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43 lines
953 B
Markdown
43 lines
953 B
Markdown
# Queue Architecture
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## Decision
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Use Redis + RQ for V1 background jobs.
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## Why
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- Simple to run locally.
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- Easy to understand.
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- Good enough for raster processing and AI inference jobs.
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- Avoids Celery complexity in the first implementation.
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## Queue names
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- `default` for lightweight jobs.
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- `processing` for raster/vector processing.
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- `ai` for detection and segmentation.
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- `exports` for GeoJSON/report exports.
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## Job lifecycle
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1. API validates request.
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2. API creates `analysis_run` with status `queued`.
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3. API enqueues job with `analysis_run_id`.
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4. Worker sets status `running`.
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5. Worker writes artifacts and metrics.
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6. Worker sets status `completed` or `failed`.
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7. Frontend polls analysis run endpoint.
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## Failure handling
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Failures must store:
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- error code,
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- error message,
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- stack trace in internal logs only,
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- user-safe explanation.
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## No silent failures
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A failed job must be visible in the UI and queryable through the API.
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