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Date: Mon, 28 May 2012 03:12:24 +0000 (UTC)
From: "David Jencks (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (GERONIMO-5824) jpa JTA transaction and missing
 jta-data-source should be warned about or rejected
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    [ https://issues.apache.org/jira/browse/GERONIMO-5824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13284281#comment-13284281 ] 

David Jencks commented on GERONIMO-5824:
----------------------------------------

Thanks for looking into this.

in the persistence.xml you can specify <jta-datasource> and <non-jta-datasource>.  In this case only the <non-jta-datasource> was specified.  However, the datasource configured there should have had 

<no-transaction/> in its plan but had either 

<local-transaction/>
or
<xa-transaction/>

Openjpa uses the non-jta-datasource for things like creating tables, getting "sequence" values from tables outside a jta transaction, and similar things.  It uses the connection.commit style of local transaction management which causes exceptions if the connection is already enrolled in an XA transaction since it's from a transactional datasource.

If this is not enough information let me know.
                
> jpa JTA transaction and missing jta-data-source should be warned about or rejected
> ----------------------------------------------------------------------------------
>
>                 Key: GERONIMO-5824
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-5824
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: persistence
>    Affects Versions: 2.1.8, 2.2.2, 3.0
>            Reporter: David Jencks
>
> Someone just had a lot of weird transaction errors that turned out to be because they had configured a persistence.xml with JTA transaction support and only a non-jta-datasource that was actually transactional.  When both the tm and openjpa tried to control the tx confusion enused.
> We can detect this situation on deployment and either reject it or at least loudly warn about it.

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