aitbc/docs/infrastructure/SYSTEMD_SERVICES.md

SystemD Services Management Guide

Last Updated: 2026-03-29
Version: 3.4 (Debian Root Usage)
Environment: Debian Linux with root user (no sudo required)

Overview

This guide covers SystemD service management for AITBC following the infrastructure optimization that fixed 34+ services.

🚀 Service Status After Optimization

✅ Fixed Services (34+ services updated)

• Python Interpreter: Changed from non-existent venvs to /usr/bin/python3
• Working Directories: Updated to correct paths
• Environment Files: Created missing .env files
• PYTHONPATH: Fixed module import paths

📁 Service Categories

Core Services

• aitbc-coordinator-api.service - Central API (Port 8000)
• aitbc-blockchain-node.service - Blockchain node (Port 8005)
• aitbc-exchange-api.service - Exchange API (Port 8001)
• aitbc-wallet.service - Wallet service (Port 8003)
• aitbc-adaptive-learning.service - Adaptive Learning (Port 8010)

Agent Services

• aitbc-agent-registry.service - Agent discovery
• aitbc-agent-coordinator.service - Task coordination
• aitbc-ai-service.service - AI services

Blockchain Services

• aitbc-blockchain-node.service - Blockchain Node with P2P (Port 8005)
• aitbc-blockchain-rpc.service - RPC API (Port 8006)

Supporting Services

• aitbc-explorer.service - Blockchain explorer
• aitbc-gpu-miner.service - GPU mining
• aitbc-marketplace.service - Marketplace
• aitbc-multimodal.service - Multimodal processing

<EFBFBD> Current Port Mapping

Active Services (as of 2026-03-29)

✅ Port 8000 - Coordinator API (aitbc-coordinator-api.service)
✅ Port 8001 - Exchange API (aitbc-exchange-api.service)  
✅ Port 8003 - Wallet Service (aitbc-wallet.service)
✅ Port 8006 - Blockchain RPC (aitbc-blockchain-rpc.service)
✅ Port 8010 - Adaptive Learning (aitbc-adaptive-learning.service)
✅ Port 8005 - Blockchain Node with P2P (aitbc-blockchain-node.service)

Service Dependencies

Coordinator API → Wallet Service → Exchange API
Blockchain RPC ← Blockchain Node (with P2P)
Adaptive Learning → Coordinator API

<EFBFBD><EFBFBD> Service Management Commands

Basic Operations

# List all AITBC services
systemctl list-units --all | grep aitbc

# Check service status
systemctl status aitbc-coordinator-api.service

# Start a service
systemctl start aitbc-coordinator-api.service

# Stop a service
systemctl stop aitbc-coordinator-api.service

# Restart a service
systemctl restart aitbc-coordinator-api.service

# Enable auto-start
systemctl enable aitbc-coordinator-api.service

# Disable auto-start
systemctl disable aitbc-coordinator-api.service

Bulk Operations

# Start all core services
systemctl start aitbc-coordinator-api aitbc-blockchain-node aitbc-exchange-api aitbc-wallet

# Restart all agent services
systemctl restart aitbc-agent-* aitbc-ai-service

# Check all services status
systemctl status aitbc-*

📊 Service Monitoring

Health Checks

# Real-time monitoring
watch -n 5 'systemctl status aitbc-* --no-pager'

# Service failures
journalctl -u aitbc-coordinator-api.service --since "1 hour ago" -p err

# All service logs
journalctl -f | grep aitbc

Performance Monitoring

# Resource usage
systemctl status aitbc-* | grep -E "(CPU|Memory)"

# Service start times
systemctl show aitbc-coordinator-api.service --property=ActiveEnterTimestamp

# Dependency failures
systemctl list-dependencies aitbc-coordinator-api.service

🔍 Troubleshooting

Common Issues

Service Not Starting

# Check recent logs
journalctl -u aitbc-service-name.service -n 20

# Check for missing files
systemctl cat aitbc-service-name.service | grep ExecStart

# Verify working directory
ls -la /path/to/working/directory

Python Module Errors

# Check PYTHONPATH
systemctl cat aitbc-service-name.service | grep PYTHONPATH

# Verify module exists
python3 -c "import module.name"

# Install missing dependencies
pip3 install missing-package

Permission Issues

# Check file permissions
ls -la /var/lib/aitbc/keystore/

# Fix keystore permissions
chmod 700 /var/lib/aitbc/keystore/
chown root:root /var/lib/aitbc/keystore/

Service-Specific Fixes

Coordinator API

# Check environment files
ls -la /home/oib/aitbc/apps/coordinator-api/.env

# Verify Python path
python3 -c "import sys; print(sys.path)"

# Test manual startup
cd /home/oib/aitbc/apps/coordinator-api
PYTHONPATH=/home/oib/aitbc/apps/coordinator-api/src python3 -m uvicorn app.main:app --host 0.0.0.0 --port 8000

Blockchain Node

# Check data directory
ls -la /var/lib/aitbc/data/

# Verify configuration
cat /opt/aitbc/apps/blockchain-node/.env.production

# Test blockchain module
cd /opt/aitbc/apps/blockchain-node
python3 -m aitbc_chain.main --help

🔄 Service Dependencies

Startup Order

1. aitbc-agent-registry.service
2. aitbc-agent-coordinator.service
3. aitbc-coordinator-api.service
4. aitbc-blockchain-node.service
5. aitbc-blockchain-rpc.service
6. aitbc-exchange-api.service
7. aitbc-wallet.service

Dependency Chain

network.target
├── aitbc-agent-registry.service
├── aitbc-agent-coordinator.service (requires: registry)
├── aitbc-coordinator-api.service
├── aitbc-blockchain-node.service
├── aitbc-blockchain-rpc.service (requires: node)
├── aitbc-exchange-api.service (requires: coordinator-api)
└── aitbc-wallet.service (requires: coordinator-api)

🛠️ Service Configuration

Standard Service Template

[Unit]
Description=AITBC Service Name
After=network.target
Wants=network.target

[Service]
Type=simple
User=root
WorkingDirectory=/path/to/service
Environment=PYTHONPATH=/path/to/src
ExecStart=/usr/bin/python3 -m module.name
Restart=always
RestartSec=5
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target

Environment Variables

# Common environment variables
PYTHONPATH=/path/to/src
KEYSTORE_PATH=/var/lib/aitbc/keystore
DB_PATH=/var/lib/aitbc/data
LOG_PATH=/var/lib/aitbc/logs

📋 Maintenance Procedures

Regular Tasks

# Weekly service health check
for service in $(systemctl list-units --all | grep aitbc | awk '{print $1}'); do
    echo "=== $service ==="
    systemctl is-active "$service"
done

# Monthly log cleanup
journalctl --vacuum-time=30d

# Service configuration backup
cp -r /etc/systemd/system/aitbc-*.service /backup/systemd/```

### Service Updates
```bash
# After code changes
systemctl daemon-reload
systemctl restart aitbc-affected-service

# After dependency updates
systemctl restart aitbc-*

# Verify all services
systemctl status aitbc-* --no-pager

🚨 Emergency Procedures

Service Recovery

# Emergency restart all services
systemctl restart aitbc-*

# Reset failed services
systemctl reset-failed aitbc-*

# Force service start
systemctl start aitbc-service-name.service --ignore-dependencies

Disaster Recovery

# Restore from backup
cp /backup/systemd/aitbc-*.service /etc/systemd/system/
systemctl daemon-reload
systemctl enable aitbc-*
systemctl start aitbc-*

---

Related Documentation:

• Runtime Directories Guide
• Security Hardening Guide
• Infrastructure Overview