Timeline:
Start Time: 10/19/2023 11:00 AM PT
End Time: 10/19/2023 11:21 AM PT
Customer Impact:
Hearsay is set to auto-scale when an increase in requests occurs. However, a conflict transpired when one instance of our auto-scalers failed to respond to incoming traffic. This led to users intermittently experiencing a 500 Internal Server Error.
Resolution:
Hearsay’s engineers manually scaled up the service right away to handle the excess load, which solved the incident immediately.
Future Improvements:
Auto-scaling has been updated to observe a different threshold value. Additionally, we are already exploring adding a more resilient auto-scaling policy to ensure this does not reoccur.