Hi,
it seems that PostgreSQL jdbc driver returns incorrect code on call of 'commit' during 2PC. Currently the driver
returnsXAER_RMERR.
I expect that it's this call
https://github.com/pgjdbc/pgjdbc/blob/master/org/postgresql/xa/PGXAConnection.java#L528
But the XA spec (http://pubs.opengroup.org/onlinepubs/009680699/toc.pdf) says for XAER_RMERR that
"An error occurred in committing the work performed on behalf of the transaction
branch and the branch’s work has been rolled back. Note that returning this error
signals a catastrophic event to a transaction manager since other resource
managers may successfully commit their work on behalf of this branch. This error
should be returned only when a resource manager concludes that it can never
commit the branch and that it cannot hold the branch’s resources in a prepared
state. Otherwise, [XA_RETRY] should be returned."
In case there is longer discussion about scenario hitting this issue and about handling this at RedHat bugzilla here:
https://bugzilla.redhat.com/show_bug.cgi?id=988724
From what is said here I think that PostgreSQL database should rollback the transaction itself and then it could return
XAExceptionerror code XAER_RMERR or it should return
XAER_RMFAIL or XAER_RETRY.
Would you mind my opening a issue for PostgreSQL jdbc driver?
Thank you
Ondra Chaloupka
