Ciao, I'm another Drools user also encountering similar OutOfMemory errors with v6.0.1; I'm not 100% sure what is your issue specific to, but this may be related / of interest to your case: https://issues.jboss.org/browse/DROOLS-411

Hope this helps;

Ciao

MM

On Wed, Feb 19, 2014 at 8:20 AM, john poole <jdpoole@gmail.com> wrote:

I've converted some NurseRostering rules, which worked in Drools 5.50, to
OptaPlanner 6.0.1. While it works far better for the time it runs, it uses
up whatever memory I can give it (9GB) and then eventually crashes the GUI.

with:
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: GC
overhead limit exceeded

Is there a way to limit how much memory OptaPlanner uses? Or is it likely
that I'm just adding fact to the WorkingMemory in a way that wasn't a
problem in 5.5 but is a problem in 6.0?





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