<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">org.drools.StatefulSession has the async* methods, which are thread safe. I'm not sure if org.drools.runtime.StatefulKnowledgeSession.execute(Command<T> command) uses them behind the scenes, though.<br><br>--- On <b>Fri, 11/26/10, Wolfgang Laun <i><wolfgang.laun@gmail.com></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: Wolfgang Laun <wolfgang.laun@gmail.com><br>Subject: Re: [rules-users] StatefulKnowledgeSession.startProcess not thread-safe ?<br>To: "Rules Users List" <rules-users@lists.jboss.org><br>Date: Friday, November 26, 2010, 9:33 AM<br><br><div id="yiv269798697">2010/11/26 Esteban Aliverti <span dir="ltr"><<a rel="nofollow" ymailto="mailto:esteban.aliverti@gmail.com" target="_blank"
href="/mc/compose?to=esteban.aliverti@gmail.com">esteban.aliverti@gmail.com</a>></span><br><div class="yiv269798697gmail_quote"><blockquote class="yiv269798697gmail_quote" style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex;">
Are you using the same session? Sessions are not thread-safe in drools.<div><br></div></blockquote><div>Sessions not thread-safe? So how do I run x.fireUntilHalt() in one session and do insert() in other threads? Do I have to synchronize this myself?<br>
-W<br><br><br> </div><blockquote class="yiv269798697gmail_quote" style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex;"><div></div><div>Best, <br clear="all"><br>XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX<br>
<font color="#888888"><br>Esteban Aliverti<br>- Developer @ <a rel="nofollow" target="_blank" href="http://www.plugtree.com">http://www.plugtree.com </a><br>
- Blog @ <a rel="nofollow" target="_blank" href="http://ilesteban.wordpress.com">http://ilesteban.wordpress.com</a></font><div><div></div><div class="yiv269798697h5"><br>
<br><br><div class="yiv269798697gmail_quote">On Fri, Nov 26, 2010 at 12:12 PM, OptimusPrime <span dir="ltr"><<a rel="nofollow" ymailto="mailto:the.maxxxx@gmail.com" target="_blank" href="/mc/compose?to=the.maxxxx@gmail.com">the.maxxxx@gmail.com</a>></span> wrote:<br><blockquote class="yiv269798697gmail_quote" style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex;">
<br>
Hello,<br>
<br>
I wrote a micro benchmark in order to test the performance of Drools Flow<br>
5.1.0 in single and multi-threaded environments.<br>
<br>
And I noticed that, when 2 threads call startProcess() at the same time<br>
(Intel Core 2 Duo CPU), the returned process instance IDs are the same.<br>
<br>
I checked the code and it seems there is no locking mechanism in the<br>
org.drools.process.instance.impl.DefaultProcessInstanceManager class for the<br>
id creation.<br>
<br>
Is this a bug or am I missing something ?<br>
<br>
Thanks<br>
<font color="#888888">--<br>
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