Cardinality | John Nessime

Instrument Once, Export Anywhere: OpenTelemetry on AWS With ADOT

Post category:Cloud Computing DevOps Monitoring

A pipeline that returns 200 is not a pipeline that works. The four decisions behind running OpenTelemetry on AWS with ADOT, the CloudWatch OTLP endpoint limits that drop data without erroring, and how to catch the failures before a colleague does.

Monitoring n8n Workflow Failures in Grafana: Why Your Green Dashboard Is Lying

Post category:DevOps Technical Guides Troubleshooting

n8n's Prometheus endpoint tells you the process is alive and busy. It does not tell you a workflow stopped producing correct output. This post walks through the three failure families that slip past a default n8n dashboard, the PromQL that catches each one, and how to close the gap with a second source of truth from the executions API.