When the potentially incentivized CarrIOTA Field nodes become a reality, is it possible (or does it make sense) to run multiple nodes on 1 machine? For example, spinning up a large cloud VM and then running as many nodes as possible on it.

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Yes, it is possible. But you need to expose other ports on the same host. But I think it's not really useful. (If you don't have different IP addresses) I would recommend to have them on separated hosts and running other services on the same node. It just makes you way more fault-tolerant if you use separated hosts and racks.

It seems like I/O is a issue on full-nodes. So, smaller nodes with their own SSD/HDD should give you a better overall performance. I'm currently working on IRI/Nelson on Kubernetes with IPv6 only and ARM processors.

  • if there are no bandwidth issues, then doesn't running multiple nodes on the same machine help the tangle in the same way as separate full nodes?
    – Matt
    Feb 12, 2018 at 0:40

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