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Pool Hub

Purpose & Scope

Matchmaking gateway between coordinator job requests and available miners. See docs/bootstrap/pool_hub.md for architectural guidance.

Development Setup

  • Create a Python virtual environment under apps/pool-hub/.venv.
  • Install FastAPI, Redis (optional), and PostgreSQL client dependencies once requirements are defined.
  • Implement routers and registry as described in the bootstrap document.

SLA Monitoring and Billing Integration

Pool-Hub now includes comprehensive SLA monitoring and billing integration with coordinator-api:

SLA Metrics

  • Miner Uptime: Tracks miner availability based on heartbeat intervals
  • Response Time: Monitors average response time from match results
  • Job Completion Rate: Tracks successful vs failed job outcomes
  • Capacity Availability: Monitors overall pool capacity utilization

SLA Thresholds

Default thresholds (configurable in settings):

  • Uptime: 95%
  • Response Time: 1000ms
  • Completion Rate: 90%
  • Capacity Availability: 80%

Billing Integration

Pool-Hub integrates with coordinator-api's billing system to:

  • Record usage data (gpu_hours, api_calls, compute_hours)
  • Sync miner usage to tenant billing
  • Generate invoices via coordinator-api
  • Track billing metrics and costs

API Endpoints

SLA and billing endpoints are available under /sla/:

  • GET /sla/metrics/{miner_id} - Get SLA metrics for a miner
  • GET /sla/metrics - Get SLA metrics across all miners
  • GET /sla/violations - Get SLA violations
  • POST /sla/metrics/collect - Trigger SLA metrics collection
  • GET /sla/capacity/snapshots - Get capacity planning snapshots
  • GET /sla/capacity/forecast - Get capacity forecast
  • GET /sla/capacity/recommendations - Get scaling recommendations
  • GET /sla/billing/usage - Get billing usage data
  • POST /sla/billing/sync - Trigger billing sync with coordinator-api

Configuration

Add to .env:

# Coordinator-API Billing Integration
COORDINATOR_BILLING_URL=http://localhost:8011
COORDINATOR_API_KEY=your_api_key_here

# SLA Configuration
SLA_UPTIME_THRESHOLD=95.0
SLA_RESPONSE_TIME_THRESHOLD=1000.0
SLA_COMPLETION_RATE_THRESHOLD=90.0
SLA_CAPACITY_THRESHOLD=80.0

# Capacity Planning
CAPACITY_FORECAST_HOURS=168
CAPACITY_ALERT_THRESHOLD_PCT=80.0

# Billing Sync
BILLING_SYNC_INTERVAL_HOURS=1

# SLA Collection
SLA_COLLECTION_INTERVAL_SECONDS=300

Database Migration

Run the database migration to add SLA and capacity tables:

cd apps/pool-hub
alembic upgrade head

Testing

Run tests for SLA and billing integration:

cd apps/pool-hub
pytest tests/test_sla_collector.py
pytest tests/test_billing_integration.py
pytest tests/test_sla_endpoints.py
pytest tests/test_integration_coordinator.py