[jbossts-issues] [JBoss JIRA] Commented: (JBTM-578) Put back branch equivalent code for ArjunaCore transactions

[Michael Musgrove (JIRA)]

    [ https://jira.jboss.org/browse/JBTM-578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12558252#action_12558252 ] 

Michael Musgrove commented on JBTM-578:
---------------------------------------

JBTM-577 is about the OTS transaction id (the otid) not encoding the global transaction id correctly (see the method Utility.otidToUid) which was a problem for BlackTie.
This JIRA is about ignoring the bqal component of the otid. 

The fix for JBTM-577 added a comment saying that "THIS WILL BE AN ISSUE FOR INTEROPERABILITY!!" and JBTM-578 was raised to track it.

However, the interoperability is only for TM implementations that provide integration with C XA Resource Managers as described in Annex B.2.5 of the OTS specification but JBossTS does not implement this appendix (it uses JTA as the preferred XA integration mechanism). 

Furthermore, in OTS, the bqual field is intended for applications where different processes wish to share the same (XA) transaction branch (referred to as the tightly-coupled model). BlackTie is the primary use case for C XA integration but it uses the loosely coupled model (note also that interoperability via OSI-TP with other TP systems does NOT support the tightly-coupled model).

Consequently, I recommend closing this JIRA as will not fix.



> Put back branch equivalent code for ArjunaCore transactions
> -----------------------------------------------------------
>
>                 Key: JBTM-578
>                 URL: https://jira.jboss.org/browse/JBTM-578
>             Project: JBoss Transaction Manager
>          Issue Type: Task
>      Security Level: Public(Everyone can see) 
>          Components: Transaction Core
>    Affects Versions: 4.7.0
>            Reporter: Mark Little
>            Assignee: Michael Musgrove
>             Fix For: future
>
>
> Needed for interop.

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