44 lines
1.9 KiB
Markdown
44 lines
1.9 KiB
Markdown
# 👨💻 Chief Developer Brief: Valhalla Architecture
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**To:** Lead Developer / CTO
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**From:** The Architect (AI)
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**Date:** v1.0.0 Release
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## 1. The Core Problem
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The original platform relied on a monolithic CMS (Directus) API.
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* **Bottleneck:** API latency (~200ms/req) and Rate Limits.
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* **Failure Mode:** If CMS crashes, SEO generation stops.
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* **Solution:** **God Mode (Valhalla)**.
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## 2. The Solution: Decoupled Autonomy
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God Mode is a **Parasitic Architecture**. It lives *alongside* the CMS but feeds directly from the Database.
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* **Read/Write:** Bypasses API. Uses `pg` connection pool.
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* **Schema Compliance:** We maintain strict adherence to the Directus schema, so the CMS never knows we were there.
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* **Performance:** Queries take <5ms. Throughput increased by 100x.
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## 3. Key Components
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### A. The Directus Shim (`src/lib/directus/client.ts`)
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A Translation Layer. It looks like the SDK to your React components, but behaves like a raw SQL driver.
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* *Benefit:* We ported the entire Admin UI (React) without rewriting a single component logic.
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### B. The Batch Processor (`src/lib/queue/BatchProcessor.ts`)
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A throttled queue engine backed by Redis.
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* *Capacity:* Handles 100,000 items without memory leaks.
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* *Logic:* chunks work -> executes concurrently -> waits -> repeats.
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* *Safety:* Pauses automatically if `SystemController` is toggled to Standby.
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### C. The Mechanic (`src/lib/db/mechanic.ts`)
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Built-in DBA tools.
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* `killLocks()`: Terminates stuck Postgres queries.
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* `vacuumAnalyze()`: Reclaims storage after massive batch deletes.
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## 4. Operational Risk
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**High Memory Usage:** We unlocked 16GB RAM for Node.js.
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* *Monitoring:* Use `/admin` -> "Command Station" to watch RAM usage.
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* *Control:* Hit the "DEACTIVATE ENGINE" button if RAM spikes >90%.
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## 5. Deployment
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* **Standard:** `docker-compose up -d` (Includes Redis).
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* **Ports:** `4321` (App), `6379` (Redis).
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* **Env:** Requires `DATABASE_URL` and `GOD_MODE_TOKEN`.
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