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by hmmmmm2 2312 days ago
> They don't scale to Google or Facebook operational sizes.

You may or may not know this, but the primary datastore used at both Google and FB is MySQL. Sure, they use replication and sharding, but I would strongly argue that MySQL with sharding scales better than some multi master NoSQL thing like Cassandra.

Related, you should check out https://github.com/vitessio/vitess if you haven't seen it. It's what Youtube and others use for their primary data store in production.
2 comments
keanzu 2312 days ago
> You may or may not know this

I didn't, but they do, surprising!

https://www.facebook.com/notes/facebook-engineering/tao-the-...

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runT1ME 2312 days ago
> but the primary datastore used at both Google and FB is MySQL

I'm almost certain this isn't true, BigTable and Spanner are much more widely used at Google because.... well, MySql doesn't really scale.

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