Expected interval
The expected interval is how often a workflow is supposed to run. Norvane parses it from the workflow's cron expressions where they exist, otherwise learns it from the median gap between recent executions, and leaves it unset when the cadence is too irregular to trust.
How is the expected interval worked out?
Cron takes priority: each expression is parsed and the interval is the smallest gap between the next few fire times. Failing that, the last twenty executions are examined — if there are at least six and the spread is tight enough relative to the median, the median gap becomes the expected interval. If neither holds, the interval stays unset and missed-run monitoring is silently off for that workflow, which the interface states plainly rather than hiding.
Related terms
- Missed run
A missed run is a scheduled workflow execution that never happened — detected by absence rather than by an error, because nothing failed.
- Grace period
The grace period is the slack added to a workflow's expected interval before a late run counts as missed — the dial between noisy alerts and slow ones.