[rules-users] Memory issue with drools (using 10000 rules)

[Mark Proctor]

There is no out of the box way to improve that, beyond just partitioning 
your rulebases yourself.

If you would like to get involved in R&D we can do lazy network building 
and try pushing unused parts of the rule network to disk.

Mark
On 26/04/2011 12:05, Shebs, Liron wrote:
>
> Hello All,
>
> I'm working at HP Software R&D and we are considering using drools in 
> our product.
>
> Benchmarking tests showed that running 10,000 rules consumes 382mb.
>
> This is too high for our system requirements, and we would like to 
> know how we can improve it.
>
> Technical details:
>
> -Drools version: 5.1 with default configuration.
>
> -All rules look like this:
>
> rule "status-Fixed-Open"
>
>                when
>
>                              event : FieldChangedEvent(fieldName == 
> "status", oldValue == "Fixed");
>
>                              entity : Entity(entityType == "mock-entity");
>
>                              eval(((String) 
> entity.getFieldValue("status")).equals("Open"));
>
>                then
>
>                   do Something...
>
> end
>
> -Loading code:
>
> KnowledgeBuilder knowledgeBuilder = 
> KnowledgeBuilderFactory.newKnowledgeBuilder();
>
> for(all resources)
>
> {
>
> knowledgeBuilder.add(resource, ResourceType.DRL);
>
> }
>
> knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase();
>
> knowledgeBase.addKnowledgePackages(knowledgeBuilder.getKnowledgePackages());
>
> Any insights are most appreciated.
>
> Thank You,
>
> Liron, HP Software R&D
>
>
> _______________________________________________
> 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/20110426/2d31b9cd/attachment.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 2950 bytes
Desc: not available
Url : http://lists.jboss.org/pipermail/rules-users/attachments/20110426/2d31b9cd/attachment.jpe