OOM error when executing rules for decision table

[radeshdt]

I am executing rules for a decision table using statelessKieSession.

I have 500 objects and 10 rules for each object so total I have 10000 rules for one row. Rules will process for each row in the decision table. Currently after processing 50 rows i am getting OutOfMemory error.

Please check the image given below.

The class RightTupleImpl produces 6,624,789(23.4%) instances, which is a larger value. Is this a memory leak from drools ?

Any idea about this issue?

[nheron]

Hi,

What do the rules do ? if you insert a lot of objects in the then part, it can consume memory and the heap. At the end, you can have an OutOfMemory

You should first increase the heap size (4-5 GB or more ) and you will see what happens

Regards

Nicolas

[radeshdt]

I am not inserting much objects and I am retracting every object we insert. Increasing heap size is not a good solution for this I think, because in my case there may be more objects, not just 500.