[JBoss JIRA] (JBTM-1354) JCA recovery race condition
by Tom Jenkinson (JIRA)
[ https://issues.jboss.org/browse/JBTM-1354?page=com.atlassian.jira.plugin.... ]
Tom Jenkinson updated JBTM-1354:
--------------------------------
Status: Resolved (was: Pull Request Sent)
Resolution: Done
> JCA recovery race condition
> ---------------------------
>
> Key: JBTM-1354
> URL: https://issues.jboss.org/browse/JBTM-1354
> Project: JBoss Transaction Manager
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Components: JCA, JTA, Recovery
> Reporter: Tom Jenkinson
> Assignee: Tom Jenkinson
> Fix For: 4.17.4, 5.0.0.M2
>
>
> Evidenced in SimpleIsolatedServers::testSimultaneousRecovery
> Basically XATerminatorImple -> SAA::activate() -> XAResourceRecord::restore_state() -> getNewXAResource() -> XARecoveryModule::getNewXAResource()
> At this point _xidScans may be none-null but still only partial from the first scan: periodicWorkSecondPass -> bottomUpRecovery -> resourceInitiatedRecoveryForRecoveryHelpers -> xaRecovery
> if (_xidScans == null)
> _xidScans = new Hashtable<XAResource,RecoveryXids>();
> What I am not sure of is whether we should synchronize bottomUpRecovery and getNewXAResource as that would stop this race condition. Gonna give that a whirl.
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12 years