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by moe 5230 days ago
Simple reliable replication

I cringe every time I read that. MySQL replication is many things, but it is not reliable (as anyone who has used it at scale will confirm).

I think the only reason this myth prevails is because hardly anyone ever actually verifies if their master/slave are in sync. A table checksum can be a real eye-opener here, especially on a deployment that's been running for while and undergone schema changes, restarts, network splits, etc.