Google has reported some elevated error rates at eu-west-1b (Frankfurt), where one of our server is located it. It is under investigation.
The issue with Google App Engine and Cloud Functions has been resolved for all affected applications as of Tuesday, 2019-10-08 03:03 US/Pacific.
The issue with Google App Engine and Google Cloud Functions is partially resolved. The error rate returned by App Engine and Cloud Functions is decreasing.
Google engineering team has determined that further investigation is required to mitigate the issue.
Mitigation work is still underway by Google engineering team. Current data indicates that approximately 20% of applications in Frankfurt are affected by this issue.
Mitigation work is currently underway by Google engineering team. There is no ETA for mitigation at this point. Google will provide more information by Tuesday, 2019-10-08 02:00 US/Pacific.