[rules-users] Loading facts and memory size limits

[Greg Barton]

Do you have rules which relate two arbitrary customers together?  If the answer is no (and even a limited yes) then the problem can process customers in parallel.  That means you can break the processing down into smaller chunks and you don't need all customers in memory at once.

GreG

On Sep 9, 2010, at 3:27, bellios <carfid at gmail.com> wrote:


In my application I would to model the Customers-Sales domain and I thought
that drools could help me to express a set of rules to capture (or execute
on-demand) some "special" customers (e.g. take the customers which not
have/have bought some products of category X in the last 6 months).

To do this i'm loading the last 6 months sales into WM, afterwards on demand
i execute the rules. This process fails due the memory requirements. I
thought that Drools would use an hibernate/JPA/  or an incremental
mechanisms to load and process the facts.

@Swindells, Thomas: Do you think that it's the right approach? 

@Michael Anstis-2: I will try to study in deep the event
processing\CEP\streaming methods.
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