[jbossts-issues] [JBoss JIRA] Work started: (JBTM-463) WS-AT can leak participant-side log entries when committing with only one participant

Andrew Dinn (JIRA) jira-events at lists.jboss.org
Fri Jan 23 04:25:44 EST 2009

     [ https://jira.jboss.org/jira/browse/JBTM-463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on JBTM-463 started by Andrew Dinn.

> WS-AT can leak participant-side log entries when committing with only one participant
> -------------------------------------------------------------------------------------
>                 Key: JBTM-463
>                 URL: https://jira.jboss.org/jira/browse/JBTM-463
>             Project: JBoss Transaction Manager
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Transaction Core, WS-T Implementation
>    Affects Versions: 4.5
>            Reporter: Andrew Dinn
>            Assignee: Andrew Dinn
> The WSAT coordinator implements its client commit operation by calling BasicAction.End(). End() calls BasicAction.doOnePhase() to decide whether to optimise the commit. If there is only one participant then doOnePhase() will return true in which case End() calls the participant record's method topLevelOnePhaseCommit() to do the commit and omits to write a log record for the transaction.
> The WSAT participant record can only perform this one phase commit by dispatching a prepare message followed by a commit message (this is required by the AT spec). The participant has to log a participant record at prepare. If the coordinator JVM crashes between prepare and commit then the participant web service will never delete the log record because it will never receive a commit message when the coordinator restarts.
> n.b. this can easily be fixed by overriding BasicAction.doOnePhase in the WSAT coordinator so that it returns false.  however, this method is final so modifying it requires a change to the signature of BasicAction.

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