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From "Alex Boisvert" <boisv...@intalio.com>
Subject Re: Ode.war; persistency with MySQL using BEA Weblogic Server
Date Mon, 03 Dec 2007 16:18:53 GMT
Hi Vincent,

Following your tests, Matthieu made some changes/optimizations in the
OpenJPA persistence to avoid some table scans.  So you should see
performance improvements in your test when using the latest 1.1-branch code.

Depending on your requirements, you may also consider tweaking event
generation (
http://ode.apache.org/user-guide.html#UserGuide-ODEExecutionEvents) to
reduce the amount of data written to the database.


On 12/3/07, Vincent <pimousse76@gmail.com> wrote:
> Re Alex, Matthieu,
> 1) Thanks for having made me remind I forgot to specify the hardware I
> used ;o)
> I am working on a PC workstation - Pentium IV 2.8 Ghz - 2 GB RAM -
> Seagate Barracuda 7200rpm / 8.5ms - Win XP SP2 Pro.
> While running the tests, only WLS and MySQL were running, plus 2 or 3
> other softwares such as MySQL monitor or Windows Explorer.
> So I do think that neither the hardware not the software can be blamed
> for the results.
> 2) Except the changes I listed in my previous email, I did not modify
> anything to the ODE persistency mechanism. So I do think that OpenJPA
> was used.
> I attached to this email a zip file (mysql_queries.zip) containing the
> db traces collected while deploying and running the BPEL process,
> either in "in-memory" mode or "persisting" one.
> You'll notice that the request as well as the answer are persisted,
> but also a lot of events (I think that's what Matthieu was "looking
> for") / serialized java objects.
> NB: I can not publicly disclose the BPEL process that was used, sorry.
> ===============
> As requested, I opened a JIRA issue to post the WLSFactory, see
> http://issues.apache.org/jira/browse/ODE-216.
> Regards,
> Vincent

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