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by yafetn
793 days ago
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Interesting read, thanks! Some points: > Hogging instances might pay, if this stops competitors getting good hosts. This would eat into PnL and is also wasteful on energy. Aren’t reserved instances cheaper than spot? > Bad players could do a ping test to many thousands of EC2 instances, find those which are also at very low latency to their good boxes (assuming these are competitors), and DDoS them during trading hours to hammer the hypervisor’s NIC. This would result in critical overhead occurring for competitors sending orders out. Leaving out the logistics of how someone could do this (why are your instances reachable from the internet?), wouldn’t you have a good case with your exchange to get them kicked out? |
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Would you know who is doing the pinging? The cloud provider would know what account was pinging, but somebody doing this as a trading tactic would have the resources to churn through aws accounts as quickly as they are banned.