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Incident affecting Google App Engine

Degraded serving for Google App Engine and Cloud Functions users in us-central1

Incident began at 2022-05-24 07:01 and ended at 2022-05-24 07:50 (all times are US/Pacific).

Previously affected location(s)

Iowa (us-central1)

Date Time Description
24 May 2022 11:36 PDT

We apologize for the inconvenience this service disruption/outage may have caused. We would like to provide some information about this incident below. Please note, this information is based on our best knowledge at the time of posting and is subject to change as our investigation continues. If you have experienced impact outside of what is listed below, please reach out to Google Support by opening a case or help article

(All Times US/Pacific)

Incident Start: 24 May 2022 07:01

Incident End: 24 May 2022 07:50

Duration: 49 minutes

Affected Services and Features:

  • App Engine
  • Cloud Functions

Regions/Zones: us-central1


Google App Engine and Cloud Functions experienced elevated request latencies for a duration of 49 minutes. From preliminary analysis, the root cause of the issue is an unexpected surge in traffic which increased resource usage. The issue was mitigated by implementing safeguards to prevent resource starvation.

We continue to investigate the nature of the traffic surge and we will identify additional safeguards to prevent recurrence of the issue.

Customer Impact:

  • Affected customers would have experienced elevated latencies for App Engine app serving and Cloud Function executions.
  • Less than 1% of the customers in us-central1 would have seen App Engine and Cloud Function requests failing with errors.
24 May 2022 08:03 PDT

The issue with Google App Engine has been resolved for all affected users as of Tuesday, 2022-05-24 07:50 US/Pacific.

We thank you for your patience while we worked on resolving the issue.

24 May 2022 07:51 PDT

Summary: Degraded serving for Google App Engine and Cloud Functions users in us-central1

Description: We are experiencing an issue with Google App Engine beginning at Tuesday, 2022-05-24 07:01 US/Pacific.

Our engineering team continues to investigate the issue.

We will provide an update by Tuesday, 2022-05-24 08:15 US/Pacific with current details.

We apologize to all who are affected by the disruption.

Diagnosis: Customers are seeing a high serving latency and request failures

Workaround: None at this time