Z101 and Z104 now result in an error causing temporary failure of most Abstract Wikipedia content
Closed, ResolvedPublicBUG REPORT
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	GrounderUK
	Wed, Mar 25, 10:30 PM

Description

Presumably v2 related: compositions calling Z101 and Z104 now fail. I’m working through them to sort them out, but there’s nothing I can do about Types that specify this function as the validator.

Just for information. Will change to Bug report with more information if any bad behaviour seems related.

Presumably other validators too?

Report of downstream disruption

It seems to me that integration testing should have identified that most AW content would start breaking. For both performance and resilience, we should urgently consider the site’s critical dependency on Z14310 and Z13318 and (probably) replace the combination with a built-in, possibly folding in a more efficient equivalent of Z14294, which does not scale well.

Re-classifying as Bug report.

Related Objects
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Status	Subtype	Assigned	Task
Resolved		cmassaro	T412953 Create a composition interpreter to improve performance
In Progress		cmassaro	T418887 Collect and decide on whether and how to fix community-experienced changes with the v2 orchestrator
Resolved	BUG REPORT	cmassaro	T421322 Z101 and Z104 now result in an error causing temporary failure of most Abstract Wikipedia content

Event Timeline

GrounderUK created this task.Wed, Mar 25, 10:30 PM

GrounderUK renamed this task from Z101 now results in an error to Z101 and Z104 now result in an error.Thu, Mar 26, 12:26 AM

GrounderUK updated the task description. (Show Details)

GrounderUK renamed this task from Z101 and Z104 now result in an error to Z101 and Z104 now result in an error causing temporary failure of most Abstract Wikipedia content.Thu, Mar 26, 9:07 AM

GrounderUK updated the task description. (Show Details)

GrounderUK changed the subtype of this task from "Task" to "Bug Report".

cmassaro moved this task from Incoming to Ready to deploy on the Abstract Wikipedia team (26Q3 (Jan–Mar)) board.Fri, Mar 27, 6:17 PM

Jdforrester-WMF removed a project: MW-1.46-notes (1.46.0-wmf.20; 2026-03-17).Fri, Mar 27, 6:42 PM

Jdforrester-WMF changed the task status from Open to In Progress.Mon, Mar 30, 11:58 AM

Jdforrester-WMF triaged this task as Medium priority.

Jdforrester-WMF closed this task as Resolved.Wed, Apr 1, 2:39 PM

Jdforrester-WMF moved this task from Ready to deploy to Needs Sign-off on the Abstract Wikipedia team (26Q3 (Jan–Mar)) board.