[jboss-jira] [JBoss JIRA] (AS7-4786) MSC controller hangs when loading an ear with multiple presistance units on a single threaded machine

[Scott Marlow (JIRA)]

    [ https://issues.jboss.org/browse/AS7-4786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12697185#comment-12697185 ] 

Scott Marlow commented on AS7-4786:
-----------------------------------

attached file hungas7.txt is the output from running jstack against the AS instance after attempting to deploy with -Dorg.jboss.server.bootstrap.maxThreads=2.
                
> MSC controller hangs when loading an ear with multiple presistance units on a single threaded machine
> -----------------------------------------------------------------------------------------------------
>
>                 Key: AS7-4786
>                 URL: https://issues.jboss.org/browse/AS7-4786
>             Project: Application Server 7
>          Issue Type: Bug
>         Environment: Centos 6, single core lib-virt VM
>            Reporter: Wouter De Borger
>            Assignee: Scott Marlow
>              Labels: hibernate, naming, race
>         Attachments: hungas7.txt
>
>
> When deploying an EAR with two persistence units on single core machines, the server hangs.
> When increasing the number of cores to two, the same server just works. 
> I traced the bug to the method in org.jboss.as.naming.WritableServiceBasedNamingStore.unbind 
> The container attempts to register "hibernate/SessionFactory" twice.
> The first time it works, the second time it hangs on the wait statement.
> I suspect a race condition in the ServiceControllerImpl.

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