How long until a missed heartbeat is flagged? A reproducible detection timing table

说明与用途

使用检测器源代码和时间表确定心跳被标记为延迟或不可用的确切时间。

问题

Determine how long a scheduled workflow can miss a heartbeat before a monitor marks it late or down.

结果

The detector checks every 60 s, marks a workflow late after 1.5× its expected interval and down after 2×. The table shows exact observed ranges and p95 values for 1, 5, 10, 30, 60 min heartbeats.

工作流

• Extract detector source to read check interval and status multipliers.
• Enumerate every whole‑second scheduler phase (1–60s) for each example interval.
• Record earliest, median, p95, and latest transition times for late and down states.
• Generate a fingerprint of the repository commit, source path, dirty state, and SHA‑256 of the tested implementation.
• Publish the timing table and associated dataset.
• Use the table to set realistic alert thresholds.
• Optionally use the free cron expression explainer to schedule workflows.

证据

The detector checks every 60 seconds, marks a workflow late after 1.5 times its expected interval and down after 2 times its expected interval.

来源

Implementation rule: late when elapsed > expected × 1.5, down when elapsed > expected × 2, evaluation every 60 s.

来源

The generator reads the current detector source and extracts its check interval and status multipliers.

来源

The output stores the repository commit, source path, dirty state and SHA-256 of the tested implementation (source SHA-256 d1ff53f470a80addc76384515fca0e17567588e44c550b903f7bc01ae1940321).

来源