[rules-users] [droolsflow] JPAVariablePersister Crashing SQL Server RPC?

[Bill Tarr]

I am back on the same dev server today, no issues now.  
 
I am using JTDS 1.2.2, which I agree is generally better than the MS version.  
 
Our DBA thinks the .NET update (or something else) reset the number of allowed connections from 32,676 to 5.  That could be it.  Anyway, unless we can recreate, its a dead issue.
 
Anyway, I've got some other issues with JPAVariablePersister, so I'm going to start another thread, hopefully you can help me again :-)



________________________________
From: Mauricio Salatino <salaboy at gmail.com>
To: Rules Users List <rules-users at lists.jboss.org>
Sent: Sat, October 17, 2009 7:06:46 AM
Subject: Re: [rules-users] [droolsflow] JPAVariablePersister Crashing SQL Server RPC?

Hmm...
Interesting.. what JDBC driver are you using? 
I remember having troubles with the microsoft one, then I tried with JTDS and everything works fine.
But this was about a year ago, with other problem.



2009/10/17 Bill Tarr <javatestcase at yahoo.com>

Quick update.  No definitive progress, but some potential info that may lift the blame from JPA Persister.  
>
>I installed SQL 2008 Express locally, and my test case does not crash my DB there.  
>
>In addition, our DBA is seeing wierd behavior on our SQL Server since a .NET update was pushed down.  
>
>We rolled back the update, and will test against the same server with debugging on Monday.
>
>I'll be looking into Hibernate vs JPA Persistence this weekend.
>
>Thanks!
>
>
>
________________________________
From: Mauricio Salatino <salaboy at gmail.com>
>To: Rules Users List <rules-users at lists.jboss.org>
>Sent: Fri, October 16, 2009 8:51:45 AM 
>
>Subject: Re: [rules-users] [droolsflow] JPAVariablePersister Crashing SQL Server RPC?
>
>
>Great to hear that you are using it. 
>Obviously need some improvements. I will try to help you guys on that.
>Would be nice to activate the debugging option of MS SqlServer to see the queries that are being generated. If you have that information please let me know.
>Greetings.
>
>
>2009/10/16 Bill Tarr <javatestcase at yahoo.com>
>
>Hi Mauricio,
>>
>>I don't actually have a stack trace. Every time I've run the test, it has completed without errors exactly once.  
>>
>>There is nothing in the stack indicating anything bad happened, but immediately after SQL Server is unresponsive to any clients.
>>
>>As to Hibernate Mappings, you are ahead of me already.  
>>
>>I am currently testing with annotated JPA entities (for Claims and Role) which mirror my real Hibernate mapped entities.
>>
>>I've haven't found anything absolute on this, but think you CAN'T use Hibernate mappings within JPA.
>>
>>That means we will need a new Variable Persister, but presumably one similar to the JPA Persister.
>>
>>I'll be testing more today, as I'll can and let you know if my DBA can get any more info to see if SQL Server is telling us anything useful.
>>
>>Thanks!  And great work on the variable persister, the timing was perfect for us!
>>
>>Bill
>
>_______________________________________________
>rules-users mailing list
>rules-users at lists.jboss.org
>https://lists.jboss.org/mailman/listinfo/rules-users
>
>


-- 
- http://salaboy.wordpress.com
- http://www.jbug.com.ar
- Salatino "Salaboy" Mauricio -



      
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20091019/367727a6/attachment.html