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摘要

TLDR;

How to handle 100k decision table rows in Drools? When handling large rows of decision tables， one of the pain points is performance. In this article, I prepared a prototype setup to a simple scenario to simulate the large decision table use case and provided three solutions to utilize drools ( a rules oriented application framwork). I would focus on the decision table rule execution performance.

For the sake of explanation of the core concept of problem solving, I prepared two decision tables 10k & 100k row data to simulate decision making procedure usage in rules application.

I provide 3 different solutions in three git branches, for coding fans, feel free to jump directly into the following github links and check the code.

• rule-template-solution — Use Rule Template + XLS raw format decision table
• precompile-rule-solution — Use Kie-Maven-Plugin to precompile Formatted Drools Decision Table
• row-as-fact-solution — Use Large row data as Fact instead of Rules as a solution;

If you are interested in this topic, let me guide you dive into the details. ```

Medium:

• https://medium.com/nerd-for-tech/how-to-run-100k-rules-in-drools-7b9308e75687
• https://medium.com/nerd-for-tech/how-to-handle-100k-rows-decision-table-in-drools-part2-2b7fb4de3532
• https://medium.com/nerd-for-tech/how-to-handle-100k-rows-decision-table-in-drools-part3-a185641a905e

Dzone:

https://dzone.com/articles/how-to-handle-100k-rows-decision-table-in-drools-1

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