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Heartbeat Monitoring for Jobs and Workers

February 20, 20266 min read

Heartbeat monitoring is essential for systems that cannot be validated with external HTTP checks.

Best targets for heartbeats

  • Queue workers.
  • Scheduled cron tasks.
  • ETL and batch pipelines.
  • Internal services behind private networks.

Implementation model

Each process sends a heartbeat on successful cycle completion.

Alert if:

  • No heartbeat within expected window.
  • Runtime exceeds historical baseline.
  • Error count spikes between heartbeat intervals.

Practical thresholds

  • Daily jobs: alert at 1.5x expected schedule interval.
  • Minute-level workers: alert after 2 missed intervals.
  • Long-running pipelines: combine start and completion signals.

Incident communication tie-in

When heartbeats fail, status updates should trigger automatically with clear impact summary.

Heartbeat coverage is a major part of a developer-first reliability stack:

Developer-first status pages playbook →