[hibernate-dev] [renamed] multiple invocations on same transaction, separate thread is not working unless is changed to false...

Scott Marlow smarlow at redhat.com
Wed Aug 6 17:18:21 EDT 2014


Either the subject or email isn't working to discuss this.  Hence, the 
rename.

On 08/05/2014 11:32 AM, Scott Marlow wrote:
> More in-line below.
>
> On 08/05/2014 10:52 AM, Scott Marlow wrote:
>> Steve,
>>
>> This is the test case that I was talking about on IRC.  It simulates
>> what happens when several remote EJB calls occur using the same JTA
>> transaction.  This case is probably common enough that we should solve it.
>>
>> The workaround is to set hibernate.jta.track_by_thread=false.
>>
>>
>>
>> On 06/24/2014 10:23 PM, Scott Marlow wrote:
>>> I pushed a test case that simulates what can happen with remote EJB
>>> invocations that share the same JTA transaction & EntityManager.  The
>>> "Transaction was rolled back in a different thread!" error [2] is thrown
>>> but shouldn't be, since the active application thread has changed to a
>>> different thread (which can happen).  The workaround is to set
>>> "hibernate.jta.track_by_thread" to false.
>>>
>>> I think that we need to save the thread id at the start of every
>>> application call into the EntityManager.
>
> I'm wondering if a different approach than using the thread id, would
> cover more cases (specifically the distributed + remote cases).  For
> example, adding a configuration option for a session level lock that the
> SessionImpl implements, to protect against two threads calling into the
> same session concurrently.
>
>>>
>>> Scott
>>>
>>> [1] https://github.com/scottmarlow/hibernate-orm/tree/sametx_multithreads
>>>
>>> [2] https://gist.github.com/scottmarlow/63c4ab686368853d759b
>>> _______________________________________________
>>> hibernate-dev mailing list
>>> hibernate-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/hibernate-dev
>>>
>>
>> _______________________________________________
>> hibernate-dev mailing list
>> hibernate-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/hibernate-dev
>>
>
> _______________________________________________
> hibernate-dev mailing list
> hibernate-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/hibernate-dev
>



More information about the hibernate-dev mailing list