# Operational Status - NG7 Live

**Last Updated:** 2026-03-25 05:35 UTC  
**Status:** ✅ FULLY OPERATIONAL

---

## Current State

| Component | Status | Details |
|-----------|--------|---------|
| NG7 (Windows) | ✅ LIVE | Writing directly to Hz over Tailscale |
| Hz Server | ✅ HEALTHY | Receiving scans ~5s interval |
| Nautilus Trader | ✅ RUNNING | Processing scans, 0 lag |
| Scan Bridge | ✅ RUNNING | Legacy backup (unused) |

---

## Recent Changes

### 1. NG7 Direct Hz Write (Primary)
- **Before:** Arrow → SMB → Scan Bridge → Hz (~5-60s lag)
- **After:** NG7 → Hz direct (~67ms network + ~55ms processing)
- **Result:** 400-500x faster, real-time sync

### 2. Supervisord Migration
- Migrated `nautilus_trader` and `scan_bridge` from systemd to supervisord
- Config: `/mnt/dolphinng5_predict/prod/supervisor/dolphin-supervisord.conf`
- Status: `supervisorctl -c ... status`

### 3. Bug Fix: file_mtime
- **Issue:** Nautilus dedup failed (missing `file_mtime` field)
- **Fix:** Added NG7 compatibility fallback using `timestamp`
- **Location:** `nautilus_event_trader.py` line ~320

---

## Test Results

### Latency Benchmark
```
Network (Tailscale):  ~67ms  (52% of total)
Engine processing:    ~55ms  (42% of total)
Total end-to-end:     ~130ms
Sync quality:         0 lag (100% in-sync)
```

### Scan Statistics (Current)
```
Hz latest scan:     #1803
Engine last scan:   #1803
Scans processed:    1674
Bar index:          1613
Capital:            $25,000
Posture:            APEX
```

### Integrity Checks
- ✅ NG7 metadata present
- ✅ Eigenvalue tracking active
- ✅ Pricing data (50 symbols)
- ✅ Multi-window results
- ✅ Byte-for-byte Hz/disk congruence

---

## Architecture

```
NG7 (Windows) ──Tailscale──→ Hz (Linux) ──→ Nautilus
         │                        │
         └────Disk (backup)───────┘
```

**Bottleneck:** Network RTT (~67ms) - physics limited, optimal.

---

## Commands

```bash
# Status
supervisorctl -c /mnt/dolphinng5_predict/prod/supervisor/dolphin-supervisord.conf status

# Hz check
python3 -c "import hazelcast; c=HazelcastClient(cluster_name='dolphin',cluster_members=['localhost:5701']); print(json.loads(c.get_map('DOLPHIN_FEATURES').get('latest_eigen_scan').result()))"

# Logs
tail -50 /mnt/dolphinng5_predict/prod/supervisor/logs/nautilus_trader.log
```

---

## Notes
- Network latency (~67ms) is the dominant factor - expected for EU→Sweden
- Engine processing (~55ms) is secondary
- 0 scan lag = optimal sync achieved
- MHS disabled to prevent restart loops


---

## System Recovery - 2026-03-26 08:00 UTC

**Issue:** System extremely sluggish, terminal locked, load average 16.6+

### Root Causes

| Issue | Details |
|-------|---------|
| Zombie Process Storm | 12,385 zombie `timeout` processes from Hazelcast healthcheck |
| Hung CIFS Mounts | DolphinNG6 shares (3 mounts) unresponsive from `100.119.158.61` |
| Stuck Process | `grep -ri` scanning `/mnt` in D-state for 24+ hours |
| I/O Wait | 38% wait time from blocked SMB operations |

### Actions Taken

1. **Killed stuck processes:**
   - `grep -ri` (PID 101907) - unlocked terminal
   - `meta_health_daemon_v2.py` (PID 224047) - D-state cleared
   - Stuck `ls` processes on CIFS mounts

2. **Cleared zombie processes:**
   - Killed Hazelcast parent (PID 2049)
   - Lazy unmounted 3 hung CIFS shares
   - Zombie count: 12,385 → 3

3. **Fixed Hazelcast zombie leak:**
   - Added `init: true` to `docker-compose.yml`
   - Recreated container with tini init system
   - Healthcheck `timeout` processes now properly reaped

### Results

| Metric | Before | After |
|--------|--------|-------|
| Load Average | 16.6+ | 2.72 |
| Zombie Processes | 12,385 | 3 (stable) |
| I/O Wait | 38% | 0% |
| Total Tasks | 12,682 | 352 |
| System Response | Timeout | <100ms |

### Docker Compose Fix

```yaml
# /mnt/dolphinng5_predict/prod/docker-compose.yml
services:
  hazelcast:
    image: hazelcast/hazelcast:5.3
    init: true  # Added: enables proper zombie reaping
    # ... rest of config
```

### Current Status

| Component | Status | Notes |
|-----------|--------|-------|
| Hazelcast | ✅ Healthy | Init: true, zombie reaping working |
| Hz Management Center | ✅ Up 36h | Stable |
| Prefect Server | ✅ Up 36h | Stable |
| CIFS Mounts | ⚠️ Partial | Only DolphinNG5_Predict mounted |
| System Performance | ✅ Normal | Responsive, low latency |

### CIFS Mount Status

```bash
# Currently mounted:
//100.119.158.61/DolphinNG5_Predict on /mnt/dolphinng5_predict

# Unmounted (server unresponsive):
//100.119.158.61/DolphinNG6
//100.119.158.61/DolphinNG6_Data
//100.119.158.61/DolphinNG6_Data_New
//100.119.158.61/Vids
```

**Note:** DolphinNG6 server at `100.119.158.61` is unresponsive for new mount attempts. DolphinNG5_Predict remains operational.

---

**Last Updated:** 2026-03-26 08:15 UTC  
**Status:** ✅ OPERATIONAL (post-recovery)