40901d8ad3
All acceptance criteria already met: - Sizing table reproduced from plan §14.7 - Redis memory accounting paragraph included - Worked example for ≤200 GB tier - Links from README.md and production.md The sizing guide is THE artifact operators need on day one. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
27 lines
1.4 KiB
Markdown
27 lines
1.4 KiB
Markdown
# P6.9: Deployment Sizing Matrix (bf-7r59)
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## Status: Already Complete
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All acceptance criteria verified:
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1. **Sizing table reproduced** - `docs/horizontal-scaling/sizing.md` contains the 5-row matrix from plan §14.7
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2. **Redis memory accounting** - Paragraph documenting ~20 MB per 10k active IPs for search UI rate-limit buckets
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3. **Worked example** - ≤ 200 GB / ≤ 5 k QPS tier with memory budget (§14.2) and QPS (§14.3) validation
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4. **README.md link** - Line 89 links to sizing guide in "Production deployment" subsection
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5. **production.md link** - Lines 7, 48, and 186 link to sizing guide
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## Content Summary
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The sizing matrix provides operators with:
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| Corpus | Peak QPS | Orchestrator pods | Task store |
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|--------|----------|-------------------|------------|
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| ≤ 10 GB | ≤ 500 | 2 (HA) | Redis (or SQLite if replicas=1) |
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| ≤ 50 GB | ≤ 2 k | 2–4 (HPA) | Redis |
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| ≤ 200 GB | ≤ 5 k | 4–8 (HPA) | Redis |
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| ≤ 1 TB | ≤ 20 k | 8–12 (HPA) | Redis |
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| ≤ 5 TB | ≤ 100 k | 12–24 (HPA) | Redis (clustered or Sentinel) |
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Key insight: Orchestrator count scales with *query throughput*; Meilisearch node count scales with *corpus size* and replication factor. These are orthogonal axes.
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Redis backs shared state for idempotency, session pinning, alias cache, job queue, leader lease, CDC overflow, and search UI rate-limit buckets (~20 MB per 10k active IPs).
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