[Mulgara-general] MulgaraTransactionException

[Paul Gearon]

Hmmm, I don't know if any work has gone into keeping the JRDF
interface up to date with the JTA and associated work.

What sort of operations are you doing with JRDF? Are is it feasible to use TQL?

Paul

On Tue, Jul 15, 2008 at 9:35 AM, Edwin Shin <eddie at fedora-commons.org> wrote:
> I've been having some trouble running down an error our users have been
> hitting with Mulgara. Unfortunately, while I can reproduce the error
> quite regularly when inserting enough triples, I can't reproduce it when
> I run it through a debugger, nor when I write a very simple unit test.
> It seems to require at least some tens of thousands of triples to
> provoke with any regularity, however.
>
> I'm not doing anything more complex than a bunch of inserts followed by
> a session close. I am however using a LocalJRDFDatabaseSession.
>
> I'm hoping someone can throw me some pointers on what to look for in
> running this down. This has been observed against Mulgara 1.1 and
> against trunk (r1078).
>
>
> ERROR 2008-07-15 22:23:12.729 [main] (MulgaraTransactionFactory)
> Heuristic Rollback Failed on session close- aborting
> ERROR 2008-07-15 22:23:12.729 [main] (MulgaraInternalTransaction)
> Heuristic Rollback failed on session close - Aborting: 32803057,
> state=ACTUNREF, inuse=1, using=0
> org.mulgara.query.MulgaraTransactionException: Concurrent access
> attempted to transaction: Transaction has NOT been rolledback.
>        at
> org.mulgara.resolver.MulgaraInternalTransaction.activate(MulgaraInternalTransaction.java:130)
>        at
> org.mulgara.resolver.MulgaraInternalTransaction.execute(MulgaraInternalTransaction.java:615)
>        at
> org.mulgara.resolver.MulgaraTransactionFactory.closingSession(MulgaraTransactionFactory.java:147)
>        at
> org.mulgara.resolver.MulgaraTransactionManager.closingSession(MulgaraTransactionManager.java:236)
>        at org.mulgara.resolver.DatabaseSession.close(DatabaseSession.java:591)
>        at org.trippi.impl.mulgara.MulgaraSession.close(MulgaraSession.java:77)
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