A Brief Overview of Datomic | Datomic
https://docs.datomic.com/on-prem/getting-started/brief-overview.html
Cassandra: Distributed key-value store optimized for write-heavy workloads | by Ameya | Coinmonks | Medium
https://medium.com/coinmonks/cassandra-distributed-key-value-store-optimized-for-write-heavy-workloads-77f69c01388c
Fast key-value stores: An idea whose time has come and gone | Hacker News
https://news.ycombinator.com/item?id=20262235
Remote, in-memory key-value stores: An idea whose time has come and gone? [pdf] | Hacker News
https://news.ycombinator.com/item?id=19823022
cql - Can we use Cassandra as a Key-Value Store? - Stack Overflow
https://stackoverflow.com/questions/49280189/can-we-use-cassandra-as-a-key-value-store