[rules-users] Drools 5.3 partitioned rule base

[Mark Proctor]

On 02/03/2012 17:52, gboro54 wrote:
> Would you partition the KnowledgeBase or the Sessions? Additional would each
> Order being evaluated create a new session?
It depends on your problem and your data.

Mark
>
>
>
> gboro54 wrote
>> Could you elaborate on that a little more Mark?
>>
>>
>> Mark Proctor wrote
>>> Parition yourself ahead of time. Choose a key that is a true partition
>>> of your data, chose the number of partitions, create a kbase per
>>> partition and then hash on your inserted data to get the target kbase.
>>>
>>> Mark
>>> On 02/03/2012 16:23, gboro54 wrote:
>>>> We are writing a billing system using Drools to evaluate orders placed
>>>> during
>>>> the day(this is a month to date process which will run nightly and we
>>>> will
>>>> be bringing a real-time solution online later this year after we rewrite
>>>> the
>>>> existing). Base fees of these orders can happen in parallel and in no
>>>> way
>>>> affect one another, however we have price caps which do depend on the
>>>> order
>>>> in which the cap is applied to the order(for certain conditions on an
>>>> order
>>>> a surcharge may be created if a cap is applied). My past experience will
>>>> Drools has been it is quicker to do as much evaluation up front rather
>>>> then
>>>> loop of a list of Orders and fire one at a time. However my experience
>>>> in
>>>> running Drools with this load is limited(by the end of the month we will
>>>> have to process 15 million orders).  I am open to suggestions on the
>>>> best
>>>> way to do this. Additionally orders are reprocessed each night as orders
>>>> from a current day may affect the pricing of an order from previous
>>>> days(i.e
>>>> a tier rate may apply, etc.)
>>>>
>>>>
>>>> On a side note I found that the issue is a NPE exception one of my rules
>>>> which only occurs if I partition the rule base(I am not sure why this
>>>> would
>>>> make a difference).
>>>>
>>>> --
>>>> View this message in context:
>>>> http://drools.46999.n3.nabble.com/Drools-5-3-partitioned-rule-base-tp3793558p3793979.html
>>>> Sent from the Drools: User forum mailing list archive at Nabble.com.
>>>> _______________________________________________
>>>> rules-users mailing list
>>>> rules-users at .jboss
>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at .jboss
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>
> --
> View this message in context: http://drools.46999.n3.nabble.com/Drools-5-3-partitioned-rule-base-tp3793558p3794233.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