[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:all-tabpanel ]

Scott Marlow updated AS7-4786:
------------------------------

             Fix Version/s: 7.2.0.Alpha1
          Git Pull Request: https://github.com/jbossas/jboss-as/pull/2407  (was: https://github.com/jbossas/jboss-as/pull/2407)
         Affects Version/s: 7.1.1.Final
    Workaround Description: 
1. Start the AS with -Dorg.jboss.server.bootstrap.maxThreads=3
You might have to use a higher number for maxThreads (set to 2 + number of persistence units with "hibernate.session_factory_name".)

OR 

2. Remove "hibernate.session_factory_name" properties from the persistence.xml
<property name="hibernate.session_factory_name" value="java:global/hibernate/SessionFactory"/>

               Component/s: JPA / Hibernate
           Forum Reference: https://community.jboss.org/thread/200411


Added link to user forum discussion of this issue.
                
> 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
>          Components: JPA / Hibernate
>    Affects Versions: 7.1.1.Final
>         Environment: Centos 6, single core lib-virt VM
>            Reporter: Wouter De Borger
>            Assignee: Scott Marlow
>              Labels: hibernate, naming, race
>             Fix For: 7.2.0.Alpha1
>
>         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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