Add ability to limit how many handlers are processed #114
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wesleykendall
approved these changes
Mar 12, 2025
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I think I see your general strategy here and it lgtm.
Do we actually use this rrule module anywhere outside Ambition? I dont see it in Houston or Data. There are already docs in Ambitions repo about this module too.
probably best to eventually consolidate this one too
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i think its used in houston but only for the lock which can be replaced with pglock very easily |
thinkt4nk
reviewed
Mar 12, 2025
| order_by=F('next_occurrence').asc() | ||
| ) | ||
| ).filter( | ||
| row_num=1 |
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so this is the part that restricts the rrule handler from processing more than one recurrence type in a single tick?
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this just ensures proper ordering in the event we are running with a limit, we want to prioritize a handler that has the most out of date occurrence
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Since we have so many instances using rrule now, the single task handler is timing out trying to process all handlers within the same transaction. This will give us the ability to limit how many instances are being processed at once and give us the ability to create tasks that will process much smaller bathes of recurrences.
This is not an ideal fix and would like to revisit this to propose a better more robust solution, but this is necessary given our current state.