Check-in Occurrences
You'll be able to begin monitoring your check-ins in AppSignal after:
A check-in consists of occurrences which can succeed or fail. For a cron check-in, an occurrence is a time at which, according to its configured schedule, AppSignal expects to receive a start and finish event for this check-in. A cron check-in's occurrence succeeds if it receives a finish event during its maximum duration.
For a heartbeat check-in, an occurrence is a time at which AppSignal has received a heartbeat event, and an occurrence succeeds if it receives another heartbeat event during its maximum duration.
Viewing Check-ins
To view all of your app's check-ins, click on the Check-ins overview via the AppSignal app navigation:
Here, you will have an overview of your check-ins with the following columns:
| Column name | Description |
|---|---|
| Identifier and type | The identifier of your check-in and its type. |
| Schedule | The schedule of your check-in: the crontab syntax for cron check-ins, or the maximum duration between heartbeats for heartbeat check-ins. |
| Last failure | The last time a check-in occurrence failed. |
| Last success | The last time a check-in occurrence succeeded. |
| Last occurrence | The status of the last check-in occurrence. |
Statuses
The state of a check-in will be that of its last occurrence. Check-in occurrences will have one of the following statuses:
| Status | Description |
|---|---|
| New | No events have yet been received for this check-in. |
| Success | The check-in occurrence has been completed within its maximum duration. |
| Late | The check-in occurrence has been completed after its maximum duration. |
| Missed | The check-in occurrence has not been completed. |
| Running | A start cron check-in event has been received, or a previous heartbeat's maximum duration has not yet passed. |
Late or missed check-in occurrences are considered to have failed, and AppSignal will notify you that the check-in has failed according to your check-in's settings.
Check-in summary
Clicking on the identifier of a check-in will take you to an overview of:
- The last five occurrences: The timestamps for the last five occurrences for the check-in alongside their status.
- The last five failed occurrences: The timestamps for the last five missed or late check-in occurrences.
