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Check rule conditions serially instead of in parallel

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#271 11 comments 3 reactions 0 assignees View on GitHub

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
javascript
Domain
backend

Research direction

Start by reviewing how the rules engine schedules rule conditions and how priority is applied to rules and facts; the issue names no files or tests. Determine how condition consumers can request serial evaluation, and verify that decomposed transactional facts no longer attempt to use the same transaction simultaneously.

Written by the indexing model from the issue text.

Description

We're running into issues where our facts are based on transactional access to a database. When we try to properly decompose our rules into multiple facts, we hit problems where the same transaction is trying to be used simultaneously because the rules engine appears to process facts in parallel by default.

I know there's a way to set priority on rules and facts which should make them run serially. The issue with this approach Is that is appears to be declarative on the fact itself and not on the user of the fact when constructing rule conditions. This makes it hard to use when you may want to decompose rule conditions in different order but still have them run serially instead of in parallel.

Dominant language
JavaScript
Stars
3.1k
Forks
507
PR merge metrics
No merged PRs in 30d

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