On Aug 9th, 2021, from 20:51 UTC to 22:36 UTC, PagerDuty’s notification service experienced an issue resulting in iOS users on a few accounts experiencing delayed iOS push notifications. Android push notifications, SMS, email, and voice channels were unaffected.
On Aug 9th, 2021, at 20:51 UTC, we noticed some outdated connections between our system and the Apple Push Notification Service which resulted in a small backup of iOS push notifications on the PagerDuty Notification Service. Service was restored at 22:36 UTC by re-establishing these connections.
We are working on a few improvements that further enhance our resiliency to stale connections with 3rd party services, so we can retry and re-establish connections automatically. We are also adding additional metrics that will help us prevent the same in the future and respond faster in the event of such an issue. We apologize for the inconvenience that this has caused. For any questions, comments or concerns, please reach out to email@example.com.