Rust-based evaluator service can run a function call in the appropriate executor and return a result
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	cmassaro
	Jul 11 2025, 4:00 PM

Description

Desired behavior/Acceptance criteria (returned value, expected error, performance expectations, etc.)

a single REST request to the new service should run the requested function and return a Z22 in its response

Completion checklist

Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Back-end_Task/Bug_completion_checklist

Details

Related Changes in Gerrit:

	Subject	Repo	Branch	Lines +/-
	wikifunctions: Upgrade evaluators from 2025-08-20-203801 to 2025-08-26-213211	operations/deployment-charts	master	+2 -2

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Related Changes in GitLab:

	Title	Reference	Author	Source Branch	Dest Branch
	Let Rust evaluator execute functions (at least in certain cases)	repos/abstract-wiki/wikifunctions/function-evaluator!381	apine	apine-get-rusty	main

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Status	Assigned	Task
Open	Jdforrester-WMF	T402957 [26Q2] Rust evaluator in production
Open	None	T382433 Get the Rust prototype of the function-evaluator's executors into a state where it could be deployed
Open	cmassaro	T343720 If we create a working evaluator service in Rust, we can measure its performance and stability characteristics and plan to productionize it in a subsequent quarter
Resolved	cmassaro	T399344 Rust-based evaluator is at feature parity with the current Node-based one
Resolved	cmassaro	T399322 Rust-based evaluator service should maintain a pool of ready executors
Resolved	cmassaro	T399323 Rust-based evaluator can add all currently-supported metadata
Resolved	ecarg	T399345 Rust-based evaluator implements a timeout
Resolved	ecarg	T399346 Rust-based evaluator implements rate limiting
Resolved	cmassaro	T399321 Rust-based evaluator service can run a function call in the appropriate executor and return a result
Resolved	cmassaro	T400820 Use dedicated abstract-wikipeda-rust image in test-rust (and, eventually, other Rust images)

Event Timeline

cmassaro created this task.Jul 11 2025, 4:00 PM

cmassaro removed projects: WikiLambda, function-orchestrator.

cmassaro added a subtask: T399320: Rust-based service should accept all current versions of the evaluator request format.Jul 11 2025, 4:02 PM

cmassaro renamed this task from New service can run a function call in the appropriate executor and return a result to Rust-based evaluator service can run a function call in the appropriate executor and return a result.Jul 11 2025, 10:27 PM

cmassaro added a parent task: T399344: Rust-based evaluator is at feature parity with the current Node-based one.Jul 11 2025, 10:30 PM

cmassaro added parent tasks: T399345: Rust-based evaluator implements a timeout, T399323: Rust-based evaluator can add all currently-supported metadata, T399322: Rust-based evaluator service should maintain a pool of ready executors.Jul 11 2025, 10:37 PM

cmassaro added a parent task: T399346: Rust-based evaluator implements rate limiting.

DSantamaria triaged this task as Medium priority.Jul 16 2025, 2:05 PM

DSantamaria edited projects, added Abstract Wikipedia team (26Q1 (Jul–Sep)), Essential-Work; removed Abstract Wikipedia team.

DSantamaria moved this task from Incoming to Ready on the Abstract Wikipedia team (26Q1 (Jul–Sep)) board.

Jdforrester-WMF added a subtask: T400820: Use dedicated abstract-wikipeda-rust image in test-rust (and, eventually, other Rust images).Jul 30 2025, 3:47 PM

Per recent discussion (and per the task tree!), this is the most important next step in this work.

In T399321#11051207, @Jdforrester-WMF wrote:

Per recent discussion (and per the task tree!), this is the most important next step in this work.

Good point; I'll grab it since I started messing with this last week.

Jdforrester-WMF changed the status of subtask T399320: Rust-based service should accept all current versions of the evaluator request format from Open to In Progress.Aug 21 2025, 3:40 PM

apine updated https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-evaluator/-/merge_requests/381

Let Rust evaluator execute functions (at least in certain cases)

cmassaro removed a subtask: T399320: Rust-based service should accept all current versions of the evaluator request format.Aug 26 2025, 1:56 PM

ecarg merged https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-evaluator/-/merge_requests/381

Let Rust evaluator execute functions (at least in certain cases)

cmassaro changed the task status from Open to In Progress.Aug 26 2025, 10:11 PM

cmassaro moved this task from Ready to Ready to deploy on the Abstract Wikipedia team (26Q1 (Jul–Sep)) board.

Change #1182534 had a related patch set uploaded (by Jforrester; author: Jforrester):

[operations/deployment-charts@master] wikifunctions: Upgrade evaluators from 2025-08-20-203801 to 2025-08-26-213211

https://gerrit.wikimedia.org/r/1182534

gerritbot added a project: Patch-For-Review.Aug 27 2025, 12:46 PM

Change #1182534 merged by jenkins-bot:

[operations/deployment-charts@master] wikifunctions: Upgrade evaluators from 2025-08-20-203801 to 2025-08-26-213211

https://gerrit.wikimedia.org/r/1182534

Jdforrester-WMF moved this task from Ready to deploy to Needs Sign-off on the Abstract Wikipedia team (26Q1 (Jul–Sep)) board.Aug 27 2025, 2:33 PM

cmassaro closed this task as Resolved.Aug 27 2025, 3:48 PM

ecarg mentioned this in rMSFE51f841c5b4fc: Let Rust evaluator execute functions (at least in certain cases).Oct 3 2025, 9:45 AM

Rust-based evaluator service can run a function call in the appropriate executor and return a resultClosed, ResolvedPublicActions

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Description

Completion checklist

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Rust-based evaluator service can run a function call in the appropriate executor and return a result
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