[jbossts-issues] [JBoss JIRA] Closed: (JBTM-346) XTS coordinator recovery

[Andrew Dinn (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBTM-346?page=all ]

Andrew Dinn closed JBTM-346.
----------------------------

    Resolution: Done

The recovery manager now provides a thread safe mechanism for adding and deleting recovery modules dynamically and this has been used to add and remove the ACCoordinator recovery module from the XTS package at XTS service deploy/undeploy.

The changes to the thread model for RecoveryManager/PeriodicRecovery ensure that addition or removal does not interfere with any concurrent scan. A scanning thread copies the list (thread-safely) before it commences scanning. However, this implementation does mean that the list used by a scanning thread to drive recovery may not include changes made to the list returned by calls to getModuleList(). This might possibly be an issue if the call were made from the scanner thread by recovery code expecting to find its own recovery module in the list. At present only XAResourceRecord calls getModuleList() and there is no issue with it.

> XTS coordinator recovery
> ------------------------
>
>                 Key: JBTM-346
>                 URL: http://jira.jboss.com/jira/browse/JBTM-346
>             Project: JBoss Transaction Manager
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: WS-T Implementation, Recovery
>    Affects Versions: 4.3.0.GA
>            Reporter: Jonathan Halliday
>         Assigned To: Andrew Dinn
>             Fix For: 4.4.CR1
>
>
> Take the prototype recovery module for XTS coordinator and wire it up to the XTS .sar deployment, so that it gets registered and unregistered when XTS is deployed/undeployed into JBossAS. Check that it works.

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