How can I retrieve the id of a Transaction started by JBoss ?

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Sometimes it an be useful for debugging purpose to retrieve the id of a transaction; one typical scenario could be a transaction started by an EJB deployed as CMT.

The javax.transaction.TransactionManager interface provides two ways to fetch the transaction id:

  • The simplest strategy is to call the toString method to print complete information about the running transaction. That will print also the transaction id.

  • Other than that, you can cast the javax.transaction.Transaction instance to a com.arjuna.ats.jta.transaction.Transaction . Then, call either the get_uid method, which returns the Transaction Uid representation. Example:

com.arjuna.ats.jta.transaction.Transaction tx = (com.arjuna.ats.jta.transaction.Transaction)tx.getTransaction();
System.out.println("Transaction UID" +tx.get_uid());

  • Please note that you need to call the getTxId method to fetch the Xid for the global identifier.

 Viewing Transactions from the JBoss CLI

If you want to fetch the transactions from the CLI, the following command will show all prepared transactions:

ls /profile=default/subsystem=transactions/log-store=log-store/transactions

Then, to view attributes of a Transaction:

/profile=default/subsystem=transactions/log-store=log-store/transactions=0\:gtrw7f000001\:-b11tfg2\:3t4j1r6a\:9:read-resource