Comment by prirun

I have used Google's jump hash. As I recall, one of the main differences is that jump hash doesn't have a mechanism to remove targets, eg, a server dies and you don't want to route requests to it. Traditional consistent hashing can do that. I guess if you had 4 servers, server #4 dies, then you can go back to 3 servers by just changing num_buckets from 4 to 3. But if server 1 dies, you can't.

Jump hash does allow adding more targets and preserves the property that most request targets stay the same when adding a new target, so if you had 3 targets and add a fourth, ~8% of the requests that would have been sent to targets 1-3 are sent to target 4, evenly chosen from servers 1-3.