[esb-issues] [JBoss JIRA] Reopened: (JBESB-638) Transient registry errors caused by jUDDI race condition
Mark Little (JIRA)
jira-events at lists.jboss.org
Fri Jul 6 09:17:54 EDT 2007
[ http://jira.jboss.com/jira/browse/JBESB-638?page=all ]
Mark Little reopened JBESB-638:
-------------------------------
> Transient registry errors caused by jUDDI race condition
> --------------------------------------------------------
>
> Key: JBESB-638
> URL: http://jira.jboss.com/jira/browse/JBESB-638
> Project: JBoss ESB
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Components: Registry and Repository
> Reporter: Kevin Conner
> Assigned To: Kevin Conner
> Fix For: 4.2 Milestone Release 3
>
>
> Kurt, can you raise the following with jUDDI and have it fixed?
> Thanks.
> There is a race condition in the jUDDI codebase which causes transient registry failures.
> The symptom of the race condition is the following error message
> E_busy (10400) The request cannot be processed at the current time. The Registry is currently unavailable.
> The class containing the race condition is org.apache.juddi.registry.local.Registry
> Every call to Registry.getRegistry() results in the recreation and initialisation of a global variable (registry). As the assignment of the global variable is made *before* the initialisation method is called there exists a window of opportunity whereby a caller can obtain a reference to an uninitialised registry. The consequence of this is that calls to RegistryEngine.isAvailable() can return false.
> I'm not sure why the RegistryEngine is being recreated on every call but the current code is unsafe (even if ignoring multiprocessor memory models). There should not be a global reference to the registry if it is a requirement to recreate it on every invocation. If it is not a requirement then the initialisation should really be occurring within a static block.
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