alt Hacker NewsThe top concern I've gotten from dev teams when proposing HA distributed postgres (e.g through RDS Aurora global) is that eventual consistency is not suitable for many workloads.
Does Neki solve for this, and if so how? My understanding of CAP theorem is that this basically requires some compromises around availability, but I'm curious as to what that looks like in practice here.
Replies
arrowleaf • today at 6:01 PM
Same here, first thing I need to know when considering a distributed system is how consistency is handled. If it's eventual consistency, what is the replication lag like? If it's strong consistency, can their network handle that? What happens when a node goes down?
harshitgangal • today at 5:52 PM
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Assuming it works the same way as their MySQL product, Vitess:
The usual way to run it is that you partition your db based on something like a user, so that single user gets a consistent DB, but anything cross-shard may not be.
I know when I worked at Block, Cashapp was using Vitess and getting cross-shard DB writes down and functioning correctly was one of the major blockers to adoption. (though I just did tls management for vitess and didn't write any workloads on top of it, so my impression might be a bit off)