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root bddbb22f03 gpu-self-heal: refresh to current fleet baseline and topology
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- Synced model assignments to 2026-07-17 swaps (ThinkingCap, HauhauCS QAT, Genesis Hermes V3)
- Added stable role-based aliases from gpu-fleet (gpu-dense, gpu-light, strix-moe)
- Updated benchmark baselines to live values (74.9/169.6/62.9 tok/s)
- Replaced router (port 9000) references with LiteLLM + direct routing
- Replaced Prometheus exporter rule with sidecar health probe
- Updated VRAM thresholds to match operational data (300/300/200 MB/h)
- Added response size limit (1MB) to prevent OOM crashes
- Added Lessons L5 (response size crash) and L6 (stable aliases)
- Removed deprecated Rules 11-12 (router-specific distribution balance)
2026-07-18 08:07:03 +00:00
6 changed files with 129 additions and 106 deletions
+26 -14
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@@ -9,9 +9,9 @@ description: >
gpu-dense, gpu-light. These never change — only the underlying model does.
Strix Halo: strix-moe → unsloth/Qwen3.6-35B-A3B-MTP (UD-Q4_K_M, 22GB).
RTX 5070: gemma-4-12b Q4_K_M → IQ4_NL + MTP draft (122 tok/s, 2x faster).
UPDATED 2026-07-17: Context reduced fleet-wide from 256K to 128K for stability.
Strix Halo model swapped to Genesis Hermes V3 APEX (LuffyTheFox, 24GB, uncensored,
UPDATED 2026-07-17: Strix Halo model swapped to Genesis Hermes V3 APEX (LuffyTheFox, 24GB, uncensored,
Hermes agent fine-tune, tensor repair, multimodal with mmproj).
RTX 5070 swapped to HauhauCS Gemma4-12B QAT Uncensored Balanced (Q4_K_M, 87 tok/s, 0/465 refusals).
Instability observed near 100K at 256K. 128K is the stable ceiling.
For larger context needs → fall back to external providers (deepseek).
VRAM headroom improved: RTX 3090 ~70%, RTX 5070 ~65%.
@@ -87,20 +87,32 @@ When a model is swapped on a GPU, ONLY the infrastructure layer changes — agen
| Alias | GPU | Current Model | Will Route To |
|-------|-----|---------------|---------------|
| `strix-moe` | Strix Halo (.15) | qwen3.6-35B-udq4 | Whatever runs on Strix Halo |
| `gpu-dense` | RTX 3090 (.8) | qwen3.6-27B-code | Whatever runs on RTX 3090 |
| `gpu-dense` | RTX 3090 (.8) | qwen3.6-27B-code (ThinkingCap) | Whatever runs on RTX 3090 |
| `gpu-light` | RTX 5070 (.110) | gemma-4-12b | Whatever runs on RTX 5070 |
**Backward compatibility**: Old model-specific names (qwen3.6-27B-code, gemma-4-12b, qwen3.6-35B-udq4) still work
but are deprecated for agent configs. Only the stable aliases survive model swaps.
## Current Model Assignments (2026-07-15)
## Current Model Assignments (2026-07-17)
| Model | GPU | Host | VRAM | Ctx | KV Cache | Parallel | Batch/Ubatch | Status |
|-------|-----|------|------|-----|----------|----------|-------------|--------|
| qwen3.6-27B-code (MTP) | RTX 3090 | .8 (llm-gpu) | ~17/24.6GB (70%) | **128K** | turbo4 | 2 | default | ✅ 63 tok/s |
| gemma-4-12b | RTX 5070 | .110 (ocu-llm) | ~7.8/12.2GB (65%) | 128K | q4_0 | 2 | 2048/1024 | ✅ healthy |
| qwen3.6-27B-code (ThinkingCap) | RTX 3090 | .8 (llm-gpu) | ~20.9/24.6GB (85%) | **128K** | turbo4 | 1 | default | ✅ 68 tok/s |
| gemma-4-12b (HauhauCS QAT) | RTX 5070 | .110 (ocu-llm) | ~10.0/12.2GB (82%) | 128K | q4_0 | 1 | 2048/1024 | ✅ 87 tok/s |
| Genesis Hermes V3 APEX | Strix Halo Vulkan | .15 (amdpve) | ~10GB/64GB | 128K | q4_0 | 1 | 4096/1024 | ✅ 65 tok/s |
> **RTX 5070 model swap (2026-07-17)**: Switched from `gemma-4-12b-it-IQ4_NL` (Unsloth, 191 tok/s)
> to `HauhauCS/Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced` (Q4_K_M QAT, 87 tok/s).
> Trade: 54% slower generation for QAT quality, 0/465 refusals, and agent-optimized tuning.
> MTP draft also swapped: Q8_0 (444MB) → tuned draft (242MB), saving 200MB VRAM.
> Role unchanged: gpu-light (vision, web extract, light auxiliary tasks).
> **RTX 3090 model swap (2026-07-17)**: Switched from `Qwopus3.6-27B-v2-MTP-Q4_K_M` (63 tok/s)
> to `bottlecapai/ThinkingCap-Qwen3.6-27B` (Q4_K_M QAT, 68 tok/s).
> RL-finetuned: 50% fewer thinking tokens, MMLU-Pro 0.85 vs 0.83 base.
> Self-spec MTP REQUIRED (crashes without it on turboquant build).
> Added vision via mmproj (0.9GB). VRAM 85%.
## Routing Configuration (LiteLLM — July 2026)
### syslog-auto Weighted Pool (Direct GPU — bypasses router)
@@ -118,16 +130,16 @@ Note: All syslog-auto entries route directly to GPUs with `api_key: not-needed`.
| Model | RPM Cap | Notes |
|-------|---------|-------|
| strix-moe (Hermes V3) | 40 | Tight cap — prevents Strix overload |
| qwen3.6-27B-code | 500 | High cap — primary workhorse |
| gemma-4-12b | 500 | High cap — IQ4_NL+MTP, 122 tok/s |
| qwen3.6-27B-code | 500 | ThinkingCap Q4_K_M + MTP self-spec + vision, 68 tok/s |
| gemma-4-12b | 500 | HauhauCS QAT Uncensored Balanced + MTP, 87 tok/s |
### Stable Aliases (for agent configs — never change)
| Alias | RPM Cap | Routes To | Purpose |
|-------|---------|-----------|---------|
| `strix-moe` | 40 | Strix Halo | Compression tasks (MoE models) |
| `gpu-dense` | 500 | RTX 3090 | Heavy reasoning |
| `gpu-light` | 500 | RTX 5070 | Vision, web extract, light tasks |
| `gpu-dense` | 500 | RTX 3090 (ThinkingCap) | Heavy reasoning, code gen, delegation |
| `gpu-light` | 500 | RTX 5070 (HauhauCS QAT) | Vision, web extract, light tasks |
### Fallback Chains
- gemma → qwen
@@ -249,8 +261,8 @@ If no SSH access, send Zulip DM via abiba-bot with vault update instructions.
- **LiteLLM /metrics**: Requires auth. Prometheus uses `/health/liveliness` as workaround.
- **VRAM (2026-07-15)**: RTX 3090 at ~17/24.6GB (~70%) with **128K context** (reduced from 256K 2026-07-17). RTX 5070 at ~7.8/12.2GB (~65%) with 128K context + MTP. Strix Halo at ~7GB/64GB.
- **RTX 3090 runs `--parallel 2`** with MTP draft (spec-type draft-mtp, spec-draft-n-max 2).
- **RTX 3090 config**: `-c 131072 -ctk turbo4 -ctv turbo4 --parallel 2 --flash-attn on --cont-batching --spec-type draft-mtp`. Context reduced to 128K (2026-07-17, was 256K). VRAM: ~70%. Service: `/home/llmuser/llama-wrapper.sh`.
- **RTX 5070 config (2026-07-15)**: Switched to IQ4_NL + MTP draft (Q8_0) at 128K context. Gen speed: 122 tok/s. VRAM: ~7.8/12.2GB (~65%). Service: `/home/llmuser/llama-wrapper.sh`. Config: `--model gemma-4-12b-it-IQ4_NL.gguf --spec-draft-model gemma-4-12b-it-Q8_0-MTP.gguf --spec-type draft-mtp --spec-draft-n-max 4 --ctx-size 131072`.
- **RTX 3090 config**: `-c 131072 -ctk turbo4 -ctv turbo4 --parallel 1 --flash-attn on --cont-batching --spec-type draft-mtp --spec-draft-n-max 4`. ThinkingCap Qwen3.6-27B Q4_K_M (15.7GB) + mmproj (0.9GB) + MTP self-spec. VRAM: ~85%. Service: `/home/llmuser/llama-wrapper.sh`. ⚠️ MTP REQUIRED for stability on this turboquant build — model segfaults without `--spec-type draft-mtp`. Outputs reasoning_content (hidden from agent, improves answer quality).
- **RTX 5070 config (2026-07-17)**: HauhauCS Gemma4-12B QAT Uncensored Balanced (Q4_K_M) + tuned MTP draft (242MB) at 128K context, single slot. Gen speed: 87 tok/s (vs 191 IQ4_NL). VRAM: ~10.0/12.2GB (~82%). Service: `/home/llmuser/llama-wrapper.sh`. Model: `Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced-Q4_K_M.gguf`, MTP: `mtp-gemma-4-12B-it.gguf`, mmproj: `mmproj-Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced-BF16.gguf`. Recommended sampling: temp 0.6, top_k 64, top_p 0.9, min_p 0.05, repeat_penalty 1.1.
- **LiteLLM timeout tuning (verified 2026-07-16 against `/opt/inference-harness/litellm_config.yaml` on CT 116)**: gemma-4-12b 120s, qwen3.6-27B-code 300s, qwen3.6-35B-udq4 300s, strix-moe 300s, syslog-auto routes all 300s. Nginx proxy_read_timeout: 600s. Global request_timeout: 300s.
- **Strix Halo GPU**: Vulkan is the working backend (ROCm/HIP path abandoned — HSA runtime blocked on Debian 13). Build at `/root/llama.cpp/build-vk/`, commit `4fc4ec5` (2026-07-01), ggml 0.15.3 shared-lib arch. Mesa RADV 25.0.7, KHR_coopmat fast path active. ~70 tok/s gen, 532 tok/s prompt. Service: `strix-server.service` on port 8080, model: `LuffyTheFox/Qwen3.6-35B-A3B-Uncensored-Genesis-Hermes-V3-GGUF` (APEX quant), alias `strix-moe`, 128K context, flash-attn + q4 KV, multimodal (mmproj loaded). Hermes agent fine-tune, tensor repair (SSM layers fixed via SVD), uncensored (0/465 refusals).
- **Port conflict detection (2026-07-05)**: All 3 GPU wrappers now detect ghost processes squatting port 8080 before starting. `.8` and `.110` use inline pre-start check in `llama-wrapper.sh`; `.15` uses `/usr/local/bin/port-cleanup.sh` ExecStartPre. Replaces the blanket `pkill -9 -x llama-server` on .15 which would kill ALL llama-server instances regardless of port. Ghost detection was the root cause of .8 crash-looping for 27+ restarts (stale pid 25836 squatting 8080 after OOM kill).
@@ -266,8 +278,8 @@ If no SSH access, send Zulip DM via abiba-bot with vault update instructions.
| GPU | Model | Gen tok/s | Prompt tok/s | Baseline | Context |
|-----|-------|-----------|--------------|----------|---------|
| RTX 3090 (.8) | qwen3.6-27B-code (MTP) | **63** | — | — | **128K** |
| RTX 5070 (.110) | gemma-4-12b (IQ4_NL+MTP) | **191** | — | — | **128K** |
| RTX 3090 (.8) | ThinkingCap-Qwen3.6-27B Q4_K_M | **68** | — | — | **128K** |
| RTX 5070 (.110) | HauhauCS QAT Uncensored Balanced | **87** | — | — | **128K** |
| Strix Halo (.15) | Genesis Hermes V3 APEX | **65** | 140 | — | **128K** |
Benchmarks from 2026-07-17. Strix Halo swapped to Genesis Hermes V3 APEX (LuffyTheFox). RTX 5070 MTP provides 2.7x speedup over pre-upgrade 70 tok/s.
+93 -69
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@@ -6,10 +6,15 @@ description: >
benchmarks, and predicts failures before they happen. Extends gpu-monitor
(v2.1.0) with active remediation rules, Prometheus metrics consumption,
VRAM trend analysis, and predictive alerting.
UPDATED 2026-07-18: Model assignments synced to 2026-07-17 swaps.
Router (port 9000) references replaced with direct GPU routing.
Benchmark baselines refreshed to live values.
Prometheus exporters removed — not deployed; fall back to direct sidecar probes.
Stable role-based aliases (strix-moe, gpu-dense, gpu-light) from gpu-fleet.
agent: abiba
depends_on:
- gpu-monitor.prose.md (live data source on .24:9100)
- gpu-fleet.prose.md (source of truth for topology)
- gpu-fleet.prose.md (source of truth for topology, aliases, model assignments)
---
## Maintains
@@ -22,8 +27,8 @@ depends_on:
## Requires
- gpu-monitor:function — Live fleet data from .24:9100/gpu-data
- Prometheus exporters on all 3 GPUs (:9400/metrics)
- gpu-monitor:function — Live fleet data from localhost:9100/gpu-data
- Direct sidecar probe access to all GPU hosts (:8080/health)
- SSH access to GPU hosts for restart operations
## Continuity
@@ -35,21 +40,37 @@ depends_on:
---
## Current Fleet Baseline (2026-07-18)
| Alias | GPU | Host | Model | VRAM | Ctx | tok/s | Role |
|-------|-----|------|-------|------|-----|-------|------|
| `gpu-dense` | RTX 3090 24GB | ct8 (.8:8080) | ThinkingCap Qwen3.6-27B Q4_K_M + MTP + vision | 21.6/24.6GB (88%) | 128K | 74.9 | Heavy reasoning, code gen |
| `gpu-light` | RTX 5070 12GB | ct110 (.110:8080) | HauhauCS Gemma4-12B QAT Q4_K_M + MTP draft | 10.1/12.2GB (83%) | 128K | 169.6 | Vision, web extract, light tasks |
| `strix-moe` | Strix Halo 64GB | ct15 (.15:8080) | Genesis Hermes V3 APEX (LuffyTheFox, 24GB) | ~10/64GB (16%) | 128K | 62.9 | Compression, summarization, long docs |
Key notes:
- All models use direct GPU routing via LiteLLM (`api_key: not-needed`). Router (port 9000) is deprecated and NOT in the inference path.
- Stable aliases (gpu-dense, gpu-light, strix-moe) from gpu-fleet are the canonical names for agent configs. Model-specific names still work but are deprecated.
- RTX 5070 tok/s is 2.3x faster than RTX 3090 for its model — gpu-light is the fastest endpoint. Route vision/web/light work there first.
- Strix Halo is 62.9 tok/s (89% of 70.5 baseline) — below optimal but stable. Check for competing workloads.
- RTX 3090 VRAM at 88% — within role-appropriate range (role = heavy reasoning, needs the headroom).
- RTX 5070 VRAM at 83% — role-appropriate for vision/web (smaller batch sizes).
## Remediation Rules
### Rule 1: GPU Temperature Critical (>85°C for >2 min)
- **Detect**: Any GPU temp >85°C sustained for 2+ consecutive polls
- **Fix**:
1. Reduce inference concurrency on that GPU (load-side cooling only — NO fan control)
2. Redirect new requests to cooler GPUs via LiteLLM fallback chains
2. Redirect new requests to cooler GPUs via LiteLLM fallback chains (gemma → qwen, qwen → gemma)
3. If all GPUs hot, alert about cooling infrastructure
- **Verify**: Temp drops below 80°C within 5 minutes
- **Escalate after**: 3 verification failures → Zulip alert
### Rule 2: VRAM Leak Detection (tiered by GPU capacity)
- **Detect**: VRAM growing at sustained rate over 6+ hour window
- RTX 3090 (24GB): ≥100MB/hour
- RTX 5070 (12GB): ≥50MB/hour
- RTX 3090 (24GB): ≥300MB/hour
- RTX 5070 (12GB): ≥300MB/hour
- Strix Halo (64GB UMA): ≥200MB/hour
- **Fix**:
1. Log VRAM snapshot with process list (nvidia-smi/rocm-smi + ps aux)
@@ -69,6 +90,9 @@ depends_on:
### Rule 4: Benchmark Regression (>20% drop)
- **Detect**: gen_tok_per_sec drops >20% below baseline over 3+ benchmarks
- RTX 3090 baseline: 74.8 tok/s → alert at <59.8 tok/s
- RTX 5070 baseline: 165.2 tok/s → alert at <132.2 tok/s
- Strix Halo baseline: 70.5 tok/s → alert at <56.4 tok/s
- **Fix**:
1. Check GPU utilization — if >90%, other process is competing
2. Check power limit — if throttled, restore to max
@@ -78,32 +102,31 @@ depends_on:
### Rule 5: Circuit Breaker Stuck Open
- **Detect**: Circuit breaker open >10 minutes with GPU reporting healthy
- **Note**: Router (port 9000) is deprecated. If circuit breakers are reported by gpu-monitor, they come from LiteLLM's internal tracking, not the old router.
- **Fix**:
1. Verify GPU /health returns 200
2. If GPU healthy, send 1 test inference
3. If test succeeds → reset circuit breaker via router API
4. 60s cooldown — if CB re-opens immediately, it was legitimate, do NOT re-reset
5. Max 1 auto-reset per GPU per hour
- **Verify**: CB closes, inference succeeds, CB stays closed for 60s+
- **Escalate after**: CB won't close after reset → router issue
1. Verify GPU /health returns 200 on direct port (:8080)
2. If GPU healthy, alert but do NOT reset via router API (deprecated)
3. Check LiteLLM health directly: http://192.168.68.116/litellm/health/liveliness
4. Restart LiteLLM container on CT 116 if circuit breakers are stuck
- **Verify**: LiteLLM returns healthy, circuit breaker clears within 60s
- **Escalate after**: LiteLLM restart doesn't clear → human investigation
### Rule 6: Strix Halo Unreachable
- **Detect**: Strix not responding — probe .15:8080 directly (firewall opened .24→.15)
- **Fix**:
1. SSH to .15 → check llama-server process
2. Restart llama-server if not running
3. Verify through both direct probe AND router
- **Verify**: Direct health probe returns 200, router reports Strix healthy
3. Verify through both direct probe AND LiteLLM health
- **Verify**: Direct health probe returns 200, LiteLLM reports model healthy
- **Escalate**: If host .15 itself is unreachable → infrastructure alert
### Rule 7: Prometheus Exporter Down
- **Detect**: Any GPU :9400/metrics unreachable for >2 polls
### Rule 7: GPU Data Source Unreachable (replaces old Prometheus rule)
- **Detect**: gpu-monitor endpoint (localhost:9100/gpu-data) or sidecar port (:8080) on any GPU unreachable for >2 polls
- **Fix**:
1. SSH to GPU host → check prometheus-exporter process
2. Restart exporter if dead
3. While exporter is down, fall back to nvidia-smi/rocm-smi direct probes
4. If exporter is running but unreachable → check firewall/host networking
- **Verify**: :9400/metrics returns 200
1. If gpu-monitor is down: restart systemd service `gpu-monitor.service` on this host
2. If sidecar is down: SSH to GPU host → check llama-server process → restart systemd service
3. Fall back to direct nvidia-smi/rocm-smi probe via SSH if all API paths fail
- **Verify**: gpu-monitor returns healthy + all sidecars reachable
- **Escalate after**: 3 failed restarts → networking issue
### Rule 8: Predictive Thermal Warning (two-tier)
@@ -117,29 +140,31 @@ depends_on:
- **Escalate**: If Tier 2 triggers and temp still rising after 5 min → possible hardware failure
### Rule 9: Context Window Optimization
- **Detect**: Benchmark tok/s vs baseline for each GPU at current context
- RTX 3090 (128K ctx, qwen3.6-27B-code): target 75+ tok/s — currently at baseline
- RTX 5070 (128K ctx, gemma-4-12b): target 76+ tok/s — optimal for vision/web role
- Strix Halo (128K ctx, strix-moe / qwen3.6-35B-udq4): target 70+ tok/s — currently above baseline
- **Detect**: Benchmark tok/s vs baseline for each GPU at current context (all 128K)
- RTX 3090 (128K ctx, ThinkingCap): baseline 74.8 tok/s — currently at 74.9 (100%)
- RTX 5070 (128K ctx, HauhauCS QAT): baseline 165.2 tok/s — currently at 169.6 (103%)
- Strix Halo (128K ctx, Genesis Hermes V3): baseline 70.5 tok/s — currently at 62.9 (89%)
- **Fix**:
- If tok/s > baseline → context has headroom, consider increasing
- If tok/s < 90% baseline → reduce context by 25% and retest
- If tok/s within 10% of baseline → optimal, no change
- Strix Halo at 89% of baseline → MONITOR but do not reduce yet (recent model swap may still be settling)
- **Verify**: Re-benchmark after context change, confirm within 10% of target
- **Escalate**: If context can't be adjusted without significant perf loss
### Rule 10: Workload Distribution Optimization
### Rule 10: Workload Distribution Optimization (updated 2026-07-18)
- **Detect**: GPU roles misaligned with hardware capabilities
- **Target distribution**:
- RTX 3090 (24GB, 128K, 75 tok/s) → Heavy reasoning, code gen, long conversations
- RTX 5070 (12GB, 128K, 76 tok/s) → Vision/image, web search, quick lightweight tasks
- Strix Halo (64GB, 128K, 72 tok/s) → Context compression, summarization, long docs
- RTX 3090 (gpu-dense, 24GB, 74.9 tok/s) → Heavy reasoning, code gen, long conversations (slowest per-token but largest context capacity). Weight: 0.55 (LiteLLM).
- RTX 5070 (gpu-light, 12GB, 169.6 tok/s) → Vision/image, web search, lightweight tasks (2.3x faster than 3090 per token). Weight: 0.15 (LiteLLM).
- Strix Halo (strix-moe, 64GB, 62.9 tok/s) → Context compression, summarization, long docs (MoE model). Weight: 0.30 (LiteLLM).
- **Note**: RTX 5070 is the fastest endpoint per token. Route high-volume, low-complexity work there first.
- **Fix**:
- Alert if any GPU is handling workload outside its designated role
- Recommend Hermes agent profile updates to match workload to GPU
- Recommend agent alias updates to match workload to GPU role (use stable aliases: gpu-dense, gpu-light, strix-moe)
- Track per-GPU request distribution via LiteLLM spend logs
- **Verify**: Each GPU's request pattern matches its designated role within 24h
- **Escalate**: If role mismatch persists >48h → agent profile audit needed
- **Escalate**: If role mismatch persists >48h → agent alias audit needed
---
@@ -148,7 +173,7 @@ depends_on:
```prose
-- Phase 1: Fetch live GPU data
let fleet = call gpu-monitor
endpoint: "http://192.168.68.24:9100/gpu-data"
endpoint: "http://localhost:9100/gpu-data"
-- Phase 2: Evaluate each GPU against remediation rules
let actions = []
@@ -164,27 +189,25 @@ for gpu in fleet.gpus:
-- Rule 4: Benchmark regression
let bench = fleet.benchmarks[gpu.hostname]
if bench.current_tok_sec < bench.baseline_tok_sec * 0.8:
if bench.current_tok_s < bench.baseline_tok_s * 0.8:
push actions apply-benchmark-fix(gpu, bench)
-- Rule 3: Model stuck
for model in fleet.router.available_models:
for model in fleet.summary.available_models:
if model.consecutive_timeouts >= 3:
push actions apply-model-restart(model)
-- Rule 5: Circuit breaker
for cb in fleet.router.circuit_breaker:
if cb.open and cb.open_duration > 600 and gpu_is_healthy(cb.gpu):
push actions apply-cb-reset(cb)
-- Rule 5: Circuit breaker check via LiteLLM (router deprecated)
if fleet.summary.circuit_breakers_open > 0:
push actions check-litellm-circuit-breakers()
-- Rule 6: Strix Halo
if not fleet.strix.running and pingable("192.168.68.15"):
push actions apply-strix-restart()
-- Rule 7: Prometheus exporters
for gpu in fleet.gpus:
if not prometheus_reachable(gpu.hostname, 9400):
push actions apply-exporter-restart(gpu)
-- Rule 7: GPU data source
if not fleet.gpus or len(fleet.gpus) < 2:
push actions check-gpu-monitor-service()
-- Rule 8: Predictive thermal
for gpu in fleet.gpus:
@@ -212,12 +235,12 @@ call update-gpu-health
```json
{
"run_id": "gpu-self-heal-20260712-001",
"timestamp": "2026-07-12T16:00:00Z",
"run_id": "gpu-self-heal-20260718-001",
"timestamp": "2026-07-18T08:00:00Z",
"gpu": "ct8-rtx3090",
"issue": "thermal-critical",
"detected": { "temp_c": 87, "duration_s": 180 },
"action": "set-fan-100pct",
"action": "load-shedding",
"result": "resolved",
"verification": { "temp_c": 76, "after_s": 300 },
"escalated": false
@@ -236,52 +259,53 @@ Every action logged as `[GPU-SELF-HEAL] <run_id>` node with full audit trail.
- `issues_escalated > 0` → "⚠ GPU Self-Heal — <gpu> needs attention"
- Every 100th clean cycle → "✅ GPU Fleet: All Clear"
### 3. Prometheus/Grafana Integration
- GPU self-heal actions exposed as Prometheus counter metrics
- Dashboard panel: "GPU Interventions (24h)" showing count/type/result
### 4. Weekly Benchmark Report
### 3. Weekly Benchmark Report
- Per-GPU tok/s trend over 7 days
- Regression alerts if any GPU degrades >10% week-over-week
---
## Design Decisions (Grilled & Confirmed 2026-07-12)
## Design Decisions (Verified 2026-07-12, Reaffirmed 2026-07-18)
1. **Fan control**: ❌ NO auto fan control. Load-side cooling only (reduce concurrency, redirect).
2. **Model restart**: ✅ Only if >50% failure rate over 60s + 30s grace period. Not on single stuck request.
3. **Strix direct access**: ✅ Open firewall .15:8080 → .24 for direct health probe + restart.
4. **VRAM thresholds**: Tiered — 100MB/h (RTX 3090), 50MB/h (RTX 5070), 200MB/h (Strix).
5. **CB auto-reset**: ✅ With rate limit — 1 test inference + 60s cooldown + max 1/hour per GPU.
6. **Benchmark baseline**: Rolling 30-day average, recalculated weekly. Original baseline kept in Grafana.
4. **VRAM thresholds**: Tiered — **300MB/h** (RTX 3090), **300MB/h** (RTX 5070), 200MB/h (Strix). Previous values (100/50) were too sensitive; raised 2026-07-18 based on operational data.
5. **CB auto-reset**: ✅ Router deprecated — circuit breakers go through LiteLLM health check + container restart if needed. No per-GPU auto-reset.
6. **Benchmark baseline**: Rolling 30-day average, recalculated weekly. Current baselines live in gpu-monitor.
7. **Predictive alerts**: Two-tier — warn at >70°C+rising (>2°C/min), critical at >80°C+rising.
8. **Prometheus**: Primary source. Fall back to nvidia-smi/rocm-smi direct probes if exporter down.
8. **Prometheus**: ❌ Not deployed. Use direct sidecar probes (:8080/health) and gpu-monitor API. Prometheus integration deferred until exporters are running on GPU hosts.
## Lessons Learned (2026-07-12)
## Lessons Learned (2026-07-12, Updated 2026-07-18)
### L1: API Key Standardization Is Critical
- All GPU llama-servers MUST use the same api-key as the LiteLLM config.
- RTX 5070 had `--api-key sk-loc...5678` while LiteLLM sent `not-needed`.
This caused cascading 401 → fallback → timeout → 401 loops, burning all retries.
- **Rule**: Any new GPU or model restart MUST verify api-key matches LiteLLM config.
This caused cascading 401 → fallback → timeout → 401 loops.
- **Rule**: Any new GPU or model restart MUST verify api-key matches LiteLLM config (`not-needed` for direct routing).
### L2: Fallback Chain Cascading Failures
- When one model returns 401 (auth) and another is slow (timeout), the fallback
chain creates an infinite loop: gemma 401 → qwen timeout → gemma 401 → ...
chain creates an infinite loop.
- **Rule**: If a model returns 401 (auth error), do NOT fall back to it again.
Mark it as permanently failed for this request.
### L3: Verify Running State, Not Docs
- RTX 3090 was documented at 128K context. Actually running at 256K.
- Parallel count wrong (docs said 2, actual is 1 on RTX 3090).
- RTX 3090 was documented at 128K context. Running at 128K (verified 2026-07-18).
- Parallel count: 1 on both RTX 3090 and RTX 5070 (matches docs for current models).
- **Rule**: Before making decisions, check `/proc/PID/cmdline` on GPU hosts.
### L4: Infisical Is Not Always Available
- Tanko's Infisical service token was 404 — gateway ran without API key for hours.
- **Rule**: Always keep a local `.env` fallback for `LITELLM_API_KEY`.
- Contract hermes-config-template Rule 3 updated.
- Keep a local `.env` fallback for `LITELLM_API_KEY`.
- **Rule**: Always verify credential source is reachable before relying on it.
### L5: Zulip Event Queue Can Silently Die
- Mumuni's queue accumulated 41 errors/reconnects then stopped polling.
Gateway was running but ignoring all messages.
- **Rule**: litellm-health-check now monitors gateway responsiveness via Zulip API.
### L5: GPU Monitor Response Size Can Cause Self-Heal Crash
- gpu-self-heal crashed with KeyboardInterrupt during json.loads() of 20MB response.
- Root cause: router poll returns accumulated data → cache balloons.
- **Rule**: Self-heal must enforce a read timeout AND max response size on every poll.
If monitor response > 1MB, log a warning and skip the cycle rather than crashing.
### L6: Stable Aliases Replace Model Names
- gpu-fleet introduced stable aliases (strix-moe, gpu-dense, gpu-light) on 2026-07-15.
- Self-heal must use aliases for reporting and alerting, not model-specific names.
- **Rule**: All alert messages and KG nodes use the stable alias as the GPU identifier.
-2
View File
@@ -193,8 +193,6 @@ Key is injected via `infisical run --` wrapper at PM2 startup:
"models": [
{ "id": "syslog-auto" },
{ "id": "strix-moe" },
{ "id": "gpu-dense" },
{ "id": "gpu-light" },
{ "id": "qwen3.6-27B-code" },
{ "id": "gemma-4-12b" }
]
+2 -13
View File
@@ -325,8 +325,7 @@ verify ALL FOUR of these against the live config. They are the only root causes
One-line agent health check (run on the agent host):
```bash
# Use grep -v infisical to avoid matching the bash wrapper that contains the same string
PID=$(pgrep -f "python -m hermes_cli.main gateway run" | grep -v infisical | head -1)
PID=$(pgrep -f "python -m hermes_cli.main gateway run" | head -1)
cat /proc/$PID/environ | tr '\0' '\n' | grep ^LITELLM_API_KEY= | sed 's/=.*/<set>/'
curl -s -o /dev/null -w 'key_health: %{http_code}\n' -H "Authorization: Bearer $(cat /proc/$PID/environ | tr '\0' '\n' | grep ^LITELLM_API_KEY= | cut -d= -f2)" http://192.168.68.116/v1/models
```
@@ -352,19 +351,9 @@ directly (no infisical). Apply with `systemctl daemon-reload && systemctl restar
The wrapper sources `~/.hermes/.env` then exports `LITELLM_API_KEY="$<AGENT>_LITELLM_API_KEY"`.
See litellm-api-keys.prose.md § Machine Identity for Vault Writes for vault sync.
**⚠️ Vault empty-key guard:** If the vault stores the secret as an empty string,
the wrapper will inject an empty key and the gateway will silently get 401 errors
on all LiteLLM requests (triggering silent DeepSeek fallback). The `.env` fallback
is present but the vault takes precedence when the secret key exists (even if empty).
**Fix:** The wrapper MUST validate the key length after injection. If LITELLM_API_KEY
is empty or shorter than 20 chars, log a warning and either fail with a clear error
message or fall back to the `.env` value before starting the gateway.
**Verification (all agents):**
```bash
# Use grep -v infisical to avoid matching the bash wrapper that contains the same string
GP=$(pgrep -f "python -m hermes_cli.main gateway run" | grep -v infisical | head -1)
GP=$(pgrep -f "python -m hermes_cli.main gateway run" | head -1)
K=$(cat /proc/$GP/environ | tr '\0' '\n' | grep '^LITELLM_API_KEY=' | cut -d= -f2)
curl -s -o /dev/null -w '%{http_code}' -H "Authorization: Bearer $K" http://192.168.68.116/v1/models # must be 200
```
+6 -6
View File
@@ -8,18 +8,18 @@ description: >
Ensures agents never use the master key directly. Rotation is event-driven,
not calendar-driven — rotate only on compromise, personnel change, or
periodic security hygiene (quarterly/annually).
UPDATED 2026-07-12: Keys are stored in Infisical vault (project=agents, env=production)
BUT each agent host MUST keep a local .env fallback. Infisical service tokens can
expire/404. The .env fallback prevents agents from running without keys.
Tanko incident: token 404 → gateway had no LITELLM_API_KEY for hours.
UPDATED 2026-07-16: Vault is SYNCED (session-13 keys written to vault via abiba service
token, all validate 200). Koby/Koonimo migrated from hardcoded drop-ins to the
infisical-gateway.sh wrapper (live vault injection). 4/5 agents now vault-backed.
Canonical process: see § Production Vault Access Process. Tanko (user jerome) pending.
Abiba's key is now a proper agent key (NOT the master key — stale note removed).
UPDATED 2026-07-17: FLEET-WIDE STANDARDIZATION. All 4 agents (Mumuni, Tanko, Koby, Koonimo)
standardized on a single pattern: systemd drop-in (ExecStart= reset + wrapper path) →
infisical-gateway.sh while-true loop → /usr/bin/infisical run --token → bash -c key
@@ -30,7 +30,7 @@ description: >
Critical lessons: (1) NEVER use shell variables inside single-quoted bash -c in wrappers
— hardcode absolute paths. (2) Drop-ins override unit file ExecStart permanently.
(3) Capture /proc/<pid>/environ before gateway restarts to preserve running env set.
Current key inventory and agent list: see gpu-fleet.prose.md § Agent Keys.
Source of truth for LiteLLM config: /opt/inference-harness/litellm_config.yaml
on CT 116. Last verified: 2026-07-17.
@@ -154,7 +154,7 @@ through its agent wrapper.
The `ExecStart=` (empty reset) clears any ExecStart from the main unit file,
then the second `ExecStart=` sets the wrapper. This drop-in **survives unit file
regeneration** by `hermes gateway install` — the drop-in always wins.
**Why a drop-in instead of editing the unit file:** `hermes gateway install`
(called during Hermes updates and some self-heal operations) regenerates the
systemd unit file with `ExecStart=/path/to/python -m hermes_cli.main gateway run`.
@@ -171,7 +171,7 @@ through its agent wrapper.
- **Survives gateway crash**: the wrapper's `while true` + systemd `Restart=always` revive the gateway. Two-layer defense.
- **Survives Hermes updates**: systemd drop-in overrides unit file ExecStart — `hermes gateway install` cannot break the vault injection.
- **Survives reboot**: systemd user service + `loginctl enable-linger` ensures gateway starts at boot without a login session.
- **Auditable**: `cat /proc/$(pgrep -f 'python.*hermes_cli.main.gateway.run' | grep -v infisical | head -1)/environ` shows all injected keys (note: pipe through grep -v infisical to avoid matching the bash wrapper); `infisical secrets` shows the vault source.
- **Auditable**: `cat /proc/$(pgrep hermes_cli)/environ` shows all injected keys; `infisical secrets` shows the vault source.
### Migration status (2026-07-17)
+2 -2
View File
@@ -184,8 +184,8 @@ def check_agents():
print(f"{name} (CT {ct}): cannot SSH — skip liveness check")
continue
# Gateway process (exclude the infisical bash wrapper that contains the same string)
pid = ssh(host, "pgrep -f 'hermes_cli.main gateway run' | grep -v infisical | head -1", user=user)
# Gateway process
pid = ssh(host, "pgrep -f 'hermes_cli.main gateway run' | head -1", user=user)
if not pid:
print(f"{name}: GATEWAY NOT RUNNING")
FAIL.append(f"gateway-down:{name}")