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Consider only supporting a single-ZID fetch API in orchestrator
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Description

Description

We dedicate a fair amount of time and code complexity to supporting multi-ZID wikilambda_fetch queries, but we never actually make multi-ZID queries in the orchestrator. We should either commit to using that API or vastly simplify our code.

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

  • decide which to do
  • do it

Completion checklist

Event Timeline

Jdforrester-WMF subscribed.

Isn't the whole plan with batching dependent on this functionality?

Jdforrester-WMF lowered the priority of this task from Low to Lowest.Jun 16 2026, 9:39 PM

Aren't we already batching? Shouldn't we close this?