Thanks Greg but I have tried that, creating a newstatefulsession is slowish, taking around 800 milliseconds to do.  When milliseconds count 800 is too long.  It's faster to do the retracts, they take about 400 millis.

Someone showed a command or configuration recently that tells workingmemory not to re-eval the rules.  I'm looking for that switch or something equivalent.

Our system is a live transaction system.  The trans need to be completed and ready for the next one in under a second.

Scott


On Wed, Sep 16, 2009 at 2:06 PM, Greg Barton <greg_barton@yahoo.com> wrote:
Dispose of your session and create another.

--- On Wed, 9/16/09, Scott Burrows <scottjburrows@gmail.com> wrote:

> From: Scott Burrows <scottjburrows@gmail.com>
> Subject: [rules-users] How to prevent activation list creation on retracts
> To: "Rules Users List" <rules-users@lists.jboss.org>
> Date: Wednesday, September 16, 2009, 12:50 PM
> I think this question was asked recently
> but I cant seem to find it.
>
> Using 4.0.7
>
> I have a large number of facts I need to retract from
> working memory after all rules have been processed
> (transaction is completed) so I can insert new facts for the
> next transaction.  Milliseconds count.
>
>
> I know that drools recalc's which rules are eligible to
> be run after each retraction.  Since all facts are being
> removed its unneeded processing and time that could be
> saved.
>
> How can I tell drools that until I tell it otherwise do not
> re-evaluate the rules to save time?
>
>
> Scott
>
>
>
>
> -----Inline Attachment Follows-----
>
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