[jboss-jira] [JBoss JIRA] (DROOLS-1016) Too much memory consumption while running code on drools6.

[Mario Fusco (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13144793#comment-13144793 ] 

Mario Fusco commented on DROOLS-1016:
-------------------------------------

I'm not aware of any reason why the heap memory occupation of drools 6 should be more than the double of the one used by 5. It's hard to reply without a reproducer, can you provide one?

> Too much memory consumption while running code on drools6.
> ----------------------------------------------------------
>
>                 Key: DROOLS-1016
>                 URL: https://issues.jboss.org/browse/DROOLS-1016
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 6.2.0.Final
>            Reporter: Vivek Hingorani
>            Assignee: Mario Fusco
>
> The memory usage on drools6 is far more then drools 5. Can we run the drools6 code with Rete algorithm?	
> We recently migrated our project from Drools 5.3.0.Final version to Drools 6.2.0.Final version. In production we can see a significant increase in the memory consumption per node. we are using java 1.7. We increased the permgen space as well for drools6 from 0.5 GB to 1 GB but still the increase is too much. Is there any solution for the same.
> Drools5 memory usage was 0.5GB per node with 0.5GB permgen space
> Drools6 memory usage is 1.3GB per node with 1GB permgen space.
> Node here is a jvm as we are using oracle coherence.
> If further details are needed , let me know.



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