🧭 Quick Return to Map
You are in a sub-page of OpsDeploy.
To reorient, go back here:
- OpsDeploy — operations automation and deployment pipelines
- WFGY Global Fix Map — main Emergency Room, 300+ structured fixes
- WFGY Problem Map 1.0 — 16 reproducible failure modes
Think of this page as a desk within a ward.
If you need the full triage and all prescriptions, return to the Emergency Room lobby.
Plan and execute schema or storage migrations with zero data loss and predictable retrieval quality. Applies to primary OLTP stores, vector stores, and search backends.
- Boot order and deploy traps: Bootstrap Ordering, Deployment Deadlock, Pre-Deploy Collapse
- Vector index lifecycle: Vector Index Build & Swap
- Version locks: Version Pinning & Model Lock
- Backpressure and retries: Rate Limit Backpressure, Retry Backoff
- Data loss equals 0 verified by row counts and checksums
- Backfill completeness equals 100 percent with reconciliation pass
- ΔS drift between pre and post retrieval ≤ 0.02 on a gold set
- λ remains convergent across two seeds
- Cutover within the planned window with a reversible path
- Preflight
Freeze schema in source, create target with explicit charset, collations, index types, vector metric, analyzer. Verify privileges and connection pools. - Dual-write flag
Enable dual writes with idempotency keys. Recordop_id,source_rev,target_rev,index_hash. - Backfill
Copy in batches with capped concurrency. Validate counts and checksums per table or collection. - Shadow reads
Use Shadow Traffic Mirroring to compare answers and latency. - Cutover
Flip read source after a clean soak. Keep dual writes for a short tail. - Rollback plan
Document exact steps and TTL for the rollback window with checkpoints.
- Contracts: protect schemas with Data Contracts so producers and consumers fail fast.
- Consistency: validate referential and vector invariants after each batch.
- Indexing: for vectors rebuild offline and swap atomically. See Vector Index Build & Swap.
- Traffic: rate limit heavy stages and prefer maintenance windows.
- Metrics: log
migrated_rows,checksum_ok,dual_write_fail,ΔS_diff,λ_state,cutover_ms.
- Metric mismatch after cutover produces wrong-meaning hits
→ confirm vector metric and normalization. See Embedding ≠ Semantic. - Read timeouts during backfill
→ isolate reader replicas or use read-only mode during the heaviest phase. See Read-Only Mode. - Dual-write divergence
→ enforce idempotency keys and reconcile with drift queries. See Idempotency & Dedupe.
Abort and rollback if data checksums diverge or ΔS drift exceeds 0.05 on the gold set for longer than 15 minutes. Publish an incident update and run a focused postmortem with Postmortem & Regression Tests.
| Tool | Link | 3-Step Setup |
|---|---|---|
| WFGY 1.0 PDF | Engine Paper | 1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + <your question>” |
| TXT OS (plain-text OS) | TXTOS.txt | 1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly |
| Layer | Page | What it’s for |
|---|---|---|
| ⭐ Proof | WFGY Recognition Map | External citations, integrations, and ecosystem proof |
| ⚙️ Engine | WFGY 1.0 | Original PDF tension engine and early logic sketch (legacy reference) |
| ⚙️ Engine | WFGY 2.0 | Production tension kernel for RAG and agent systems |
| ⚙️ Engine | WFGY 3.0 | TXT based Singularity tension engine (131 S class set) |
| 🗺️ Map | Problem Map 1.0 | Flagship 16 problem RAG failure taxonomy and fix map |
| 🗺️ Map | Problem Map 2.0 | Global Debug Card for RAG and agent pipeline diagnosis |
| 🗺️ Map | Problem Map 3.0 | Global AI troubleshooting atlas and failure pattern map |
| 🧰 App | TXT OS | .txt semantic OS with fast bootstrap |
| 🧰 App | Blah Blah Blah | Abstract and paradox Q&A built on TXT OS |
| 🧰 App | Blur Blur Blur | Text to image generation with semantic control |
| 🏡 Onboarding | Starter Village | Guided entry point for new users |
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