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There is none. DynamoDB would be the closest - it's a HA DB for OLTP workloads (but without the transactions). AWS do not have the TrueTime API that Spanner bu

There is none. DynamoDB would be the closest - it's a HA DB for OLTP workloads (but without the transactions). AWS do not have the TrueTime API that Spanner builds on to provide globally consistent transactions. AWS's storage offering S3 is pretty limited in terms of its consistency model: https://medium.com/@jim_dowling/reflections-on-s3s-architectural-flaws-71f14c05a5fa https://medium.com/@jim_dowling/reflections-on-s3s-architect... In contrast, Google's filesystem (yes, not an object store, but a filesystem) is hardly known - Collosus. It provides a HA consistent metadata layer to a distributed filesystem. The closest open-source architecture is HopsFS (distributed metadata for HDFS) - disclosure I work on Hops.

elvinyung 9y ago
I would add to this by saying that AWS Aurora "looks" the most similar to Spanner by being a transparent scale-out relational database with strongly-consistent transactionality, but it doesn't seem to be designed for geo-replication.
- nishantvyas 9y ago
  Agree. AWS aurora is closest to spanner and would work for 95% of use-cases... master-master, cross-colo or geo-replication is great problem for less than 2% of companies...
  - cosmie 9y ago
    Multi-master Aurora is actually in Preview right now[1]. Only for the MySQL variant of Aurora though, not the Postgres variant. [1] https://aws.amazon.com/about-aws/whats-new/2017/11/sign-up-for-the-preview-of-amazon-aurora-multi-master/ https://aws.amazon.com/about-aws/whats-new/2017/11/sign-up-f...
- rpedela 9y ago
  AWS Aurora supports cross region read replicas. Is geo-replication something different?
- deleted 9y ago
  [deleted]
cube2222 9y ago
Isn't DynamoDB more in the direction of Google Cloud Bigtable/Datastore though? If I'm right with this, then this is basically stating: "yeah, aws also has a high scale database offering" but it's not really comparable anyhow.
mrep 9y ago
Actually, AWS recently released a time sync service that anyone can use so you could possible build it: https://aws.amazon.com/blogs/aws/keeping-time-with-amazon-time-sync-service/ https://aws.amazon.com/blogs/aws/keeping-time-with-amazon-ti...

elvinyung 9y ago

I would add to this by saying that AWS Aurora "looks" the most similar to Spanner by being a transparent scale-out relational database with strongly-consistent transactionality, but it doesn't seem to be designed for geo-replication.

nishantvyas 9y ago
Agree. AWS aurora is closest to spanner and would work for 95% of use-cases... master-master, cross-colo or geo-replication is great problem for less than 2% of companies...
- cosmie 9y ago
  Multi-master Aurora is actually in Preview right now[1]. Only for the MySQL variant of Aurora though, not the Postgres variant. [1] https://aws.amazon.com/about-aws/whats-new/2017/11/sign-up-for-the-preview-of-amazon-aurora-multi-master/ https://aws.amazon.com/about-aws/whats-new/2017/11/sign-up-f...
rpedela 9y ago
AWS Aurora supports cross region read replicas. Is geo-replication something different?
deleted 9y ago
[deleted]

cube2222 9y ago

Isn't DynamoDB more in the direction of Google Cloud Bigtable/Datastore though? If I'm right with this, then this is basically stating: "yeah, aws also has a high scale database offering" but it's not really comparable anyhow.

mrep 9y ago

Actually, AWS recently released a time sync service that anyone can use so you could possible build it: https://aws.amazon.com/blogs/aws/keeping-time-with-amazon-time-sync-service/ https://aws.amazon.com/blogs/aws/keeping-time-with-amazon-ti...