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Question

I'm getting an error that says 'too many new instances created: 503". I'm doing a lot of lookups in this logic element so I think this has something to do with it.

Answer

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503 is the number of instances created. The number comes from the application xml XML config file: 

Code Block
<formulaEngine>     <script>       <maxInstances>500</maxInstances>       <timeoutInSec>5</timeoutInSec>             <findMaxResults>200</findMaxResults>           </script>   </formulaEngine>

The maxInstances is set to 500 by default. 

Do you think it would fix the problem to call some of the lookups in a different element? Is 500 the max number of instances for one element or the entire logic?

It seems that it is per formula (those variables live in instances of the class named FormulaSandbox). 

Is there a way to increase or remove this limit?

We've allowed ourselves quite a bit of leeway in dedicated instances, but in In a shared instance we do have need to limit the resource usage in a formula. The limit is per script, i.e. formula element, so spreading out logic would help. The first thing to do would be to review the code though.As as a workaround, try to spread out the logic between more elements. 

If you encounter many instances of a Date, you can consider trying these code replacements:

• api.parseDate(strdate) → Date.parse(DATE_FORMAT, strDate)

• def formatter = new SimpleDateFormat(DATE_FORMAT); formatter.format(date) -> date.format(DATE_FORMAT)

Optimization Segmentation Logics

  <maxInstancesOverrides>
    <net.pricefx.formulaengine.optimization.ModelFilterTreesContextReadWrite.NodeSpec
    >100000</net.pricefx.formulaengine.optimization.ModelFilterTreesContextReadWrite.NodeSpec>
  </maxInstancesOverrides>