Issue with caching Drools KnowledgeBase in memory in a web application

[Gururaja Shabada]

Hi,

We are working on Drools 5.5 and we are creating knowledgebase from knowledge agent on application startup and storing it in context. (servlet context)

(We even tried creating the knowledgebase as singleton)

For every request we pass the fact(the object that we create for every req)  into knowledgbase and get the rules applied on this object . The issue we are facing is rules are getting skipped even with matched data sometimes.

The same rule gets fired when we create the knowledgBase from reading drl files again.

Any help on this is highly appropriated.

thanks

Guru

[Davide Sottara]

It's possibly a constraint jitting issue, we'd need a reproducer, in alternative you'll have to try a newer version like 5.6 (relatively easy) or 6.x (possibly less straightforward)

As a side note, how is the Knowledge Agent configured? Do you ever try to update the KB?

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