SNOW-CSA Application Rules, ACL and Notifications Practice Question
A business rule set to run 'async' is supposed to update a large number of child records. The administrator notices that the updates are not being applied consistently. What is the most likely reason?
⚠ Common exam trap
Watch out — candidates often confuse 'async' execution with simple timing or thread limits, overlooking the fundamental concurrency issue of race conditions in asynchronous processing.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The async queue processes multiple instances simultaneously, causing race conditions
When a business rule is set to run 'async', it executes asynchronously via the system's queue. If the business rule updates a large number of child records, multiple instances of the same async business rule can be processed simultaneously by different queue workers. This concurrency can lead to race conditions, where one instance reads stale data or overwrites changes made by another instance, resulting in inconsistent updates.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The business rule condition is incorrect
Why it's wrong here
Condition would prevent execution entirely, not cause inconsistency.
- ✗
The system property 'glide.sys.schedulers.max_threads' is set too low
Why it's wrong here
This would affect performance, not inconsistency.
- ✓
The async queue processes multiple instances simultaneously, causing race conditions
Why this is correct
Async rules are queued and may run in parallel, leading to race conditions.
- ✗
The business rule is running 'before' instead of 'after'
Why it's wrong here
Async rules can be before or after; consistency is more about concurrency.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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