coreweave-observability

by jeremylongshore

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SKILL.md About

---
name: coreweave-observability
description: 'Set up GPU monitoring and observability for CoreWeave workloads.

Use when implementing GPU metrics dashboards, configuring alerts,

or tracking inference latency and throughput.

Trigger with phrases like "coreweave monitoring", "coreweave observability",

"coreweave gpu metrics", "coreweave grafana".

'
allowed-tools: Read, Write, Edit, Bash(kubectl:*), Grep
version: 1.0.0
license: MIT
author: Jeremy Longshore <jeremy@intentsolutions.io>
tags:
- saas
- gpu-cloud
- kubernetes
- inference
- coreweave
compatibility: Designed for Claude Code
---
# CoreWeave Observability

## Overview

CoreWeave runs GPU-intensive workloads on Kubernetes where hardware failures, memory exhaustion, and underutilization directly impact cost and reliability. Observability must cover DCGM GPU metrics, Kubernetes pod health, inference latency, and job completion rates. Proactive monitoring prevents wasted spend on idle GPUs and catches OOM conditions before they cascade.

## Key Metrics

| Metric | Type | Target | Alert Threshold |
|--------|------|--------|-----------------|
| GPU utilization | Gauge | > 60% | < 20% for 30m |
| GPU memory usage | Gauge | < 85% | > 95% for 5m |
| Inference latency p99 | Histogram | < 200ms | > 500ms |
| Job completion rate | Counter | > 99% | < 95% per hour |
| Pod restart count | Counter | 0 | > 3 in 15m |
| Node GPU temperature | Gauge | < 80C | > 85C for 10m |

## Instrumentation

```typescript
async function trackInference(model: string, fn: () => Promise<any>) {
  const start = Date.now();
  try {
    const result = await fn();
    metrics.record('coreweave.inference.latency', Date.now() - start, { model, status: 'ok' });
    metrics.increment('coreweave.inference.completed', { model });
    return result;
  } catch (err) {
    metrics.increment('coreweave.inference.errors', { model, error: err.code });
    throw err;
  }
}
```

## Health Check Dashboard

```typescript
async function coreweaveHealth(): Promise<Record<string, string>> {
  const gpu = await queryPrometheus('avg(DCGM_FI_DEV_GPU_UTIL)');
  const mem = await queryPrometheus('avg(DCGM_FI_DEV_FB_USED/(DCGM_FI_DEV_FB_USED+DCGM_FI_DEV_FB_FREE))');
  const pods = await queryPrometheus('kube_deployment_status_replicas_available{namespace="inference"}');
  return {
    gpu_utilization: gpu > 20 ? 'healthy' : 'underutilized',
    gpu_memory: mem < 0.9 ? 'healthy' : 'critical',
    inference_pods: pods > 0 ? 'healthy' : 'down',
  };
}
```

## Alerting Rules

```typescript
const alerts = [
  { metric: 'DCGM_FI_DEV_GPU_UTIL', condition: 'avg < 20', window: '30m', severity: 'warning' },
  { metric: 'gpu_memory_pct', condition: '> 0.95', window: '5m', severity: 'critical' },
  { metric: 'inference_latency_p99', condition: '> 500ms', window: '10m', severity: 'warning' },
  { metric: 'pod_restart_count', condition: '> 3', window: '15m', severity: 'critical' },
];
```

## Structured Logging

```typescript
function logGpuEvent(event: string, node: string, data: Record<string, any>) {
  console.log(JSON.stringify({
    service: 'coreweave', event, node,
    gpu_model: data.gpu_model, utilization: data.util,
    memory_pct: data.memPct, temperature: data.temp,
    timestamp: new Date().toISOString(),
  }));
}
```

## Error Handling

| Signal | Meaning | Action |
|--------|---------|--------|
| GPU util < 20% sustained | Idle GPUs burning cost | Scale down or reassign workload |
| GPU memory > 95% | OOM imminent | Reduce batch size or add nodes |
| Pod CrashLoopBackOff | Driver or config failure | Check DCGM logs, restart node |
| Inference latency spike | Contention or throttling | Review GPU temp and queue depth |
| Node NotReady | Hardware or network issue | Cordon node, migrate pods |

## Resources

- [CoreWeave Observability](https://www.coreweave.com/observability)

## Next Steps

For incident response, see `coreweave-incident-runbook`.