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A comment on Post Mortem of Google Outage on 14 December 2020. Parent comment

Re:Post Mortem of Google Outage on 14 December 2020 by silentsea90 on Friday December 18, 2020 @09:58PM (#25474570)
S3 is strongly consistent. https://aws.amazon.com/s3/consistency/

Which of Google's nosql db provides strong consistency - bigtable? Just confirming

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Re:Post Mortem of Google Outage on 14 December 2020 by felixhuttmann on Friday December 18, 2020 @10:08PM (#25474622)
S3 is newly strongly consistent within a single region since last reinvent or so (google cloud storage has been strongly consistent for much longer). However, the cross-region replication for s3 is based on 'copying' [1] so presumably async and not strongly consistent.

GCP datastore and firestore are strongly consistent nosql databases that are available in multi-region configurations [2].

[1] https://docs.aws.amazon.com/AmazonS3/latest/dev/replication.... [2] https://cloud.google.com/datastore/docs/locations

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Re:Post Mortem of Google Outage on 14 December 2020 by frankchn on Saturday December 19, 2020 @12:54AM (#25475433)
S3 became strongly consistent only recently (https://aws.amazon.com/blogs/aws/amazon-s3-update-strong-rea...) while I think GCS and Azure Blob Storage has strong read-after-write consistency for a while now.

In any case, Cloud Spanner provides strong consistency in multi-region deployments.

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Re:Post Mortem of Google Outage on 14 December 2020 by dijit on Saturday December 19, 2020 @07:13AM (#25476946)
And GCP storage buckets has been built on top of spanner sine 2018- giving the same guarantees.

If anything. AWS is playing catch up.

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