[
https://issues.apache.org/jira/browse/GERONIMO-4471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lin Sun updated GERONIMO-4471:
------------------------------
Description:
Improve heuristic exception handling during rollback, when txmanager.commit is
called by providing a rollbackResourcesDuringCommit method to throw appropriate
heuristic exceptions. The logic is:
1. If XAException.XA_HEURRB arisen from XAResource rollback, this means
transaction has been heuristically rolled back, thus we just throw normal
RollbackException.
2. If XAException.XA_HEURMIX arisen from XAResource rollback, this means
transaction has been heuristically rolled back and committed, thus we just
throw HeuristicMixedException.
3. If XAException.XA_HEURCOM arisen from XAResource rollback, this means
transaction has been heuristically committed. In this case, if transaction has
ever been committed (via other XAResources enlisted), then we throw
HeuristicMixedException.
4. Other XAExceptions, throw SystemExceptions.
5. If no specific XAException or only XAException.XA_HEURRB, throw
RollbackException.
The rollbackResourcesDuringCommit method will be used during the commit context
instead of the current rollbackResources method.
was:
Improve heuristic exception handling during rollback, when txmanager.commit is
called by providing a rollbackResourcesDuringCommit method to throw appropriate
heuristic exceptions. The logic is:
1. If XAException.XA_HEURRB arisen from XAResource rollback, this means
transaction has been heuristically rolled back, thus we just throw normal
RollbackException.
2. If XAException.XA_HEURMIX arisen from XAResource rollback, this means
transaction has been heuristically rolled back and committed, thus we just
throw HeuristicMixedException.
3. If XAException.XA_HEURCOM arisen from XAResource rollback, this means
transaction has been heuristically committed. In this case, if transaction has
ever been committed (via other XAResources enlisted), then we throw
HeuristicMixedException.
4. Other XAExceptions, throw SystemExceptions.
5. If no specific XAException or only XAException.XA_HEURRB, throw
RollbackException.
The rollbackResourcesDuringCommit method will be used during the commit context
instead of the current rollbackResources method.
Also, during the internalPrepare method, it has:
//TODO document why this is true from the spec.
//XAException during prepare means we can assume resource is
rolled back.
rms.remove();
I don't think this is correct. Per jta spec page 50, If the resource manager
wants to roll back the transaction,
it should do so by throwing an appropriate XAException in the prepare method.
With that, I think we cannot assume resource is already rolled back. It is
just the resource manager wants to roll back the transaction. thus I propose
us remove the "rms.remove()" here, so that this rm can be included in the
rollback action.
Remove stuff under "Also, during the internalPrepare method, it has:", because
I saw more details on this from the OTS spec, in multiple places, such as:
The resource can return VoteRollback under any circumstances, including not
having
any knowledge about the transaction (which might happen
after a crash). If this
response is returned, the transaction must be rolled back.
Furthermore, the Transaction
Service is not required to perform any additional
operations on this resource.
Returning VoteRollback to prepare
A Resource that replies VoteRollback has no requirement to log. Once having
replied, the Resource can return recoverable resources to their prior state and
forget the transaction.
> improve heuristic exception handling in rollback when txmanager.commit is
> called
> --------------------------------------------------------------------------------
>
> Key: GERONIMO-4471
> URL: https://issues.apache.org/jira/browse/GERONIMO-4471
> Project: Geronimo
> Issue Type: Improvement
> Security Level: public(Regular issues)
> Components: transaction manager
> Affects Versions: 2.2
> Reporter: Lin Sun
> Assignee: Lin Sun
> Fix For: 2.2
>
>
> Improve heuristic exception handling during rollback, when txmanager.commit
> is called by providing a rollbackResourcesDuringCommit method to throw
> appropriate heuristic exceptions. The logic is:
> 1. If XAException.XA_HEURRB arisen from XAResource rollback, this means
> transaction has been heuristically rolled back, thus we just throw normal
> RollbackException.
> 2. If XAException.XA_HEURMIX arisen from XAResource rollback, this means
> transaction has been heuristically rolled back and committed, thus we just
> throw HeuristicMixedException.
> 3. If XAException.XA_HEURCOM arisen from XAResource rollback, this means
> transaction has been heuristically committed. In this case, if transaction
> has ever been committed (via other XAResources enlisted), then we throw
> HeuristicMixedException.
> 4. Other XAExceptions, throw SystemExceptions.
> 5. If no specific XAException or only XAException.XA_HEURRB, throw
> RollbackException.
> The rollbackResourcesDuringCommit method will be used during the commit
> context instead of the current rollbackResources method.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
