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https://issues.apache.org/jira/browse/JCR-769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12480020
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Claus Köll commented on JCR-769:
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hi dominique,
yes you have understood me
i have read the JCR-335 and you are right.
but let see this szenario
you must open a "Admin"Session next to a normal "User"Session
so you have 2 XASession in one Transaction and this wil not work now.
you are right the second session makes no updates but maybe it will.
i think we must look that we use the same TransactionContext as "shareable"
like a shareable DataSource in EJBContainer.
so we can check it in the XAResources before we make a exclusive lock.
The same behaviour we have in EJBContainer with DataSources.
If you have a Transaction with 2 Entity Beans and a IsolationLevel like
serializeable you must also look to get a reference from the the same
DataSource (Connection)
to prevent a lock on db from the first ejb.
> Unable to login with two different Credentials to same workspace in one
> Transaction
> -----------------------------------------------------------------------------------
>
> Key: JCR-769
> URL: https://issues.apache.org/jira/browse/JCR-769
> Project: Jackrabbit
> Issue Type: Bug
> Components: jca
> Affects Versions: 1.2.1
> Environment: Websphere 5.1.1 J2C Adapter
> Reporter: Claus Köll
> Attachments: patch.txt, stacktrace.txt
>
>
> I'm using the Jackrabbit 1.2.1 JCA adapter and trying to access in a
> SessionBean-Method with Container Transaction a Workspace with 2 different
> Credentials.
> The Method takes about 400ms to finish but no commit on TransactionContextr
> occurs (Debugging ..) only the prepare was called 2 times .
> The Container hangs on the PostInvoke Method about 5 seconds and then i get a
> "javax.transaction.xa.XAException"
> with the Warn Message: Transaction rolled back because timeout expired
> The code ..
> Context ctx = new InitialContext();
> Repository repository = (Repository) ctx.lookup("java:comp/env/jackrabbit");
> Credentials credentials = new SimpleCredentials("user1",
> "password1".toCharArray());
> Credentials credentials2 = new SimpleCredentials("user2",
> "password2".toCharArray());
> Session session1 = repository.login(credentials, "default");
> Session session2 = repository.login(credentials2, "default");
> Session1 adds a node to the workspace .. and with the session2 i do nothing
> except the login !
> If i make no second login the Method works fine.
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