[jbossts-issues] [JBoss JIRA] (JBTM-622) Support for crash recovery of tx-inflow with multiple resource managers

[Tom Jenkinson (JIRA)]

    [ https://issues.jboss.org/browse/JBTM-622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12755369#comment-12755369 ] 

Tom Jenkinson commented on JBTM-622:
------------------------------------

Brain dump: Can we use the EIS name along with XID to guarantee uniqueness?
                
> Support for crash recovery of tx-inflow with multiple resource managers
> -----------------------------------------------------------------------
>
>                 Key: JBTM-622
>                 URL: https://issues.jboss.org/browse/JBTM-622
>             Project: JBoss Transaction Manager
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: JCA, Recovery, Transaction Core
>    Affects Versions: 4.2.3.CP06
>            Reporter: Toshiya Kobayashi
>            Priority: Minor
>
> JCA tx-inflow spec allows the external EIS to provide the Xid for the inflowed transaction. The TM handling the inflowed (i.e. subordinate) transaction uses this Xid verbatim when talking to RMs.
> In current implementation, each RM enlisted in the subordinate tx will see the same Xid as originally provided by the EIS. This screws recovery where multiple resources are involved, since a given Xid no longer belongs to exactly one RM, but may be shared by several. We can no longer return a single XAResource to drive the recovery for a given Xid.

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