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Incident affecting Google Cloud DNS

We are experiencing an issue with Cloud DNS CNAME chasing in multiple zones.

Incident began at 2021-01-21 15:55 and ended at 2021-01-21 19:17 (all times are US/Pacific).

Date Time Description
21 Jan 2021 19:17 PST

The issue with Cloud DNS has been resolved for all affected projects as of Thursday, 2021-01-21 19:17 US/Pacific.

We thank you for your patience while we worked on resolving the issue.
21 Jan 2021 18:48 PST

Description: Customers using CNAME chasing may experience an issue with Cloud DNS. Querying for a record defined in one private zone that points to a record in another private zone does not return the final answer. See https://cloud.google.com/dns/docs/cnamechasing for more details about CNAME chasing.

The following zones are known to be impacted currently: us-east1-d

Mitigation work is currently underway by our engineering team. The mitigation is expected to complete by Thursday, 2021-01-21 19:15 US/Pacific.

We will provide more information by Thursday, 2021-01-21 19:15 US/Pacific.

Diagnosis: CNAME chasing between private zone to private zone is not working.

Workaround: None at this time.
21 Jan 2021 18:16 PST

Description: Customers using CNAME chasing may experience an issue with Cloud DNS. Querying for a record defined in one private zone that points to a record in another private zone does not return the final answer. See https://cloud.google.com/dns/docs/cnamechasing for more details about CNAME chasing.

The following zones are known to be impacted currently:

europe-west1-c us-east1-d us-west1-a

Mitigation work is currently underway by our engineering team. The mitigation is expected to complete by Thursday, 2021-01-21 18:45 US/Pacific.

We will provide more information by Thursday, 2021-01-21 18:45 US/Pacific.

Diagnosis: CNAME chasing between private zone to private zone is not working.

Workaround: None at this time.
21 Jan 2021 17:39 PST

Description: Customers using CNAME chasing may experience an issue with Cloud DNS. Querying for a record defined in one private zone that points to a record in another private zone does not return the final answer. See https://cloud.google.com/dns/docs/cnamechasing for more details about CNAME chasing.

The following zones are known to be impacted currently:

asia-east1-a australia-southeast1-a europe-west1-c europe-west2-a us-east1-d us-west1-a

Mitigation work is currently underway by our engineering team. The mitigation is expected to complete by Thursday, 2021-01-21 18:30 US/Pacific.

We will provide more information by Thursday, 2021-01-21 18:15 US/Pacific.

Diagnosis: CNAME chasing between private zone to private zone is not working.

Workaround: None at this time.
21 Jan 2021 17:31 PST

Description: Customers using CNAME chasing may experience an issue with Cloud DNS. Querying for a record defined in one private zone that points to a record in another private zone does not return the final answer. See https://cloud.google.com/dns/docs/cnamechasing for more details about CNAME chasing.

Mitigation work is currently underway by our engineering team.

The following zones are known to be impacted:

asia-east1-a asia-east2-c asia-northeast1-a asia-northeast2-c asia-northeast3-c asia-south1-a asia-southeast1-a asia-southeast2-c australia-southeast1-a europe-west1-c europe-west2-a europe-west3-a europe-west6-c southamerica-east1-a us-central1-d us-east1-d us-west1-a us-west2-c us-west3-c us-west4-c

We do not have an ETA for mitigation at this point.

We will provide more information by Thursday, 2021-01-21 18:00 US/Pacific.

Diagnosis: CNAME chasing between private zone to private zone is not working.

Workaround: None at this time.
21 Jan 2021 16:26 PST

Description: Mitigation work is currently underway by our engineering team.

The following zones are known to be impacted:

asia-east1-a
asia-east2-c
asia-northeast1-a
asia-northeast2-c
asia-northeast3-c
asia-south1-a
asia-southeast1-a
asia-southeast2-c
australia-southeast1-a
europe-west1-c
europe-west2-a
europe-west3-a
europe-west6-c
southamerica-east1-a
us-central1-d
us-east1-d
us-west1-a
us-west2-c
us-west3-c
us-west4-c

We do not have an ETA for mitigation at this point.

We will provide more information by Thursday, 2021-01-21 17:30 US/Pacific.

Diagnosis: CNAME chasing between private zone to private zone is not working.

Workaround: None at this time.