[jbossts-issues] [JBoss JIRA] (JBTM-1718) Resolve the ParticipantCompletion race condition

[Paul Robinson (JIRA)]

    [ https://issues.jboss.org/browse/JBTM-1718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12795588#comment-12795588 ] 

Paul Robinson commented on JBTM-1718:
-------------------------------------

The current use-case for this is with our implementation of the compensation-based transactions API. Here it is common to have the coordinator, participants and client on the same VM and this issue occurs frequently causing unexpected rollbacks. Currently, our quickstarts for using the compensations API need a Byteman rule to stop this issue occurring! This is going to put many/most people off when they take a look at it.

As it's only needed internally, maybe we could offer this functionality via some hidden means that does not appear in the public API and thus doesn't break the standard for WS-BA users?
                
> Resolve the ParticipantCompletion race condition
> ------------------------------------------------
>
>                 Key: JBTM-1718
>                 URL: https://issues.jboss.org/browse/JBTM-1718
>             Project: JBoss Transaction Manager
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: TXFramework
>            Reporter: Paul Robinson
>            Assignee: Gytis Trikleris
>             Fix For: 5.0.0.M4
>
>
> This issue is documented here: JBTM-1429
> In the documentation for JBTM-1429, we state that this issue is unlikely to happen in a distributed environment. This is true, however, the Compensations API is designed to work local-only as well as distributed over WS-BA. Therefore it is much more likely to happen in a production environment.
> Therefore we need to remove this race condition. It can be done in a proprietary mannor as we are not interoperating with another implementation ion local-only mode. When distributing the transaction we fall back to the standard protocol that is susceptible to the race condition. However, as we stated in the docs, this condition is unlikely to manifest in a distributed environment.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira