> Unfortunately the reality of today is we don't build data centres and especially not for very highly available systems. Instead we pay that latency penalty to

> Unfortunately the reality of today is we don't build data centres and especially not for very highly available systems. Instead we pay that latency penalty to build geographically redundant systems using cheap rented virtual hardware from 3rd parties. Reminds me of AWS' contrasting approach (reliable delivery, out-of-order messages) in dealing with the latency penalty using specialized hardware and a proprietary transport protocol viz. SRD (Scalable Reliable Datagram): https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9167399 https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=916... > They aren't wrong but they are basically just digging up the Tandem architecture and adapting it to the current RoCE/FCoE enhanced ethernet we have today. Pat Helland, who worked on Tandem, published a paper on a novel way to avoid distributed transactions, which I believe is similar to Google Megastore's design (on top of BigTable) and seems (to my untrained eye) spiritually closer to Cloudflare's Durable Objects: https://queue.acm.org/detail.cfm?id=3025012 https://queue.acm.org/detail.cfm?id=3025012