For anyone looking for a TL;DR, I'd suggest starting at https://netflixtechblog.com/introducing-netflixs-key-value-data-abstraction-layer-1ea8a0a11b30#6f49 http

For anyone looking for a TL;DR, I'd suggest starting at https://netflixtechblog.com/introducing-netflixs-key-value-data-abstraction-layer-1ea8a0a11b30#6f49 https://netflixtechblog.com/introducing-netflixs-key-value-d... , which HN is truncating so you can't see it but I've directly linked to a later section in the post with a #. Up to that point it's basically "a networked HashMap<String, SortedMap<Bytes, Bytes>>". But the ability to return partial results based on a timeout with a pagination token is somewhat unusual and the next section called "Signaling" is at least worth a look.