[rules-users] Drools 5.3 partitioned rule base

[Wolfgang Laun]

Starting a new thread (if that's what you mean by process) for reusing
an existing session to process another order is likely to create more
overhead
and it'll just make threads compete for this resources.

Multiple threads each dedicated to a single session object might be a
better way to go.

I don't see any benefit to make simple order facts into events just for the
sake
of making them expire automatically. There ought to be a well defined
state (or states) when processed orders are retracted by some rule.

-W


On 3 March 2012 14:11, gboro54 <gboro54 at gmail.com> wrote:

> Mark,
>
>  I really appreciate the help and think I have come to a solution. Let me
> know if this sounds reasonable.
> 1. We will continue to use jBPM to coordinate the rules and business logic
> that need to occur in calculating charges for orders. However we will work
> the process to only work on a per order level.
> 2. All orders are associated with accounts. We will keep one knowledgebase
> as the rule sets are the same and we will partition sessions by accounts.
> The flow will go as follows:
> a. If the session exists insert the order, start a new process instance and
> fire all rules
> b. If the session has not been created: create the session, insert all
> reference data that will be used by all orders in executions of the rule
> set, insert the order, start a process, and fire all rules. This session is
> then cached(via a hashmap more then likely)
> c. This process will be invoked asyn from the main thread, allowing us to
> control the multithreading
> 3. Orders will be treated as an event and will be set to expire in a
> certain
> amount of time, allowing us to mange the memory footprint of each session.
>
> Does this sound reasonable based on what you know of our usecase?
> Additionally with expiring Orders does this cause a reevaluation of the
> rules when the expiration occurs? The only other question I have is does
> the
> expiration clock start when no more activation's get created for the given
> event?
>
> Thanks again.
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/Drools-5-3-partitioned-rule-base-tp3793558p3795920.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20120303/068afc85/attachment.html