState = Rolledback, root = null has been rolled back.Reason: Transaction
(TxC (5517625, xid = 1018856429251_65762, timeout = 240, txState = Marked Rollback,
root = null) rolled back after 240 sec.
     at weblogic.jts.internal.CoordinatorImpl.throwRollbackException(CoordinatorImpl.java:726)
     at weblogic.jts.internal.CoordinatorImpl.commit(CoordinatorImpl.java:347)
     at weblogic.jts.internal.TxContext.commit(TxContext.java:255)
     at weblogic.ejb.internal.StatelessEJBObject.postInvokeOurTx(StatelessEJBObject.java:88)
     at weblogic.ejb.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:758)
     at ResponseBeanEOImpl.getResponse(ResponseBeanEOImpl.java:105)
     at ResponseBeanEOImpl_ServiceStub.getResponse(ResponseBeanEOImpl_ServiceStub.java:145)
     at jsp_servlet._reponse._jspService(_response.java:150)
     at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:106)
     at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:907)
     at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:851)
     at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:252)
     at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:364)
     at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:252)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:129)
Rob Woollen <[email protected]> wrote:
What do you expect to happen when the tx rolls back? The timer service
is not
participating in the tx so you will not be called back again.
There is a JMS "birth" time feature in WLS 6.1 JMS that you may want
to look into.
-- Rob
subra36024 wrote:
Hi rob,
Thanks for your reply.
After parsing the file i have to save the data to database. I amusing BMP for
this. I want this to be the part of Tx. How do i handle this.
Also The stateless session bean is triggered by a weblogic time services,
Thanks
Rob Woollen <[email protected]> wrote:
I'd probably make the session bean's parse method NotSupported and
not
do the parse in
the transaction.
I also wonder if you should do this synchronously. i.e. is it necessary
for the
caller to wait 5+ minutes for the parse to complete. I'd considerusing
messaging to
publish the XML message and have it parsed by a consumer.
-- Rob
subra36024 wrote:
Hi,
I have a stateless session bean which calls a class which parses
a
huge xml file
and saves it to a database using entity bean, if the transaction
runs
for more
than 5 minutes , Tx. timesout and the whole Tx. rolls back. In
my
stateless session
bean i have timeout as 300 secs. In my enity bean trans attribute
is
mandatory.
One way to handle this problem is to increase the timeout. Is thereany other
way of solving it or am i doing something fundamentally wrong.
Thanks in advance

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