Skip to content

Checklists

Fast triage guides for the first 10 minutes of an Azure Functions investigation.

These checklists help you quickly narrow down the problem category and identify which playbook to follow for deeper analysis.

graph TD
    A[Initial incident signal] --> B{Choose first-response checklist}
    B --> C[Triggers Not Firing checklist]
    B --> D[High Latency checklist]
    B --> E[Scaling Issues checklist]
    C --> F[Trigger playbooks]
    D --> G[Performance playbooks]
    E --> H[Scaling playbooks]
Checklist When to Use
Triggers Not Firing Functions not executing, zero invocations, trigger listener failures
High Latency Slow responses, elevated P95, timeout errors
Scaling Issues Queue backlog growing, executions flat, cold start spikes

Common first actions

Regardless of which checklist you follow, always start with these three checks:

  1. Azure Service Health — Rule out regional platform issues
  2. Application Insights Live Metrics — Confirm whether failures are active
  3. Recent deployments — Check if anything changed in the incident window

See Also

Sources