[rules-users] Loading facts and memory size limits

[Greg Barton]

Considering that just an Object array of 10 million Objects consumes 115MB of memory, I think loading 1 billion facts will be stretching the limits of the VM all by itself. (and that's java.lang.Object with no fields...)

GreG

On Sep 8, 2010, at 10:31, bellios <carfid at gmail.com> wrote:


Hi all,
i have read the Documentation and the Drools book. I am developping an
application but i don't understand in my case how i can loading  a
1,000,000,000 facts (approx). 
At present I load all facts into a StatefulKnowledgeSession with a for-
cycle and I insert them into ksession ("ksession.insert(customer);")

The problem is the out of memory exception due the high memory 
requirements of facts.
How i can resolve it? There is another approach to 
facts loading into session? Can i integrate the loading with JPA/Hibernate 
frameworks?

Thanks in advance for any suggestion,
David

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