[rules-users] is this kind of App right for DROOLS?

[Greg Barton]

A more scalable solution may be this: load all transactions from site A, start the rule engine in a separate thread using fireUntilHalt, then start inserting the transactions from site B.  The rules should retract transactions that match up.  (This way ony roughly half of the transactions are in memory at any given time and you can scale twice as large.)  Once all B transactions have been inserted, what you have left are all trasnactions that haven't been able to match.  You can save them off and reload them if you want to attempt matching them in the next round of processing.

--- On Wed, 4/15/09, Learning BRMS <rulerhawk at gmail.com> wrote:

> From: Learning BRMS <rulerhawk at gmail.com>
> Subject: Re: [rules-users] is this kind of App right for DROOLS?
> To: "Rules Users List" <rules-users at lists.jboss.org>
> Date: Wednesday, April 15, 2009, 4:34 PM
> Uaw.. very nice example, Greg... Thanks
> 
> I really like these Drools solution. 
> I will try your example with some more heavy class (with 40
> attributes)
> and expand the volume to 2.6 mi objects coming from a
> hibernate
> session.. 
> 
> I'll let you know.... I think I will enjoy those tests
> :-D
> 
> Thanks again
> 
> Kris
> 
> On Tue, 2009-04-14 at 23:01 -0700, Greg Barton wrote:
> > Yes, drools can handle this, and can handle the
> volume.  You may want to consider sequential mode execution,
> though.  See attached code for some simple matching rules. 
> In the example there's a 5% chance a transaction with a
> given id will not be present.  You could mock this up
> further to have rules to handle matching in the case a
> simple match isn't possible.
> > 
> > --- On Tue, 4/14/09, Learning BRMS
> <rulerhawk at gmail.com> wrote:
> > 
> > > From: Learning BRMS <rulerhawk at gmail.com>
> > > Subject: [rules-users] is this kind of App right
> for DROOLS?
> > > To: rules-users at lists.jboss.org
> > > Date: Tuesday, April 14, 2009, 10:43 PM
> > > Hi people...
> > > 
> > > I need to solve a problem on my work and I would
> hear from
> > > you if Drools
> > > could help us... 
> > > 
> > > I have two kinds of "connected by
> flatfile"
> > > systems that register our
> > > products selling transactions. 
> > > 
> > > We need to match dayly every selling transaction
> against
> > > both systems
> > > and to track any difference for every store. 
> > > 
> > > An transaction could happens on system A and not
> and system
> > > B and
> > > vice-versa and on different dates or times
> (connection
> > > problems could
> > > delay the synchronizing). 
> > > The transaction mostly have the same ID, but
> there are
> > > manual
> > > transactions too with no id only date and
> values... 
> > > 
> > > For each situation I have to fire a different
> action
> > > resolution (today
> > > we have humanhand resolution).
> > > 
> > > We should have an 1 million of transactions by
> day to
> > > process... 
> > > 
> > > Today we are using a sql script to do reports
> that will be
> > > humanly
> > > analyzed... 
> > > 
> > > I want to change this picture as soon as
> possible...
> > > 
> > > Could Drools help us with this kind of analyze,
> and support
> > > this volume
> > > of objects? 
> > > 
> > > How many objects could we have on working memory
> at same
> > > time for that
> > > match?
> > > 
> > > Thanks a lot for any comments
> > > 
> > > Kris
> > > 
> > > _______________________________________________
> > > rules-users mailing list
> > > rules-users at lists.jboss.org
> > >
> https://lists.jboss.org/mailman/listinfo/rules-users
> > 
> > 
> >       
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