[jbossts-issues] [JBoss JIRA] Commented: (JBTM-345) support dynamic (un)registration of recovery modules

Tue Mar 18 06:11:51 EDT 2008

    [ http://jira.jboss.com/jira/browse/JBTM-345?page=comments#action_12403316 ] 

Jonathan Halliday commented on JBTM-345:
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What happens if a module goes away between first and second passes, or during a recovery pass? Do we need blocking unregister calls for modules so that does not happen? 

> support dynamic (un)registration of recovery modules
> ----------------------------------------------------
>
>                 Key: JBTM-345
>                 URL: http://jira.jboss.com/jira/browse/JBTM-345
>             Project: JBoss Transaction Manager
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: Recovery
>    Affects Versions: 4.3.0.GA
>            Reporter: Jonathan Halliday
>         Assigned To: Andrew Dinn
>             Fix For: 4.4.CR1
>
>
> XTS will be deployed into JBossAS as a .sar and may be deployed and undeployed over the lifetime of the AS instance. The recovery code is always resident in JBossAS, it starts as part of the transaction service. Thus it needs to be able to support XTS registering and unregistering a recovery module for XTS transactions whilst the system is running.
> Right now recovery modules must be in the jbossjt(a|s)-properties.xml file and are read at startup only.  Allow them to be registered and unregistered programatically also. May need fixes for concurrency control, as the list of registered modules is iterated during recovery passes and concurrent modifications are a Bad Thing.

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