From f7a2a9d8a891241b4600b4c27696a6abcccfb97a Mon Sep 17 00:00:00 2001 From: PSBigBig Date: Tue, 29 Jul 2025 19:44:40 +0800 Subject: [PATCH] Update deployment-deadlock.md --- ProblemMap/deployment-deadlock.md | 140 ++++++++++++++++++++++++++++++ 1 file changed, 140 insertions(+) diff --git a/ProblemMap/deployment-deadlock.md b/ProblemMap/deployment-deadlock.md index 8b137891..b7a30d97 100644 --- a/ProblemMap/deployment-deadlock.md +++ b/ProblemMap/deployment-deadlock.md @@ -1 +1,141 @@ +# 📒 Deployment‑Deadlock Problem Map + +Some AI stacks *freeze in place* when two or more services depend on each +other’s side‑effects to finish booting: + +* Vector DB waits for schema migration → + Migrator waits for DB “ready” flag (circular) +* RAG ingester waits for retriever endpoint → + Retriever waits for populated index (circular) +* Agent A publishes a topic that Agent B subscribes to — + but Agent B must ack before Agent A continues (stalemate) + +WFGY resolves these **deployment deadlocks** with dependency graphs, semantic +ping chains, and BBCR timeouts that break the loop. + +--- + +## 🚨 Classic Deadlock Loops + +| Loop Pattern | Real‑World Fallout | +| --------------------------------------- | ---------------------------------------- | +| **DB ↔ Migrator** | Migrations never apply; API 502 forever | +| **Index Build ↔ Retriever health‑check** | Ingestion hangs; queries return 404 | +| **Agent A ↔ Agent B ack chain** | Task queue stalls; CPU idles at 0 % | +| **Secrets Store ↔ App init** | Containers restart endlessly | + +--- + +## 🛡️ WFGY Deadlock Breakers + +| Loop Pattern | Guard Module | Remedy | Status | +| ------------------------- | ----------------------- | ---------------------------------------- | ------ | +| DB–Migrator | **Dependency Graph** | Topo‑sort tasks; migrator forced first | ✅ Stable | +| Index–Retriever | **Ping Chain** | Synthetic “warm” doc until real ingest | ⚠️ Beta | +| Agent ack loop | **BBCR Timeout** | Auto‑abort & replay with back‑off | ✅ Stable | +| Secrets race | **Boot Checkpoint** | Wait‑on‑secret with exponential delay | 🛠 Planned | + +--- + +## 📝 How It Works + +1. **Dependency Graph** + Services declare `needs:` edges in `wgfy.yaml`. + WFGY topologically sorts and starts them in safe order. + +2. **Ping Chain** + Creates a synthetic resource (tiny doc, dummy secret) that satisfies + downstream health‑checks, then swaps once the *real* resource is ready. + +3. **BBCR Timeout** + If a health probe exceeds `deadlock_timeout` (default = 120 s) WFGY aborts + the loop, logs a graph diff, and optionally retries with jitter. + +4. **Boot Checkpoint** *(shared module)* + Guards secrets or config maps so apps don’t boot until keys exist. + +--- + +## ✍️ Demo — Index ↔ Retriever Deadlock + +```txt +⏳ retriever‑svc waiting for index (0/1 ready) +⏳ index‑builder waiting for retriever ping (0 docs) + +WFGY Deadlock Monitor: +• Cycle detected: index‑builder ⇆ retriever‑svc +• Injecting warm‑doc workaround … OK +• retriever‑svc ready (1/1) delta = 12 s +• index‑builder ingested 120 K vectors +• warm‑doc deleted — live traffic enabled ✅ +```` + +--- + +## 🗺️ Module Cheat‑Sheet + +| Module | Role | +| -------------------- | ------------------------------------ | +| **Dependency Graph** | Topo‑sort service order | +| **Ping Chain** | Synthetic resource break‑loop | +| **BBCR Timeout** | Abort & retry long waits | +| **Boot Checkpoint** | Shared boot guard for secrets/config | + +--- + +## 📊 Implementation Status + +| Feature | State | +| --------------------------- | ---------- | +| Topo‑sort deploy graph | ✅ Stable | +| Synthetic warm‑doc injector | ⚠️ Beta | +| BBCR deadlock timeout | ✅ Stable | +| Secrets boot guard | 🛠 Planned | + +--- + +## 📝 Tips & Limits + +* Keep cycles visible: run `wgfy graph viz` to spot latent loops. +* Tune `deadlock_timeout` per environment; GPUs often need longer. +* For cross‑cloud deployments, enable `ping_chain.remote = true`. + +--- + +### 🔗 Quick‑Start Downloads (60 sec) + +| Tool | Link | 3‑Step Setup | +| -------------------------- | --------------------------------------------------- | --------------------------------------------------------------------------------- | +| **WFGY 1.0 PDF** | [Engine Paper](https://zenodo.org/records/15630969) | 1️⃣ Download · 2️⃣ Upload to LLM · 3️⃣ Ask “Answer using WFGY + \” | +| **TXT OS (plain‑text OS)** | [TXTOS.txt](https://zenodo.org/records/15788557) | 1️⃣ Download · 2️⃣ Paste in any LLM chat · 3️⃣ Type “hello world” — OS boots | + +--- + +↩︎ [Back to Problem Index](../README.md) + +
+ +> GitHub stars ⭐ Help reach **10 000 stars** by 2025‑09‑01 to unlock Engine 2.0 for everyone. +> **[Star WFGY on GitHub](https://github.com/onestardao/WFGY)** + +> 👑 **Early Stargazers:** +> [See the Hall of Fame »](https://github.com/onestardao/WFGY/tree/main/stargazers) + +
+ +[![WFGY Main](https://img.shields.io/badge/WFGY-Main-red?style=flat-square)](https://github.com/onestardao/WFGY) +  +[![TXT OS](https://img.shields.io/badge/TXT%20OS-Reasoning%20OS-orange?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS) +  +[![Blah](https://img.shields.io/badge/Blah-Semantic%20Embed-yellow?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlahBlahBlah) +  +[![Blot](https://img.shields.io/badge/Blot-Persona%20Core-green?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlotBlotBlot) +  +[![Bloc](https://img.shields.io/badge/Bloc-Reasoning%20Compiler-blue?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlocBlocBloc) +  +[![Blur](https://img.shields.io/badge/Blur-Text2Image%20Engine-navy?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlurBlurBlur) +  +[![Blow](https://img.shields.io/badge/Blow-Game%20Logic-purple?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlowBlowBlow) + +