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How big are your apps? Wouldn’t the most simple and reliable way be to get one beefy MySQL server and let all the app instances connect to that?

• zeroCalories 3y ago
  One large VM won't give you replication/sharding, failover, or backups.
  • Aeolun 3y ago
    With one large VM, for most use cases, you do not need anything but the backups.
    • zeroCalories 3y ago
      Sure, if your workload is small and you have a SLA of "it will be fine."
      • Aeolun 3y ago
        Most businesses do not need an SLA on ther webservice beyond ‘call us if it doesn’t work’.