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Objective: Reduce the maintenance burden of rsync mirrors by reducing the number of machines and aiming for higher reliability.


  • Keep the masterrsync host around, use it to feed the rest of the network nodes.
  • Run a network per continent (Asia, EU, US).
  • Automatically scale the network based on CPU usage.

A PoC of this is on GCP.

We have n1-standard-1 instances serving rsync out of a container.


Per region:

  • 2.5 cents/h => month is $18/month for NLB.
  • $25/mo for a single n1-standard-1.
  • 1 TB of bandwidth is about $120.