IVS-673: advance progress only after a task completes#307
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Prevents reporting 100% while instance completion still runs; atomic Least(F(progress)+inc, 100) update avoids the parallel-stage race.
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Problem
A file briefly shows "100% complete" while Instance Completion is still running.
Each subtask bumped
request.progressat its start, and the increments sum to exactly100 — so the final task tipped the bar to 100 before doing its work.
Fix
Advance
request.progressonly after a task's execution + processing finish. The updateis atomic —
Least(F("progress") + increment, 100)— to avoid the parallel-stageread-modify-write race. Failed tasks return early and don't advance progress.
Tests
tests_progress_update.py(3): progress advances only after work completes (fails on thepre-fix code with
10 != 0), clamps at 100, and a failed task doesn't advance.