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RDS vs Aurora

RDS vs AuroraΒΆ

  • AWS Aurora is a [[proprietary technology]] from AWS (not open sourced)
  • [[PostgreSQL]] and [[MySQL]] are both supported as AWS Aurora DB (that means your drivers will work as if Aurora was a Postgres or MySQL database)
  • AWS Aurora is AWS cloud optimized and claims 5x performance improvement over [[MySQL]] on AWS RDS, over 3x the performance of Postgres on RDS.
  • Aurora storage automatically grows in increments of 10GB up to 64TB.
  • Aurora can have 15 [[Read Replica]]s while [[MySQL]] has 5, and the replication process is faster (sub 10 ms replica lag).
  • [[Failover]] in Aurora is instantaneous. It's High Availability native.
  • Aurora costs more than RDS (20% more) - but it's more efficient.